AutoCap

AutoCap is a phone-first auto-captioning app aimed squarely at TikTok, Reels, and Shorts creators who'd rather not boot a laptop to add captions to a 30-second clip. The app uses AI transcription to turn spoken audio into captions, then offers a library of fonts, colors, and text animations to style them.

Free use comes with watermarks and minute limits. Pro at roughly $4.99 per month removes the watermark, unlocks the font library, allows longer videos, and exports at higher resolution. Lifetime and annual purchases are available in-app if you don't want a recurring sub.

The value pitch is fair — at five bucks a month it's one of the cheaper premium captioners on iOS and Android, and the record-transcribe-style-export loop is fast on a phone. Multiple languages are supported and the App Store rating is decent.

The honest limitation is accuracy. Reviewers consistently flag captions needing edits, especially with proper nouns or technical jargon, which can offset the speed advantage if you spend three minutes fixing what the AI got wrong.

The font library is also visibly thinner than what CapCut, Submagic, or SendShort offer, and there's no web or desktop client — your phone is the workstation. For someone making one clip a day for their personal social feed, it does the job. For an agency editing a dozen clips in a batch, desktop alternatives win on every axis.