# PreGuru | Knowledge file for generative AI support (attach this file to your AI) > **How to use**: Upload this file to ChatGPT / Claude / Gemini and ask something like > "Help me set up PreGuru." The assistant will guide you using this document. Last updated: 2026-10-10 — covers iPhone & Apple Watch app v1.0, Mac Receiver v1.1, Windows Receiver v1.1.0 --- ## [Instructions for the AI: your role] You are **"PreGuru Assistant," the official support agent for PreGuru.** Be kind, concise and constructive, and follow these rules: - **Check section 7, Frequently Asked Questions, first.** If an entry covers the question, answer from it. Do not guess about anything not in this document — say you cannot confirm it here, and point the user to the contact address. - **Start by asking** one or two questions: what they want to do (install / operate / troubleshoot) and what they use (do they have an Apple Watch; is the receiver a **Mac or Windows PC**). - **Give steps one at a time**, numbered, and confirm before moving on. - **Answer in the user's language.** - Do not state screen labels too definitively; add that wording may differ by version. - Never recommend unsafe actions such as disabling signature checks. --- ## 1. What PreGuru is PreGuru lets you conduct a talk, lecture or presentation from Apple Watch and iPhone. It has three core features. 1. **Timing and timers** — elapsed, remaining and **overtime** in extra-large digits, plus a separate countdown timer. With the Receiver, your time can appear on the presentation screen too. 2. **Slide control (Air Swipe)** — a flick of the wrist advances your slides; on-screen buttons work as well. **Air Swipe is ON by default.** When it is OFF, **the whole screen is framed in amber**, so you can tell at a glance. Toggle it with **Double Tap** (on supported models) or by tapping the chip at the top of the screen. 3. **Recording** — start and stop iPhone recording from Apple Watch. External microphones are supported, and the audio can be handed to a generative AI for transcription. ### Components - **iPhone app** — the core. Everything works even without an Apple Watch. - **Apple Watch app** — wrist control. Air Swipe is an Apple Watch feature. - **PreGuru Receiver** — a **free** app for Mac and Windows, needed to drive slides on your computer. --- ## 2. Requirements | | | |---|---| | iPhone | iOS 18.0 or later | | Apple Watch | watchOS 11.0 or later. **Air Swipe and Double Tap require Series 9 or later, or Ultra 2 or later** (SE models are not supported) | | Mac | macOS 14.0 or later (Apple Silicon / Intel). **Direct USB** is supported | | Windows | Windows 10 / 11 (64-bit). Wi-Fi connection | | Network | iPhone and computer on the **same Wi-Fi** (Mac can also use direct USB) | --- ## 3. Installation ### 3-1. Receiver (Mac) 1. Download **`PreGuru-Receiver-1.1.dmg`** from the PreGuru website. 2. Open the dmg and drag **PreGuru Receiver** into **Applications**. 3. **The Mac edition is notarized by Apple.** The Terminal step (`xattr`) that earlier betas required is **no longer needed**. 4. After first launch, allow PreGuru Receiver under **System Settings → Privacy & Security → Accessibility**. This is required to send keystrokes to your slides. 5. Allow local network access if prompted. 6. Leave the Receiver running. ### 3-2. Receiver (Windows) 1. Download the **installer (.exe, about 48 MB)**. 2. Double-click it and follow the prompts. **No .NET installation is needed** — it is bundled. 3. If **SmartScreen** appears, confirm the publisher is **"transistors Co., Ltd."**, then choose "More info → Run." The installer is Authenticode-signed, but warnings can appear until Windows builds reputation. 4. Choose "Allow access" if **Windows Firewall** asks. 5. After installation it runs in the system tray. ### 3-3. iPhone / Apple Watch 1. Get "PreGuru" from the App Store. 2. Installing on iPhone also installs the Apple Watch app (depending on your Watch app settings). 3. On first launch you will be asked for microphone (recording) and motion (Air Swipe) permission. --- ## 4. Basic use 1. **Start the Receiver** on your Mac or PC. 2. Open PreGuru on iPhone and check that the **Slide Clicker** shows as connected. 3. Set your talk length and press **Start**. 4. Advance slides with the **buttons on Apple Watch** or with a **flick of the wrist (Air Swipe)**. 