Floating Teleprompter

 

🎥

Build a "Video Teleprompter" App in 15 Minutes

If you have ever tried recording a YouTube Short, TikTok, or client presentation while memorizing lines, you know the struggle: looking away from the camera lens ruins the shot, and stumbling requires endless re-takes. Dedicated hardware rigs are expensive, but your phone screen is already right next to the lens. Today, we will build a full-featured, auto-scrolling teleprompter app from scratch using AI—no coding experience required.

🎮 Test & Inspect the Prototype

If you want to see the code, copy the code for your own project it's at GitHub, click the View code buttons.

To download and use the app created using AI at Google AI Studio use the Google Play link for testing by clicking the Download to Android Button.  Note:  The interface may different and match your device's default styling.

Video Preview → Download to Android →

💡 The Opportunity: Why Build This?

• The Problem: Physical teleprompter setups cost hundreds of dollars, while most mobile app alternatives lock basic functions—like adjusting scroll speeds or mirroring text—behind predatory monthly subscriptions.
• High-Intent Search Traffic: Millions of creators regularly search for focused terms like "teleprompter for video," "scrolling script prompter," "TikTok script reader," and "video text reader."
• High Daily Utility: Content creators produce multiple videos weekly. Once this tool is part of their production routine, they open it every time they hit record, driving consistent, long-term retention.

🎯 How the App Works

The workflow is built for zero hassle during production so creators can focus entirely on their delivery:

1. Script Staging: The user pastes their talking points or entire script into a clear, distraction-free text editor.
2. Full-Screen Prompter View: Tapping "Start Prompting" switches the screen to a high-contrast dark canvas (pure black background with bold white typography) to maximize readability under studio lights.
3. Smooth Auto-Scroll: Text glides smoothly upward from bottom to top at a steady framerate without stuttering.
4. Real-Time Controls: Floating, low-profile overlay controls let users fine-tune font sizing and scrolling speed on the fly, plus a Mirror Mode toggle that flips the text horizontally for beamsplitter glass rigs.

🤖 The Magic Prompt (Copy & Paste)

Copy the complete prompt below into your AI builder (such as Google AI Studio, Bolt.new, or Cursor) to generate the Android project:

Write a native Android app in Kotlin using Jetpack Compose. Build a clean, production-ready video teleprompter utility app for mobile creators. Core Requirements: 1. Setup Screen: - Provide an expandable multiline TextField where users can type or paste a script. - Include sample placeholder text so first-time users can immediately test the experience. - Add a prominent 'Start Prompting' button to transition into prompt mode. 2. Prompter Screen (Full-Screen Immersive): - Pure black background (#000000) with crisp white text for high-contrast visibility. - Implement an automated vertical scrolling engine that moves text upward at a smooth, continuous rate. - Ensure adjusting the speed slider updates velocity dynamically without resetting scroll progress back to the top. 3. Floating Overlay Controls: - Floating 'Play / Pause' toggle button to pause speech and resume seamlessly. - 'Speed Slider' (pixels per second) to match natural conversational cadence. - 'Font Size Slider' (ranging from 18sp to 48sp) to ensure legibility from a distance. - 'Mirror Text' toggle switch (applies a horizontal scaleX = -1f flip) so the screen can be reflected into physical teleprompter glass rigs. 4. Robustness: - Keep the device screen awake while prompting mode is active (FLAG_KEEP_SCREEN_ON). - Entirely offline with no mandatory user accounts or cloud requirements.

🚀 Beginner 4-Step Launch Checklist

Step 1: Test Scroll Stability 🔍

Paste a 500-word sample script into the preview emulator. Start auto-scrolling, then drag the speed and font-size sliders back and forth. The text must remain at its current reading position rather than snapping back to line 1. If it resets, instruct your AI: "Preserve the active scroll offset when recomposing or adjusting speed and font size."

Step 2: Export the Build Bundle 📦

Export your completed app as an Android App Bundle (.aab) file so Google Play can optimize downloads for every device screen size.

Step 3: Target Creators in Your Listing ✍️

Gear your store listing directly toward video creators. Include screenshots featuring bold, scannable script text and highlight keywords like "Teleprompter for Video," "TikTok Script Prompter," "YouTube Vlog Reader," and "Mirror Rig Mode."

Step 4: Upload and Publish 🎉

Upload your .aab package to the Google Play Console, confirm your data declarations (highlighting zero data collection and 100% offline usage), and submit your app for review!