subMatik vs AI Video Translator

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

Captioner is an AI video translator: it turns a video in a language you don't speak into one you can watch in your own. Choose a video from your photo library — Captioner transcribes the speech, translates it, and plays the video back with captions in your language, plus an AI summary of what it says. Any language in, any language out: Thai speech to English captions, English to Burmese, Chinese to Vietnamese — every direction works. No account. No editing skills. Start with five free videos. HOW IT WORKS 1. Choose a video from your photo library 2. Choose your language — 100+ supported 3. Watch with translated captions, or skim the AI summary first WHAT YOU GET • AI subtitles — accurate speech-to-text, automatically timed • Translation across 100+ languages: Burmese, Thai, Vietnamese, Indonesian, Malay, Tagalog, Khmer, Lao, plus English, Chinese, Hindi, Japanese, Korean, Spanish and 90+ more • Hardcoded captions? Covered. Captioner reads burned-in captions on screen and shows the translation right under them — the text other video translator apps can't touch • AI summary — know what a video says before you watch it • Library — translated videos stay saved on your device for rewatching WORKS WITH • Videos saved in your photo library • Video files shared directly to Captioner from another app • Only use videos you own or have permission to process PERFECT FOR • Watching foreign-language videos with subtitles in your language • Understanding a video someone sent you, fast — read the summary first • Translating videos for friends and family who speak another language • Language learners who want real subtitles on real videos FIVE FREE VIDEOS Captioner includes five free video translations, no sign-up needed. A Captioner Premium subscription unlocks more translations. It runs on the same engine as captioner.io, our AI subtitle generator and video translator on the web. Your videos are processed securely and never shared. Terms of Service: https://captioner.io/en/terms Privacy Policy: https://captioner.io/en/privacy