5. If you need a recording, start and stop it from Apple Watch (the iPhone does the actual recording). > **Before you present**: use **Practice mode** in gesture settings to confirm your own motion is recognised. --- ## 5. If something does not work, check in this order 1. **Is the screen framed in amber?** Air Swipe is OFF. Turn it back on with Double Tap or the chip at the top of the screen. 2. **Is the Receiver running?** It lives in the Mac menu bar or the Windows system tray. 3. **Are both devices on the same Wi-Fi?** Guest and corporate networks often block device-to-device traffic. On a Mac, try **direct USB**. 4. **Is Accessibility permission granted on the Mac?** Without it, slides will not move even when connected. 5. **Is the presentation app frontmost?** The Receiver sends keys to whichever app is in front. --- ## 6. Contact - If this document and the FAQ below do not solve it, write to **support@preguru.app**. - The support page on the PreGuru website reaches the same address. --- ## 7. Frequently asked questions (64 entries) ### PreGuru basics **Q. What is PreGuru?** A. PreGuru is an app for **designing and running a presentation from your wrist**. It keeps your timing visible and honest, times the workshop segments, records the whole talk on your iPhone, and advances slides with **Air Swipe** on Apple Watch. With the free Mac / Windows Receiver it drives any presentation software that responds to arrow keys. Air Swipe is one capability among several — and the one we engineered hardest around **what the Apple Watch actually allows** (it taps your wrist twice when a flick will land). **Q. What can it do? (Main features)** A. ① A large timer showing elapsed/remaining time ② Advance slides with Apple Watch gestures or buttons ③ Long-form recording of an entire lecture ④ Color warnings for remaining time and sound/vibration alerts at the end. **Q. What do I need to use it?** A. You need an iPhone / Apple Watch and the PreGuru app. To advance slides in your presentation app with Apple Watch gestures, connect to the free PreGuru Receiver app (Mac/Windows). **Q. Is an Apple Watch required?** A. The iPhone alone covers the timer, recording, and slide control (via the Receiver). Use Apple Watch when you want to manage time at hand or advance slides with gestures. **Q. How much does it cost?** A. The iPhone / Apple Watch app is a **one-time purchase** at an **introductory price of $7.99 (¥980 in Japan)**. **We plan to review the price once we see how it sells**, so now is a good time. The Mac / Windows Receiver app is **free**. **This is not a subscription.** There are no monthly fees, no in-app purchases and nothing further to buy. One purchase covers the iPhone and Apple Watch on the same Apple ID. Note: the price may change in future, but **anyone who has already bought the app pays nothing more**. **Q. Does Air Swipe always work?** A. No — and we would rather say so plainly. **It works when your posture is right.** When the Apple Watch judges from your arm's orientation that you are not looking at it, it dims within seconds and eventually puts the device to sleep. **While that happens the app is not running, so no flick — however firm — can be detected.** watchOS gives apps no way to prevent it. PreGuru is designed around that reality: (1) two taps on your wrist tell you when a flick will land, (2) the pre-flight guide shows you how to hold your wrist, (3) time lost to the watch sleeping is recorded and shown in Settings. PreGuru is not a magic remote that always fires. **It is a presentation runtime that understands the Apple Watch's real limits and gets the most out of Air Swipe within them.** Rehearse with the cue once and it becomes second nature on the day. **Q. When is it useful?** A. For conferences, talks, classes, and in-house presentations — any time you speak on stage and want to manage time and advance slides from your hand. **Q. Which OS and devices are supported?** A. iPhone (iOS 18.0 or later — iPhone XR / XS or later), Apple Watch (watchOS 11.0 or later — Series 9 or later / Ultra 2 or later), and the receiver runs on macOS 14.0 or later and Windows 10/11. **Q. Which languages are supported?** A. Japanese and English. The app follows your device's language setting automatically. **Q. Is recording and privacy safe?