CaptionAddr vs Sound Off Captions
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
CaptionAddr
Create professional video captions directly on your iPhone. This app offers local transcription, frame-level editing, and extensive customization options for fonts, styles, and timing. Export polished videos ready for social media without needing desktop software or cloud uploads.
- Local video transcription
- Frame-perfect caption timing
- Customizable caption appearance
- Burn-in caption export
- No desktop software required
- Pro version for longer videos and premium fonts
Read full descriptionHide full description
CaptionAddr makes clean, frame-aligned single-word captions for videos on iPhone and iPad. Choose one clip, transcribe it on your device, refine any word, style the captions, and export a finished video ready to share. Your video, audio, transcript, caption edits, and export are not uploaded to CaptionAddr or our services. BUILT FOR SHORT-FORM VIDEO • Single-word captions snapped to your video’s frame rate • Local Whisper Small English transcription • Edit, delete, and reorder individual words • 20 caption fonts with size, position, and tinted-background controls • Clean burned-in video exports that work anywhere • No account required • No ads or cross-app tracking FREE • Import, caption, edit, and export videos up to 2 minutes • Full local transcription and caption editor • Clean exports with no required watermark CAPTIONADDR PRO • Everything in Free • Import and export videos up to 30 minutes CaptionAddr Pro Monthly renews monthly unless canceled at least 24 hours before the end of the current period. A 3-day introductory offer may be available to eligible new subscribers. The App Store shows final local pricing and eligibility before purchase. Privacy Policy: https://captionaddr.com/privacy/ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Service Terms: https://captionaddr.com/terms/
Sound Off Captions
Read full descriptionHide full description
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 and Spanish audio (more languages coming). SUPPORT Email support@soundoffcaptions.app or visit soundoffcaptions.app/support.html
Screenshots
Verdict
The clearest difference is update cadence: Sound Off Captions at weekly against CaptionAddr's monthly. CaptionAddr's advantage is iOS requirement (17.0 vs 26.0). On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. CaptionAddr sells 1 in-app purchase, starting at $6.99 per month and Sound Off Captions sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
CaptionAddr ships an update monthly, Sound Off Captions weekly. The most recent releases landed on October 3, 2026 and October 4, 2026 respectively.
| Parameter | CaptionAddr | Sound Off Captions |
|---|---|---|
| Price | Free | Free |
| Rating | 4.6 (7 ratings) — better | — |
| Positive reviews | 75.0% of reviews | — |
| Number of ratings | 7 — better | — |
| Update frequency | Monthly | Weekly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | — |
| Devices | iPhone, iPad — better | iPhone |
| Requires iOS | 17.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 476 MB | 81 MB |
| Age rating | 4+ | 4+ |
| Developer | DYNSELL LLC | Joylord Systems Ltd |
In-app purchases
CaptionAddr
- CaptionAddr Pro3 Days trial$6.991 Month
Sound Off Captions
- Pro Unlock$14.99
Questions
Is CaptionAddr free?
Is Sound Off Captions free?
Do CaptionAddr or Sound Off Captions have ads?
Which is updated more often, CaptionAddr or Sound Off Captions?
Other comparisons















