Subfast: Subtitle & Captions

By Ky Thanh Pham on AppTrack Ninja.

Fast captions, zoom & localize

Subfast adds captions and zoom effects to any video on your iPhone — entirely on-device, without uploading a single byte. Pick a video from Photos or Files. Add caption cues at precise timestamps, type your text, and export as SRT, VTT, or burn them directly into a new MP4. Add zoom moments anywhere on the timeline — a smooth 3-second zoom-in/out animation plays when the video reaches that point. Everything stays on your phone. No cloud, no upload. Sign in with Apple to start your free trial. WHAT YOU CAN DO • Caption any video — MP4, MOV, anything iOS can read • Add caption cues manually — t…

Categories: Photo & Video, Utilities

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