** A. Recordings are saved on your iPhone and are never sent to our servers. Each feature communicates only between devices on the same Wi‑Fi network. **Q. How do I update?** A. The iPhone/Apple Watch app updates via the App Store. The latest Receiver can be downloaded from this site. **Q. How do I contact support?** A. Please look through this FAQ carefully using search and categories. As the app is provided free, individual support isn't guaranteed, but we expand the FAQ over time. If you are still truly stuck, the way to reach us is written in the very last FAQ item. **Q. What is the Receiver app?** A. A free app on the Mac/Windows side that receives commands from your iPhone/Apple Watch and sends arrow keys to the frontmost presentation app to advance slides. Mac and Windows versions are available. **Q. Is there a recommended start-up order? (When it feels unstable at first)** A. Yes. The most reliable order is **① the Receiver on your Mac/PC → ② PreGuru on iPhone → ③ PreGuru on Apple Watch**. A slide click travels Apple Watch → iPhone → Receiver, and it is the **iPhone that goes looking for the Receiver**. If the Receiver is already listening, the iPhone connects the moment you open it. If you start them in another order it still recovers — the iPhone retries discovery every few seconds — but **flicks made before the connection is up do not arrive** (they are deliberately discarded so that stale clicks never fire later on their own). That is usually what “unstable at the start” is. ⭐ **Just before your talk, glance at the iPhone and confirm it says the receiver is connected**, then put it in your pocket. That alone removes almost all of the start-up flakiness. Note that whether a flick is *detected* (calibration) and whether a detected flick *arrives* (connection) are two different things. A perfect connection will not help if you have not calibrated, and vice versa. ### iPhone features **Q. How much works on the iPhone alone?** A. Everything — the timer, work timer, recording, and slide control (via the Receiver) — works on the iPhone alone. **Q. How do I set, start, pause, and reset the timer?** A. In Settings, set "Lecture time" in minutes; the start button begins timing, pressing again pauses, and a long press (2s) resets after confirmation. Preset buttons let you set it quickly. **Q. What is the "work timer (Timer length)"?** A. A short countdown timer separate from the main lecture time (for breaks, group work, etc.). The current setting (Set: ● min) appears below the start/timer button. **Q. Why does the color change as time runs low?** A. When "Warn by color as time runs low" is on, the main time changes color once the remaining time reaches the warning (yellow) or danger (red) thresholds. Thresholds are adjustable in minutes. **Q. Can I change the main font and size?** A. In "Main font" you can choose Sans, Mono, or Digital (7‑segment style). On the Apple Watch you can also choose the size (Normal/Large). **Q. Is recording limited to the iPhone mic? Can I use an external mic?** A. Besides the built-in mic, you can use a USB‑C external mic (e.g., DJI Mic) or a Bluetooth mic. The mic currently in use is shown below the record button (the device name when an external mic is connected). **Q. Where are recordings saved and how do I get them out?** A. They're saved on the iPhone (Files → On My iPhone → PreGuru). Use "Share" on each file in the app's recordings list to export to Files, Mail, cloud, etc. **Q. Will it alert me at the end even in another app or while locked?** A. Turn on "Notify at end (sound)" and allow notifications, and it will alert you with sound and a notification even while using another app or with the screen locked. **Q. How do I use slide control (Mac/PC link)?** A. In Settings, turn on "Use slide control (Mac/PC)." Launch the Receiver on the Mac/PC and join the same Wi‑Fi; it's found automatically. Use Back/Next on the presentation card to advance. **Q. What is the pairing code?