# Teleprompter App With Mirror Mode for Beam-Splitter Rigs

By Andrii Gnasevych · Published 12 November 2026 · Source: https://www.a-devgroup.com/teleprompter/mirror-mode-teleprompter-app/

**Short answer.** A beam-splitter rig reflects a screen in angled glass in front of the lens, so the text appears reversed. Mirror mode flips the text so it reads correctly in the glass. In Teleprompter Offline & Private it is a one-tap toggle.

Disclosure: I build [Teleprompter Offline & Private](https://apps.apple.com/ua/app/teleprompter-offline-private/id6808964093?pt=128162591&ct=web_mirror_mode_teleprompter_app&mt=8).

## Steps

1. **Set up the rig.** Place the phone screen-up so its light reflects in the angled glass in front of the camera lens.
2. **Turn on mirror mode.** Tap the mirror button on the recording screen. The text flips horizontally.
3. **Check the reflection.** Look through the glass: the text should read left to right. If it is reversed, switch mirror mode off.
4. **Adjust size and position.** Enlarge the text and place the reading line close to the lens.
5. **Run a rehearsal.** Read a few lines at your pace, or use voice-follow, and adjust.
6. **Record.** With a separate camera behind the glass, the phone is only the prompt display. You can also record with the app's own camera.

## Why text must be mirrored

A reflection reverses left and right. If you reflect normal text in glass, it reads backwards. Flipping it on the screen first means the reflection reads correctly.

## Other adjustments

- Font size, column width, margins and line spacing are adjustable.
- Dark mode and custom text colors help in a dim studio.
- Bluetooth remotes and keyboards can control it; see [Bluetooth remote teleprompter](https://www.a-devgroup.com/teleprompter/bluetooth-remote-teleprompter-iphone/).

## Screenshots

![Settings screen of a teleprompter app on iPhone with sliders for words per minute, font size, column width, line spacing and reading position, plus a mirror mode switch](https://www.a-devgroup.com/teleprompter/assets/img/teleprompter-app-speed-font-mirror-settings.jpg)
*Pace, text size, reading position and mirror mode are adjustable.*

![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 does mirror mode do in a teleprompter app?

It flips the text horizontally so that, when reflected in beam-splitter glass, it reads correctly.

### Is mirror mode free?

Mirror mode is available to all users in Teleprompter Offline & Private. Check the App Store listing for current Pro features.

### Do I need a special rig?

Mirror mode is for beam-splitter or reflective-glass rigs. If you read directly from the phone screen, leave it off.

### Can I toggle it while recording?

There is a quick mirror button on the recording screen, so you can switch without opening settings.

App Store: https://apps.apple.com/ua/app/teleprompter-offline-private/id6808964093?pt=128162591&ct=web_mirror_mode_teleprompter_app&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/)
- [Voice-activated teleprompter for iPhone](https://www.a-devgroup.com/teleprompter/voice-activated-teleprompter-iphone/)
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- [Bluetooth remote for an iPhone teleprompter](https://www.a-devgroup.com/teleprompter/bluetooth-remote-teleprompter-iphone/)
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- [Teleprompter Offline & Private (app page)](https://www.a-devgroup.com/teleprompter/)