Sound Off Captions

Captions for vertical video

Only for iPhone

Free · In‑App Purchases · Designed for iPhone. Not verified for macOS.

iPhone

Two new paragraph caption styles built for talking-head and podcast clips. Show full sentences on screen, not one word at a time. Sound Off adds stylish, animated captions to vertical video, entirely on your iPhone. Open a clip from Photos, and Sound Off transcribes the audio on the device, picks a caption style with you, and writes the finished captioned video back to Photos - ready to post to TikTok, Reels, YouTube Shorts, or anywhere else you share to. Twelve caption styles, including word-by-word animation and full-paragraph captions. No account, no upload, no subscription. WHAT YOU GET • On-device transcription. Sound Off uses Apple's on-device speech model. Your videos, audio, and transcripts stay on the iPhone. • Twelve animated caption styles. Word-by-word styles like Pop Yellow, Karaoke, Classic, and Bounce Bold animate each word as it's spoken. New paragraph styles Reader and Editorial show the whole sentence on screen, with the spoken word highlighted, for talking-head and podcast clips. • Word-level editing. Tap any word to fix a transcription mistake, split or merge phrases, mark where a paragraph ends, or emphasise a word. • Native iPhone export. Save the finished captioned video to Photos in seconds, or send it straight through the share sheet. ON-DEVICE, BY DESIGN Sound Off has no account, no sign-in, and no analytics SDK. We don't track you, and we can't see your videos. The "Data Not Collected" label on this listing is the whole story. ONE-TIME PURCHASE Sound Off is free to try. Free exports carry a small watermark. A one-time unlock removes the watermark and opens the full caption style catalogue. The same purchase works on every iPhone signed into your Apple ID. REQUIREMENTS iPhone 12 or newer, running iOS 26 or later. Vertical, portrait video up to 90 seconds. English audio only (more languages coming). SUPPORT Email support@soundoffcaptions.app or visit soundoffcaptions.app/support.html

Ratings & Reviews

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Two new caption styles built for talking-head and podcast clips. Reader is calm and readable: a clean sentence on screen with the spoken word underlined. Editorial is bolder: the spoken word jumps to a heavy weight, like a magazine headline. Both show the full sentence at once instead of one word at a time, so viewers can read ahead. Also in 1.1: • Long words now auto-shrink so nothing gets clipped. • The style picker is grouped into Free, Word-By-Word, and Paragraph sections. • Exported files read as clip-name-style.mov so they're recognisable in Files and AirDrop.

Version 1.1

The developer, Joylord Systems Ltd, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .

  • Data Not Collected

    The developer does not collect any data from this app.

    Privacy practices may vary, for example, based on the features you use or your age. Learn More

    Accessibility

    The developer has not yet indicated which accessibility features this app supports. Learn More

    Information

    Seller
    • Joylord Systems Ltd
    Size
    • 85 MB
    Category
    • Photo & Video
    Compatibility
    Requires iOS 26.0 or later.
    • iPhone
      Requires iOS 26.0 or later.
    • Mac
      Requires macOS 26.0 or later and a Mac with Apple M1 chip or later.
    • Apple Vision
      Requires visionOS 26.0 or later.
    Languages
    • English
    Age Rating
    4+
    In-App Purchases
    Yes
    Copyright
    • © 2026 Joylord Systems Ltd
  • Developer Website
  • Privacy Policy

    • More by Joylord Systems Ltd

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