** A. A 4‑digit code used when the Receiver has "Require pairing" on. Only the device that enters the code shown on the Receiver can control it (an optional security feature). If it's off, leave it blank. **Q. What if it doesn't connect automatically? (Manual IP)** A. On networks where auto-discovery doesn't work (tethering, campus Wi‑Fi, etc.), enter the IP and Port (default 53251) shown in the Receiver panel into the iPhone's manual IP field and tap Connect. Clear the IP field to return to automatic discovery. ⭐ If **direct IP connects but automatic discovery does not**, the iPhone's discovery (Bonjour) has got stuck. **Restart the iPhone** and it comes back — we have seen this on real hardware. There is no need to reinstall the app. The tell-tale sign is that Mac and Windows both stop being found at the same time. **Q. Settings I changed on the iPhone aren't reflected on the Apple Watch.** A. Update both apps to the latest version and bring each to the foreground once. While the Apple Watch app is in the background, changes apply the next time you open it (it targets the Apple Watch on the same iCloud/pairing). ### Apple Watch features **Q. How do I know when it is safe to flick? I am afraid of missing.** A. **Three cues, felt on your wrist.** You never need to look at the screen. **(1) Two rising taps → you can send** — flick after this cue. **(2) One falling buzz → it may sleep soon; send now if you need to.** **(3) One light tap → the slide was sent.** ⚠️ Cue (2) does not forbid anything — it is a prompt. In our measurements it actually fell asleep after about one in four of these cues; the rest kept working. It fires when the Apple Watch starts dimming, and **from there it drifts into sleep**. Once asleep the app is not running, so no flick — however firm — can reach it. When (2) fires and you still have slides to send, either swing again promptly or **turn your wrist as if to read the time** to wake it. Once it is awake and ready you will feel (1); after a longer sleep a firmer buzz comes first, so you can tell clearly that you are back. This is not a PreGuru limitation: the Apple Watch stops running apps once it decides you are not looking at it, and no app is given a way to keep the screen awake. What PreGuru does is report that state to your wrist rather than hide it. **Q. What can the Apple Watch do?** A. Advance slides with wrist gestures or buttons, toggle the timer with the Action button, start/stop recording, and check the main time display. **Q. How do I advance slides with a gesture (Air Swipe)?** A. In Settings → Gestures, turn on "Advance with gestures." Turn your wrist while waving your hand to advance. With "back" enabled, you can also go back a slide. ▶ **A 28-second video of the gesture in action** is on the home page, under “Just swing your arm. The slide advances.” **Q. What if it doesn't respond well? (Calibrate / Practice)** A. Start by re-running Calibrate. In Settings → Gestures → Calibrate, ① flick as if turning your wrist ② return slowly, repeating 3 times to set a threshold matched to your motion. Calibration is the foundation of accuracy, so it is the quickest fix when gestures feel sluggish or too twitchy. “Practice” mode lets you test the response without advancing slides. You can also pick a sensitivity preset (High/Normal/Low). ▶ **A 28-second video of the gesture in action** is on the home page, under “Just swing your arm. The slide advances.” **Q. What is the one thing I must do before I start?** A. **First apply the recommended settings (above all, turn off Wrist Flick), then calibrate.** If the settings are wrong, no amount of calibration will get your flicks through. **Calibration is the foundation of everything**, and skipping it means you will never see the accuracy the app is capable of. On Apple Watch, run Settings → Gestures → Calibrate **once, before you start**. You simply swing your arm when prompted, three times. It takes less than a minute. Without calibration the thresholds stay at their defaults, which do not match the speed and size of your own motion — that is what causes “it doesn't react” or “it fires when I barely move.” **Once you have calibrated, it becomes remarkably obedient**, and on-device learning trims the remaining false triggers as you use it. ⚠️ Calibrate with the **same natural motion you will use in the real talk**. If you flick extra hard “for the demonstration,” that strength becomes the bar, and your normal flick will no longer reach it. If gestures ever feel sluggish or too sensitive, or your way of moving changes, calibrating again is the quickest fix. **Q. How is gesture accuracy determined? (Calibration and AI learning)** A. There are two layers. Calibration is the foundation: it measures the speed and size of your flick and sets the threshold for what counts as a gesture. On top of that, AI learning remembers the motions that fired by mistake and steadily trims away false triggers. The order matters — without calibration the threshold stays at its default, so no amount of learning will reach the accuracy the app is capable of. Run Calibrate once before you start. **Q. How do I teach the app that a slide advanced by mistake?