SOTTO
Voice recorder · Speech to text · AI notes

Speak softly.
Keep every word.

Sotto records, transcribes and summarises your meetings, lectures and ideas — entirely on your phone, even offline.

Get it on Google Play
●  Your recordings and transcripts never leave your phone.
What it does
01

Record without limits

Background recording, noise filter, one-tap moments, a home-screen widget and a Quick Settings tile.

02

Offline speech to text

Live text while you speak, a timestamp on every line, tap to jump to the audio. English, Vietnamese and many more languages.

PRO
03

AI summaries

Overview, key points, decisions and action items — tuned for meetings, lectures, interviews and client calls.

PRO
04

Ask your recording

Ask a question, get an answer that cites the exact moment. Smart chapters for long sessions.

PRO
05

Speaker labels

See who said what, rename speakers, and switch to the accurate model for difficult audio.

PRO
06

Studio Clean & export

Remove background noise and compare before/after. Export TXT, SRT, DOCX, PDF and Markdown.

Private by design

Speech recognition and the AI model run on your device. Audio, transcripts and summaries are never uploaded — not to us, not to anyone. Lock sensitive recordings in the encrypted Vault.