subMatik vs CapiCap
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
subMatik
This app transforms your iPhone into a subtitle creation studio. It automatically generates accurate, timed captions for any video or audio file directly on your device, supporting over 70 languages. You can also translate existing captions or burn them directly into your video for easy sharing.
- On-device AI transcription
- 70+ language support
- Context-aware translation
- Vertical-friendly subtitle placement
- Burn-in subtitles to video
- SRT and MP4 export
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subMatik turns your iPhone into a complete subtitle studio. Drop in any video — vertical Reels, horizontal interviews, podcast audio — and get clean, timed captions in seconds. Transcription, burn-in, and export run on-device; translation is on-device with Apple Translation, or via Google/DeepL if you choose. WHAT MAKES SUBMATIK DIFFERENT • 100% on-device transcription via the Whisper speech model (WhisperKit). Your audio never touches a server. • 70+ languages supported, including Turkish, Chinese (Simplified + Traditional), Japanese, Korean, Thai, Khmer, Lao, Burmese, and more. • Context-aware translation. Each segment is translated alongside its neighbors so idioms and homonyms come out right. • Vertical-friendly subtitle placement. The Position Picker has a 3×3 anchor grid + drag-to-tune fine adjustment over a real frame from your video — no guessing. • Reels mode. Chops cues into 1–5 word bursts that read fast on phone screens. • Burn subtitles into the video pixels. Export an MP4 with captions baked in, ready for Instagram / TikTok / YouTube Shorts. Save directly to Photos. • Re-translate any existing SRT into a new language without re-running Whisper. • Files-app integration. Right-click any video → "Open in subMatik" → ready to caption. • No account, no ads, no analytics dragnets. Optional anonymous crash telemetry via Apple MetricKit only. WHY ON-DEVICE MATTERS Modern Whisper models run entirely on your iPhone. There's no reason to upload your private conversations, family videos, work recordings, or proprietary content to someone else's server just to get subtitles. subMatik proves that the highest-quality transcription can be the most private one too. OUTPUT FORMATS • SRT (universal, supported everywhere) • Burned-in MP4 (subtitles in pixels, no separate file needed) PRO TIPS • "Upper third" position preset keeps subtitles clear of TikTok / Reels bottom UI. • Long-press any file in the queue to set a custom subtitle anchor just for that clip. • DeepL users: paste your API key in Settings for higher-quality translations on European languages. • On first launch you choose a Whisper model — from a fast ~150 MB option up to the highest-accuracy one. It downloads once (use Wi-Fi). After that, transcription is fully offline. REQUIRES iOS 26.0 OR LATER. Works on iPhone 11 and newer. Best experience on iPhone 14 Pro and newer. PRIVACY POLICY: https://catheadai.com/submatik/privacy
CapiCap
Easily add subtitles to your videos with automatic, on-device transcription in over 99 languages. Edit and style captions with various options, then export your video with burned-in captions or as an SRT file. Enjoy privacy as nothing leaves your device.
- Automatic on-device transcription
- Supports 99+ languages
- Built-in caption editor
- Customizable caption styling
- Export with burned-in captions
- Export as .srt file
- Works offline
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CapiCap adds subtitles to your videos in 99+ languages — automatically, and 100% on your device. No watermarks. No ads. No subscriptions. No account. No tracking. Nothing you make ever leaves your device. Pick a video and CapiCap transcribes it locally using a state-of-the-art on-device speech model. No upload, no server, no waiting in a queue, and once the model has downloaded it works offline. HOW IT WORKS 1. Pick a video from your library or the Files app, share one in from another app, or on iPad, iPhone Duo and Mac drop it anywhere on Home. 2. CapiCap transcribes it on-device, faster than real time on a recent iPhone, iPad or Mac. If it isn't sure which language is spoken, it asks instead of guessing. 3. Fix any words in the built-in editor. While you type, a bar above the keyboard plays the video and hops between captions. 4. Style your captions — start from twelve ready-made looks, then fine-tune fonts, weight, outline, colors, shadows, backgrounds, animation, size and position. Light up each word as it's spoken, show one word at a time, or set the caption behind the person on screen. Save your favorites as your own looks. 5. Export a new video with the captions burned in, ready to share. Prefer a subtitle file? CapiCap also exports a standard .srt you can use anywhere. WHY CAPICAP - Private by design. Transcription happens entirely on your device — your videos and words are never uploaded. - Works offline. No signal, no problem. Everything runs locally. - Understands 99+ languages. CapiCap recognizes the language of your video automatically, or you can pick it yourself. - iPhone, iPad and Mac, one app. On iPad, Mac and an open iPhone Duo the editor gets room to breathe: a big preview with the whole caption list beside it. - No watermarks, ever. Your exports are clean. - Original quality. Exports keep your video's resolution, frame rate and bitrate, 4K60 included. Nothing is downscaled, and the sound is copied as is. - Simple styling that looks good straight out of the box. LIFETIME ACCESS CapiCap is free to download, and your first 3 exports every month are on us. Want more? Lifetime access unlocks unlimited exports with one purchase — never a subscription. REQUIREMENTS Requires iOS 17 or later on iPhone and iPad, or macOS 14 or later on a Mac with Apple silicon (M1 or later). The speech model downloads on first launch, and another only if a video's language needs it. Works best on iPhone 14 Pro or newer, on iPad with an M-series chip and on the Mac, which transcribe faster than real time.
Screenshots
Verdict
The clearest difference is in-app purchases: subMatik at none against CapiCap's 1. subMatik also leads on rating (5.0 vs 4.6). CapiCap's advantage is update cadence (every 6 days vs every 3 weeks) and ratings volume (13 vs 1). On price, ads 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. CapiCap sells 1 one-off in-app purchase. subMatik asks for nothing beyond the download.
subMatik holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: CapiCap has 13 ratings behind it against 1, so its average is the more settled of the two.
subMatik ships an update every 3 weeks, CapiCap every 6 days. Both last shipped on November 5, 2026.
| Parameter | subMatik | CapiCap |
|---|---|---|
| Price | Free | Free |
| Rating | 5.0 (1 ratings) — better | 4.6 (13 ratings) |
| Positive reviews | — | 100.0% of reviews |
| Number of ratings | 1 | 13 — better |
| Update frequency | Every 3 weeks | Every 6 days — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Free — better | Free with in-app purchases |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 26.0 | 17.0 — better |
| Further details — not scored | ||
| Size | 7 MB | 20 MB |
| Age rating | 4+ | 4+ |
| Developer | Sevki Bugra Ozbek | Oleksandr Brazhii |
Customer experience
subMatik
CapiCap
In-app purchases
subMatik
No in-app purchases
CapiCap
- Lifetime access$9.99