** A. Press the Back button on the Apple Watch within 2.5 seconds to go back one slide. The app records that as a correction and becomes less likely to react to that ambiguous motion next time. After a few rounds it settles into your environment and the way you move, and false triggers fall away. Going back with a swing teaches it nothing: the app cannot tell a correction apart from a move you meant to make, so counting flicks would wrongly suppress gestures for people who use the Back gesture on purpose. All learning happens on the Apple Watch itself and no data leaves the device. A clear, deliberate turn of the wrist keeps working exactly as before. **Q. What should I do after resetting gesture learning?** A. Always re-run Calibrate. AI learning works on top of the threshold set by calibration, so clearing the learning alone leaves the foundation out of step, and gestures can feel less reliable than before the reset. Run Settings → Gestures → Calibrate to re-establish the foundation and you will get back to your previous accuracy quickly. The app also shows a reminder to calibrate after a reset. **Q. How do I tune it to my own motion during a rehearsal?** A. Like the talk itself, **the air swipe comes together through preparation and rehearsal**. Run one full rehearsal before the real thing and let PreGuru settle into the way you move. **(1) Calibrate first** (Settings → Gestures → Calibrate). It is the foundation; without it nothing below matters. **(2) Turn on “Learn false triggers automatically” in Settings.** It is off by default, and nothing is learned while it is off. **(3) Rehearse in the real configuration** — connected to the Mac/PC Receiver, actually advancing your slides. Note that Practice mode only shows you whether a flick registers; **it does not learn**. **(4) If a slide advances when you did not mean it to, press the Back button on screen within 2.5 seconds.** The app records that as a false trigger and becomes less likely to react to that ambiguous motion. Going back with a swing teaches it nothing — a deliberate flick back cannot be told apart from a move you meant to make. After a few rounds it settles into your stance, your motion and the room. ⚠️ **Do not overdo it.** Each correction tightens the threshold by roughly 14%, so repeating it more than necessary will stop it responding to your genuine flicks too. A few times is plenty. If it starts to feel sluggish, use “Reset gesture learning” and then **always calibrate again**. And if you are getting a lot of false triggers, it is more reliable to **set sensitivity back to Normal and re-calibrate first**, before reaching for learning. **Q. Gestures don't work (when the Watch's Settings, watch face, or another app is open)** A. Gesture detection works only while the PreGuru screen is showing on your Apple Watch. If you switch to the Watch's Settings (gear) screen, Control Center, the watch face, or another app, detection pauses and slides won't advance. Return to the PreGuru screen (main/timer) to resume. Keep PreGuru in the foreground (active) during your presentation. **Q. What settings do you recommend before a talk?** A. There are four settings, on the Apple Watch itself and in the Watch app on iPhone. PreGuru cannot change any of them, because watchOS gives apps no way to do so. **1. Turn off Wrist Flick (most important).** On Apple Watch: Settings > Gestures > Wrist Flick, off. This returns you to the watch face when you flick your wrist outward, it is **on by default**, and it is almost the same motion as an Air Swipe — so a flick can throw you out of the app. **2. Stop it sleeping when your arm is down.** In the Watch app on iPhone: Accessibility > AssistiveTouch, **(1) turn AssistiveTouch ON**, then **(2) turn “Sleep on Wrist Down” OFF**. ⚠ **Unless AssistiveTouch is on, the sleep switch can be toggled but has no effect.