Free
$0
forever, open source
DownloadPricing
Today there is exactly one thing to pay: nothing. The full application is open source and free, with no limits. The two below are the sync service — not built yet, not for sale, and listed here so you know in advance what would ever cost money and what never will.
Sync
—
end-to-end encrypted, across your devices
Tell me when it existsTeam
—
for organisations
Get in touchThirty seconds is enough to tell
Install it like anything else. The first time it opens, Summo measures your machine and suggests a model — and records nothing until you press record.
No window needed?
On macOS, the first time
xattr -dr com.apple.quarantine /Applications/Summo.app
Installed? Open it in English
It applies to the first run only, and never overrides a language you picked yourself. Change it any time in Settings.
Download it and record one meeting
Free, open source, no account. If it does not suit you, deleting one folder is the whole uninstall.
Questions people ask
"The audio never leaves" — how would I check that?
Three ways. One: the source is open, recognition lives in crates/summo-asr, and there is no HTTP client in it. Two: unplug the network and record — everything still works. Three: firewall the app and the transcript is unchanged. Only summarising and answering questions need the network, and the settings screen states whether the endpoint you chose is local or remote.
Does a bot have to join the call?
No. Summo captures your microphone and your system audio directly, so it works with Zoom, Meet, Teams, a phone call, or people in a room — anything your machine can hear.
How accurate is Vietnamese?
2.4% WER on Fleurs VI with the gipformer-65M model. But Fleurs is clear read speech; a real meeting is much harder, and we have not published a number for real meetings because there is no hand transcript to check against yet. When there is, it will sit beside this one.
Does translation run locally?
Yes. As of this version, translation into 46 languages runs on a model inside the app — no Ollama, no network. Only summarising and question-answering call a language model, and you choose that endpoint.
What if my machine is slow?
On first launch Summo measures it for fifteen seconds and picks a pair of models to match. The default Vietnamese model is 73 MB and runs 9× faster than realtime on four CPU cores — no GPU.
Where is my data?
A folder of Markdown in your application data directory. Open it in Obsidian, grep it, put it in git. Audio is stored as Opus and deleted after 30 days by default while the transcript is kept — both configurable.
How can it be AGPL and still be a business?
The app and the core are AGPL-3.0, so nobody can take it and run a closed service on it. What would be paid for later is the sync service, which lives in its own repository and is not needed to run the app. A company that needs to be free of the AGPL buys a commercial licence.