Captyra

Create frame‑accurate subtitles from scripts and voice‑overs with private, on‑device AI.

Captyra is the fastest way to turn a script and voice-over into perfectly timed subtitles—entirely on your device. Paste your text, import a narration (or generate a natural voice-over), and Captyra produces precise word timings you can share as SRT or render directly into video with beautiful, readable captions. No accounts. No uploads. Just private, on‑device AI.

• On‑device AI alignment: match text to audio with frame‑level precision
• Script, voice, or audio first: start anywhere and switch anytime
• Generate voice-over from your script with a tap
• Create an editable transcript from recorded audio
• Share clean SRT subtitle files for any editor
• Render burned‑in subtitles to video with optional per‑word highlight
• Mix your selected voice-over into the exported video

Perfect for creators, educators, marketers, and anyone who needs polished subtitles without leaving their phone. Captyra keeps your media local, so your work stays fast, reliable, and private.