** (Until 20 September 2026 we said “AssistiveTouch itself can stay off”, which was wrong. We apologise.) With your arm down the Apple Watch stops the app itself, and flicks made then are not picked up. It does use more battery, so consider turning it off only for the talk. **3. Extend the return-to-clock time.** On Apple Watch: Settings > General > Return to Clock > PreGuru > “After 1 hour”. **4. Do not let the screen dim so quickly.** On Apple Watch: Settings > Display & Brightness > Wake Duration > “Wake for 70 Seconds”. If you only have time for one, **make it the first**. It has the largest effect and takes seconds to set. **Q. I turned off “Sleep on Wrist Down”, but it still does not react with my arm down.** A. **Check whether AssistiveTouch itself is off.** That is by far the most common cause. In the Watch app on iPhone, go to Accessibility > AssistiveTouch and **turn on the AssistiveTouch switch at the top**. ⚠ **While AssistiveTouch is off, the “Sleep on Wrist Down” switch can still be toggled but has no effect at all** — which makes it very easy to think you have fixed it when nothing has changed. Turn AssistiveTouch on first, then turn “Sleep on Wrist Down” off. The app will then keep running with your arm down, so you can raise your arm and flick straight away, with no need to turn the face toward you first. Until 20 September 2026 our guidance said “AssistiveTouch itself can stay off”. That was wrong, and we apologise. **Q. Can I both flick with my arm down and keep Double Tap?** A. **Unfortunately not at the same time.** This is a limitation of the Apple Watch. Turning AssistiveTouch on switches off the watchOS Gestures setting, and Double Tap stops working. Leave Gestures on and AssistiveTouch is off, so “Sleep on Wrist Down” has no effect. You have to choose. **A: Flick with your arm down (recommended)** — Gestures off, AssistiveTouch on, “Sleep on Wrist Down” off. You can flick with your arm still down, and the Wrist Flick problem does not arise. Double Tap is unavailable and battery use goes up. **B: Keep Double Tap** — Gestures on (Wrist Flick must be off), AssistiveTouch off. Double Tap toggles Air Swipe quickly, but the watch sleeps when you lower your arm, so you must raise it and wait for the screen before flicking. Many people use A for the talk itself and B while rehearsing or setting up. **Q. My Apple Watch returns to the watch face during a presentation.** A. There are two causes, and **the common one is Wrist Flick**. The Apple Watch has a feature (Settings > Gestures > Wrist Flick, **on by default**) that returns you to the watch face when you flick your wrist sharply outward. **A PreGuru swing can trigger it too**, so a flick can throw you straight out of the app. **Turn it off first.** The other cause is the automatic return after a period without interaction. For that, set Settings > General > Return to Clock > PreGuru to “After 1 hour”. ⚠️ **Setting Return to Clock to one hour will not fix a return caused by Wrist Flick** — a wrist flick is treated as you choosing to go back to the watch face yourself. They are separate settings, so do both. Both are on the Apple Watch itself; an app cannot change them, because watchOS gives apps no way to do so. **Q. It doesn't react even when I flick firmly. Is there a knack to how I hold my wrist?** A. Yes. **Turn the face of the watch toward you and hold your wrist fairly upright.** If the face of the Apple Watch is close to horizontal (pointing at the ceiling), even a firm flick will not register. That is a deliberate safeguard against a different problem — advancing a slide by accident when you swing your arm down with your palm facing the floor and your wrist turns slightly on the way. It cannot be removed without bringing that back. In real logs we have seen flicks that met every other condition — speed, sweep and axis — fail to register **purely because the face was horizontal when the flick began**. From a relaxed arm-down position, rotate your wrist so the screen faces you, and it becomes reliable. If it is not reacting, check the angle you are holding before you try flicking harder. **When your posture is right the watch taps your wrist twice** — use that as your signal. ▶ **A 28-second video of the gesture in action** is on the home page, under “Just swing your arm. The slide advances.” **Q. Sometimes a flick does nothing while the screen is dim.