# Voice-Activated Teleprompter for iPhone: Text That Follows Your Voice By Andrii Gnasevych · Published 11 November 2026 · Source: https://www.a-devgroup.com/teleprompter/voice-activated-teleprompter-iphone/ **Short answer.** A voice-activated (voice-follow) teleprompter listens to you read, matches your words to the script and scrolls only as fast as you speak. It waits when you pause and lets you improvise. On iPhone, the better ones do the recognition on the device. Disclosure: I build [Teleprompter Offline & Private](https://apps.apple.com/ua/app/teleprompter-offline-private/id6808964093?pt=128162591&ct=web_voice_activated_teleprompter_iphon&mt=8). Details of how it works are from my own app. ## Steps 1. **Paste your script.** Create a script and paste the text. The app detects its language. 2. **Set size and reading line.** Enlarge the text and move the reading line close to the camera. 3. **Turn on voice-follow.** Start reading. The app listens through on-device speech recognition and matches your words to the script. 4. **Read naturally.** The text scrolls when you speak and waits when you pause. Skip a line or improvise, and tap once to take manual control. 5. **Adjust sensitivity.** If it moves too eagerly or lags, change the voice sensitivity. Advanced sensitivity is part of Pro. ## Voice-follow or fixed speed? **Fixed speed** scrolls at a words-per-minute rate you set. It is predictable and good for short, rehearsed reads. **Voice-follow** adapts to you, which suits long scripts, interviews and anyone who ad-libs. See [how fast a teleprompter should scroll](https://www.a-devgroup.com/teleprompter/how-fast-should-a-teleprompter-scroll/) for pace numbers. ## How it works The recognizer returns a stream of partial transcripts. The app aligns them with the script using a fuzzy match over a window of words ahead of your position, because people skip words and recognizers mishear. It limits how far the text can move per update so one noisy match cannot make it lurch. Read the engineering story in [Building a voice-follow teleprompter on iPhone without sending audio anywhere](https://dev.to/andrew_gnasevych_eceaa0ef/building-a-voice-follow-teleprompter-on-iphone-without-sending-audio-anywhere-2gj9). ## Limits to know about - Noisy rooms and music in the background reduce accuracy. - Some languages need an iOS offline speech pack, downloaded once. - Heavily improvised sections can confuse any matcher; tap to go manual. - If the audio stream drops during recording, the app falls back to a steady scroll and keeps recording. ## Works in other languages The app detects the language of your script (English, Spanish, German, French, Italian, Portuguese and more) and uses on-device recognition for it. ## Screenshots ![Animated clip of a teleprompter app on iPhone: large white script text scrolls upward at 140 words per minute above a bar with playback controls](https://www.a-devgroup.com/teleprompter/assets/img/teleprompter-app-scrolling-script-demo.gif) *The script scrolls at a steady pace while you read.* ![Teleprompter screen on iPhone with large white script text, a yellow reading-line marker near the top, a words-per-minute slider and a play button](https://www.a-devgroup.com/teleprompter/assets/img/teleprompter-app-reading-line-wpm-controls.jpg) *Keep the reading line close to the camera lens.* ## FAQ ### What is a voice-activated teleprompter? A teleprompter that listens as you read and scrolls the script to match your speech, instead of moving at a fixed speed. ### Does the teleprompter send my voice to a server? In Teleprompter Offline & Private, speech recognition runs on the iPhone. If a language has no on-device model, the app says so instead of using a server. ### What if I skip a line or improvise? Voice-follow usually catches up. You can also tap once to take manual control at any time. ### Can I record video while the text follows my voice? Yes. Recording up to 1080p in portrait or landscape works with voice-follow. App Store: https://apps.apple.com/ua/app/teleprompter-offline-private/id6808964093?pt=128162591&ct=web_voice_activated_teleprompter_iphon&mt=8 Teleprompter Offline & Private: https://www.a-devgroup.com/teleprompter/ ## Related guides - [How to use a teleprompter on iPhone](https://www.a-devgroup.com/teleprompter/how-to-use-a-teleprompter-on-iphone/) - [How fast should a teleprompter scroll](https://www.a-devgroup.com/teleprompter/how-fast-should-a-teleprompter-scroll/) - [Offline teleprompter app for iPhone](https://www.a-devgroup.com/teleprompter/offline-teleprompter-app/) - [Teleprompter gratis para iPhone (español)](https://www.a-devgroup.com/teleprompter/teleprompter-gratis-iphone/) - [Teleprompter app for YouTube videos](https://www.a-devgroup.com/teleprompter/teleprompter-for-youtube/) - [Teleprompter for speeches and presentations](https://www.a-devgroup.com/teleprompter/teleprompter-for-presentations/) - [Mirror mode teleprompter for beam-splitter rigs](https://www.a-devgroup.com/teleprompter/mirror-mode-teleprompter-app/) - [Bluetooth remote for an iPhone teleprompter](https://www.a-devgroup.com/teleprompter/bluetooth-remote-teleprompter-iphone/) - [Teleprompter App kostenlos für iPhone (Deutsch)](https://www.a-devgroup.com/teleprompter/teleprompter-app-kostenlos-iphone/) - [Best teleprompter apps for iPhone, compared](https://www.a-devgroup.com/teleprompter/best-teleprompter-apps/) - [Teleprompter Offline & Private (app page)](https://www.a-devgroup.com/teleprompter/)