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Whisper Caption

AI Video Captions On-Device

Captions that work for everyone. Whether you're creating content for social media or need captions to understand videos — accurate subtitles in seconds, with zero data leaving your device.

Download on the App Store

Screenshots

Dark style caption editor with karaoke word highlighting on video
Pop style bold uppercase captions with red karaoke highlight box
Caption list editor showing editable transcript segments
Gradient style captions with purple background and word highlighting
Light style captions with black text on white background
Shadow style captions with animated pointing hand emoji
Outline style white text with black outline and target emoji
Settings screen with AI caption enhancement and custom vocabulary options
Gemini AI enhancement in progress improving punctuation and grammar
AI correction review showing before and after transcription improvements

Truly Offline. Truly Private.
Every caption is generated using on-device Whisper AI. No cloud. No uploads. No account required. Want proof? Turn on airplane mode and try it yourself.

Karaoke-Style Highlighting

Watch words light up as they're spoken with smooth, word-by-word highlighting. Perfect for music videos, tutorials, or social content.

Smart Enhancement

Fix transcription errors automatically with Apple Intelligence. Proper punctuation, capitalization, and grammar — all on-device.

7 Beautiful Caption Styles

  • Light - Black text on white background
  • Dark - White text on dark background
  • Gradient - Eye-catching gradient background
  • Pop - Bold uppercase with red highlight box
  • Bold - Uppercase with thick drop shadow
  • Shadow - Clean text with soft drop shadow
  • Outline - White text with crisp black outline

Auto Emoji Generation

Let AI add relevant emojis to your captions automatically for extra engagement. Animated emojis bring your content to life.

Your Data Stays Yours

  • Your videos never touch our servers — because there are no servers
  • Works completely offline
  • No account required. No email. No tracking.
  • Encrypted exports you control

Export & Share

Export your captioned videos and share directly to TikTok, Instagram, YouTube, or any platform. Save to Photos or use the share sheet.

Free + Pro Upgrade

Whisper Caption is free with standard quality exports and a small watermark.

Pro: $4.99 one-time purchase. No subscription. Pay once, own forever.
Unlocks 4K export, watermark-free videos, and all caption styles.

Who It's For

  • Content creators — Add polished captions to TikToks, Reels, and YouTube Shorts in seconds
  • Anyone who needs captions — Make any video accessible when you need to read rather than listen
  • Privacy-conscious users — Keep your personal videos personal
  • Multilingual speakers — Caption content in your language without switching apps
  • Educators and professionals — Make presentations and tutorials more accessible

A Note on What We Don't Do

Whisper Caption focuses on doing one thing well: accurate speech-to-text captions. It does not identify different speakers or describe non-speech sounds. It processes one video at a time. We believe in being upfront about what you're getting.

No Subscriptions. No Cloud. No Compromises.
Download Whisper Caption and add your first captions in under a minute.