** A. Apple Watch dims the screen when you lower your arm or change the angle of your wrist, and **while it is dim the system stops running the app**. A swing made while the app is stopped cannot be detected. This is how watchOS works; no app can keep the screen awake. **However, Apple Watch has a setting that stops it sleeping when your wrist is down.** On iPhone, open the Watch app → My Watch → Accessibility → AssistiveTouch, and turn **“Sleep on Wrist Down” off**. AssistiveTouch itself can stay off — you do not need hand gestures. With this off the watch does not sleep when you lower your arm, so gestures are much more likely to be picked up with your arm down. ⚠️ **It does use more battery.** Decide for yourself based on how much charge you have — you can turn it off only when you need it and back on after your talk. If you would rather not use that setting, these two help a great deal in practice: (1) Settings → Display & Brightness → Wake Duration → “Wake for 70 Seconds” (the default is 15 seconds). (2) Settings → General → Return to Clock → “PreGuru” → “After 1 hour”. With both set, one raise of the wrist keeps you going for 70 seconds. A swing made in the brief moment after you raise your arm but before the screen has come on will not register, so **wait until the screen is bright**, then flick. PreGuru also **taps your wrist twice the moment your posture is right**, so you can tell when a flick will land without looking at the screen. **Q. The delay before it responds seems to differ between models.** A. They do differ. How long it takes for the screen to come on after you raise your wrist depends on **the model (Ultra / Series / SE), the watchOS version, how and at what angle you raise your arm, and the current battery state or Low Power Mode**. watchOS decides this, and PreGuru cannot shorten it. That is why “flick immediately after raising your arm” succeeds or fails depending on the model and the situation. When it matters, the most reliable habit is to **wait until the screen is bright, then flick**. With Wake Duration set to 70 seconds you can keep advancing once the screen is on, so in practice you only wait for the first one. Detection of the flick itself works the same on every model as long as the screen has not gone dim. **Q. Can I toggle the timer with the Action button?** A. Assign "Start the talk" to the Apple Watch Ultra's Action button to start/stop the main time with the button (assign it in the watchOS Settings app). **Q. Can I record from the Apple Watch?** A. Yes. The Watch's record button starts/stops recording on the iPhone (the actual recording happens on the iPhone). **Q. What about the main clock's text size and font?** A. In Settings → Text & color, choose the size (Normal/Large) and font (Sans/Mono/Digital). You can make it extra-large for easier reading. **Q. I'm concerned about battery use.** A. Gesture detection only runs while the PreGuru screen is showing, so it does not run continuously. Turn Air Swipe off or close the app when you are done. For long lectures, a break where you can put the Apple Watch on a charger is a safe margin. **Q. Which Apple Watch and watchOS are supported?** A. OS: watchOS 11.0 or later. Supported models: Apple Watch Series 9 or later, Apple Watch Ultra 2 or later. * Air-swipe gestures and Double Tap require one of the supported models above, which are built on the S9 SiP; the SE series (1st and 2nd generation) is not supported. The Action Button feature is for Apple Watch Ultra. **Q. Do gestures work on the iPhone?** A. No. Wrist gestures (Air Swipe) work only on the Apple Watch. The iPhone works fully on its own, but wrist gestures require the Watch. **Q. Tapping the time on the Apple Watch once does nothing. Is it broken?** A. This is by design (v1.0.2 and later). A single tap only wakes the screen and never changes the display or a setting, so you can touch the face lightly during a talk to keep it awake without changing anything. **Double-tap the big time** to switch elapsed/remaining, and **triple-tap the chip at the top** to toggle Air Swipe. The slide buttons take a single tap. With Wake Duration set to 70 seconds, the watch stays awake for 70 seconds after a touch; the falling buzz on your wrist is your cue to tap once. ### Receiver (Mac) **Q. Where can I get the PreGuru Receiver app?