Subly — AI subtitles on device

Subly turns speech into subtitles right on your iPhone — no cloud, no uploads, no account. Import a video, get an accurate transcript in seconds, style the captions, and export a video with subtitles burned in. Add subtitles to video offline. Transcribe speech to text in 100+ languages. Turn talking clips into captioned Reels, Shorts, Stories, TikToks, lessons, interviews and vlogs — most people watch with the sound off, and captions are what keeps them watching. HOW TO ADD SUBTITLES TO A VIDEO 1. Import a video or an audio file from Photos or Files, or share it into Subly from any app. 2. Subly transcribes the speech on device with Whisper AI. 3. Edit the text, fix the timing, pick a caption style. 4. Export a video with burned-in subtitles, or an SRT / VTT / TXT file. 100% ON-DEVICE, 100% PRIVATE • Offline subtitle generator — after one model download, no internet needed • Video and…