Aiko

Aiko is for people who care where their recordings go. Everything happens on your device using an open speech model, so there's no account and nothing is uploaded. That makes it a calm choice for personal voice notes, private interviews (ask first if you're recording someone) or anything you'd rather keep to yourself.

It takes its time. Aiko doesn't transcribe live while you record, and you need to keep the app open while it works through a file. On a Mac it uses a larger model, which the listing says gives better results. When it's done, you can export the text as subtitles.

It is deliberately simple. There's no speaker detection and no in-app editing, though you can set word replacements to fix names it keeps getting wrong. If you want summaries or meeting features, look elsewhere. If you want private text from a recording, it's a strong pick.