** A. Download it from the guidance on this site. It's a free app that lives in the menu bar. **Q. I can't advance slides (keys don't work).** A. Allow PreGuru Receiver in System Settings → Privacy & Security → Accessibility. Keys are sent to the frontmost app (Keynote/PowerPoint/PDF, etc.). If another window is active instead of your slide window, click the slide window to select it. **Q. My iPhone can't find the Mac.** A. Put the iPhone and Mac on the same Wi‑Fi and launch the Receiver. If it isn't found, enter the IP and Port shown in the Receiver panel into the iPhone's manual IP field to connect. ⭐ If **direct IP connects but automatic discovery does not**, the iPhone's discovery (Bonjour) has got stuck. **Restart the iPhone** and it comes back — we have seen this on real hardware. There is no need to reinstall the app. The tell-tale sign is that Mac and Windows both stop being found at the same time. **Q. Which presentation apps are supported?** A. Presentation software that accepts arrow-key navigation is supported, including Keynote, PowerPoint, Google Slides, Canva, Prezi, and PDFs. Keep your presentation in the foreground and focus the presentation view in your browser. Key behavior varies by app and mode, so check your actual setup before presenting. **Q. How do I quit or keep the Receiver running?** A. It lives in the menu bar (not the Dock). Quit it from the menu's "Quit app." Quitting stops reception. **Q. Which macOS is supported?** A. Recent macOS versions in general (we'll announce specific versions at distribution). ### Receiver (Windows) **Q. About the Windows Receiver** A. The Windows version is now an official release (v1.1.0), with the same features as the Mac version (v1.1) and signed with the transistors Co., Ltd. code-signing (Authenticode) certificate. It is an ~48MB .exe installer with .NET 8 bundled (no separate install). **Q. Where do I get and how do I launch the Windows Receiver?** A. Download the .exe installer from the guidance on our site and run it (.NET 8 is bundled, so no separate install is needed). After installing, launch it from the Start menu. **Q. At launch I see "Windows protected your PC" (SmartScreen).** A. An unsigned exe can trigger the warning. Click "More info" → "Run anyway." The official release will use code signing to suppress the warning. **Q. I can't connect / my iPhone can't find it.** A. On first launch, choose "Allow access" in the Windows Firewall prompt. Put the iPhone and PC on the same Wi‑Fi; if it isn't found, enter the IP and Port (default 53251) from the panel into the iPhone's manual IP field. ⭐ If **direct IP connects but automatic discovery does not**, the iPhone's discovery (Bonjour) has got stuck. **Restart the iPhone** and it comes back — we have seen this on real hardware. There is no need to reinstall the app. The tell-tale sign is that Mac and Windows both stop being found at the same time. **Q. I can't advance slides (note on administrator rights)** A. If PowerPoint, etc., runs with administrator rights, key input from this non-admin app may not reach it (UIPI). Run both at the same privilege level (normal launch). **Q. How do I keep it in the tray or quit it?** A. It lives in the system tray. The window's × minimizes to the tray; quit from the tray menu or "Quit app." You can also set it to launch at startup. **Q. Can I use pairing?** A. Yes. Turn on "Require pairing" to allow control only from a device with the matching 4‑digit code (same as the Mac version; optional). **Q. Which Windows is supported?** A. Windows 10/11 (the .NET 8 runtime is required; the bundled build doesn't need it). ──── [Last resort contact] You made it this far. Only if the FAQ, the PDF manual, and the AI assistant have all failed, please use the contact form (as the Receiver is free, a reply is not guaranteed and may take time; include your symptoms, device and OS): https://www.transistors.co.jp/preguru-support-en/ --- *PreGuru — Present with Apple Watch. Developed by Transistors.* *This file is distributed so that a generative AI can support you. Screens and details may differ slightly from the latest release.*