Project 02 / 04 · 2026

Readrail

A free Android teleprompter, with no watermark and no limits, that follows the reader’s voice.

Publisher
byohan, in-house app
Year
2026
Services
Android app · Offline voice tracking · Video recording · In-app purchase
Stack
  • Kotlin
  • Jetpack Compose
Google Play
Readrail’s editor open on a pitch script, saved and ready to read.
Readrail’s script list, each script with its own play button.
Readrail’s prompter while reading, white text on black, with the amber eye line.

Behind the scenes

Drag anything, or move it with the arrow keys

  • primary #4355B9
  • inverse-primary #BAC3FF
  • reading-line #FFB300
  • prompter #000000
  • surface-dark #1B1B1F
  • background #FEFBFF
Readrail’s Google Play banner, with the app icon and the promise “Free. No watermark. No limits.” in French.
Prompter settings, from text size to the position of the eye line.

Key idea

Free, no watermark, no limits.

The brief

On the Play Store, many teleprompters add a watermark to the video, cut long texts or ask for a subscription. Readrail does the essentials for free, with no account and no ads, and keeps scripts on the phone.

01 · The text follows the voice

Speech recognition runs on the phone. The text moves at the pace of the reading and waits when the reader improvises or repeats a sentence.

02 · Record, or read over another app

The reader records themselves with the text on screen, and it never shows in the video. A floating window also shows it over the camera app or a video call.

Serif

Noto Serif

Bonjour et bienvenue !

Sans

Roboto

Bonjour et bienvenue !

byohan.fr

play.google.com

Reading themes 8

Gradle modules 15

Automated tests 628

Kotlin ✓

Jetpack Compose ✓

Released 2026

App screens

  • Scripts
    • List and search
    • Editor
    • Version history
    • Trash
    • Statistics
  • Prompter
    • Reading
    • Settings
    • Phone remote
  • Recording
    • Camera
    • Subtitles
  • Floating window
  • Settings
    • Readrail Pro
    • About