Captions AI Subtitle Generator

Add professional captions to any video — entirely on your device.

AUTOMATIC TRANSCRIPTION

Import a video and let the built-in Whisper AI transcribe speech to text in seconds. Everything runs locally on your iPhone — your videos never leave your device.

WORD-LEVEL KARAOKE HIGHLIGHTING

Watch each word light up as it's spoken with smooth karaoke-style animation. Perfect for social media content that grabs attention.

FULLY CUSTOMIZABLE STYLES

• Choose from beautiful preset styles or create your own

• Adjust font, size, color, background, and position

• Add text animations and effects

• Drag to reposition captions anywhere on screen

PROFESSIONAL EXPORT

• Export in high quality with captions burned into the video

• Import and export SRT subtitle files

• Add your own logo or watermark overlay

• Perfect for Instagram Reels, TikTok, YouTube Shorts, and more

EDIT WITH PRECISION

• Edit transcript text directly

• Split and merge caption segments

• Undo/redo support for worry-free editing

• Copy full transcript to clipboard

100% OFFLINE & PRIVATE

No internet connection needed. No cloud processing. No account required. Your content stays on your device.

https://www.apple.com/legal/internet-services/itunes/dev/stdeula/