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Other caption apps want your video.
Sound Off doesn't.
Compared to the most popular caption apps on the App Store, Sound Off is the only one that collects nothing. Every column below comes from each app's own privacy label.
| App | Tracks youacross other apps | Collects your video"User Content" | Collects any data | Price |
|---|---|---|---|---|
| Sound Off CaptionsJoylord Systems LtdPrivacy policy ↗ | No | No | None · "Data Not Collected" | One‑time |
| CapCut: Photo & Video EditorByteDance Pte. LtdPrivacy policy ↗ | Yes | Yes | Yes · 5 types | Subscription |
| Mojo: AI Video & Reels EditorArchery Inc.Privacy policy ↗ | Yes | Yes | Yes · + search history | Subscription |
| Auto Captions: Video SubtitlesFitness LabsPrivacy policy ↗ | No | No | Yes · 2 types | One‑time |
| Captions: AI Edits Your VideoCaptions, LLC (Mirage)Privacy policy ↗ | Yes | Yes | Yes · + biometrics* | Subscription |
| VEED Shorts: AI videosVEED LtdPrivacy policy ↗ | Yes | No | Yes · 4 types† | Subscription |
We're not going to overstate it. One of these, Auto Captions by Fitness Labs, doesn't track you and is a one‑time purchase too. And CapCut does far more than captions; it's a full editor. But across all of them, Sound Off is the only one that collects no data at all, and the only one that does the whole job (transcription, styling, export) without your video ever leaving your iPhone.
* Captions' own privacy policy says it may "generate biometric information from your face or voice" and use content "to train our artificial intelligence/machine learning models." See the deep dive below.
† VEED's policy says content uploaded by free‑tier users may be used to "train and develop" its AI models; paid users are excluded.
Go deeper
Sound Off vs CapCut What CapCut's terms and privacy label actually say, and why the FBI says to read them first. Sound Off vs Captions Captions' own policy says it may generate biometrics from your face and train its AI on your videos. Sound Off vs Mojo Mojo's own policy lists the AI servers your video gets sent to, including one in China.Keep your videos to yourself.
On‑device transcription, twelve caption styles, a one‑time purchase. Your video never leaves your iPhone.
How this was sourced
Tracking and data‑collection columns are taken from each app's App Store privacy label ("App Privacy", captured June 2026): the developer's own declaration to Apple. The price column reflects only whether an app is a one‑time purchase or a subscription. Biometric and AI‑training notes are quoted from the apps' own published privacy policies. We've limited the table to caption apps with over 1,000 App Store reviews. Labels can change; figures reflect June 2026.