Nasu — Private Transcription
iOS Universel / Utilitaires
Nasu turns your conversations, sessions, and voice notes into clean, searchable text — and everything happens on your device. No cloud processing, no account, no subscription servers. Nothing you record ever leaves your hands.
Built for people whose recordings are genuinely confidential: therapists and counselors, physicians, lawyers, researchers, journalists — and anyone who thinks a voice note shouldn't be someone else's training data.
PRIVATE BY ARCHITECTURE • Transcription runs entirely on-device, powered by state-of-the-art on-device speech models • Works fully offline — airplane mode is a feature, not a limitation • No account, no sign-up • iCloud sync is strictly opt-in and off by default; analytics can be turned off with one switch
A CALM, FOCUSED TOOL • Record and transcribe live, transcribe as you record, or import audio files • Clean transcripts: filler words ("um", "uh") removed automatically — reversibly • Custom vocabulary: teach Nasu the names, medications, and specialist terms it should get right • Folders, tags, and full-text search turn recordings into a knowledge base you can actually find things in • Timestamps you can toggle, an audio player to check the source, and titles that write themselves
YOUR NOTES, YOUR FORMAT • Export as formatted PDF or Markdown, or copy plain text straight into your notes system • Share audio in from any app
MADE FOR ALL YOUR DEVICES • Native on iPhone and iPad, with a side-by-side library and transcript view on larger screens • Runs on Apple silicon Macs • Choose your model: Fast, Balanced, or Accurate — depending on your device and your patience
LANGUAGES English, French, German, Italian, Portuguese, and Spanish — carefully validated rather than promised. Automatic language detection and translation to English included.
Your words are yours. Nasu just writes them down.
Quoi de neuf dans la dernière version ?
Nasu 4.0 is a ground-up redesign.
• A new calm interface, in light and dark, built for focus
• Native iPad support with a side-by-side library and transcript view
• Folders, tags, and full-text search across all your transcripts
• Custom vocabulary: teach Nasu the names and terms it should get right
• Export formatted PDF and Markdown
• Cleaner transcripts with automatic filler-word removal
• Privacy, tightened: iCloud sync is now strictly opt-in (off by default), and analytics can be disabled
• A new icon to match
As always: transcription happens entirely on your device. Nothing you record ever leaves it.
