AI apps that get your work done.
Sonasi builds AI apps for Mac, iPhone and iPad. Download and start — no account, no setup, and everything stays on your device.
- Zoom
- Google Meet
- Microsoft Teams
- Slack
- Google Drive
- Dropbox
- Apple Notes
Where the work gets stuck
We started the studio because of four complaints we kept hearing from people doing ordinary work on very good machines.
“The answer is in one of these forty files. I just do not know which.”Search finds the word you typed, not the thing you meant — and never in the scanned ones. So the question goes to a colleague, and waits.
“I followed half the call and wrote down a third of it.”Notes get written from memory an hour later, in the wrong language, and the thing that was actually agreed is already in dispute.
“I am not allowed to paste that into a website.”The useful AI tools all begin with an upload. For contracts, patient files or anything under NDA, that is where the tool stops being allowed.
“Another account, another subscription, another place my files live.”Three sign-ups later nobody is sure which service still holds a copy — while the Mac that could have done the work sat idle.
How we solve it with AI
Not a chatbot bolted onto a file list. Each one takes a problem from above — or one you have stopped noticing — runs the model on your own machine, and gives back something you can check.
It reads the pile and shows the page it answered from
Drop in contracts, scans, slides, recordings. The Mac reads them — OCR included — and indexes them by meaning, so a question in English finds the passage in a Japanese or Korean file. Every careful answer names the file and page, so you can check it rather than trust it.
Across languagesCitationsOn-device OCRYou read along while they speak, in your own language
Live transcript and translation side by side in up to 99 languages, or interpreter mode that waits for a whole thought. When the call ends the transcript is cleaned up and summarised: decisions, who owes what, what is still open.
Live translationAction itemsTXT · SRTThe model comes to the file, not the other way round
Reading, search, transcription and translation run on Apple silicon, so a confidential document never has to leave the laptop to be useful. Want a hosted model anyway? Bring your own account — the key sits in the Keychain and the request goes straight to the provider, never through us.
Nothing uploadedWorks offlineYour own keyYour chats, your mail and your to-do list, read by one assistant
Connect Slack and Teams and your mailboxes, and read them beside your notebooks. Agents summarise each thread, translate it both ways so you can talk to anyone anywhere, and sort the mail that can wait from the mail that cannot. Out of all of it they write the tasks, assign them, and remind you before the date rather than after.
Every chat in one windowMail you need not readTasks that find themselvesThe apps that came out of it
One job per app, all on the same on-device foundation.
Sonasi SweepComing soonmacOSA free, open-source Mac cleaner that reads before it deletes. Smart Scan finds reclaimable space across caches, duplicates, large & old files and apps — and everything goes to the Trash, undoable for 30 days. A CleanMyMac alternative.Free
Sonasi NotebookmacOSDrop in PDFs, Office files, web pages and recordings. Search by meaning, ask questions, get answers with the page they came from. Your library stays on your Mac. A NotebookLM alternative.Free
Sonasi MeetingsmacOSiPhoneiPadLive transcription and translation for every meeting — on your Mac, iPhone and iPad, private and on-device.FreeIn-App PurchasesAI that runs on your Apple devices, not on our servers.
Sonasi is small on purpose. We ship small, focused apps, build them the way Apple software is meant to feel, and leave the data where it already is. These are the rules we have not broken yet.
No account needed
Download and start working. An account is only needed if you want to sync across your Apple devices.
Fully offline
The AI model, database, files and settings all live on your machine. Nothing leaves it.
Your own AI keys
Prefer a cloud model? Connect any provider with your own account and API key, without going through us.
Latest writing
Writing about AI — how it works, where it helps, and what we learn building with it.
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