Understand every word. Answer like a native.
Subtl listens to any call on your device and shows a live translation and what to say next — based on your documents. The other side sees nothing added to their screen.
- Zoom
- Google Meet
- Teams
- Telegram
- FaceTime
- Discord
How it works
- 01
Tell Subtl about the meeting
Goal, your role, the documents, the names. Two minutes before the call, and the answer drafts use your numbers instead of generic phrases.
- 02
Open any call
Subtl reads the audio from the device itself. No bot in the room, no plugin in the meeting app, no notification to the other participants.
- 03
Read, then speak
The original, the translation and a draft answer in the other person's language appear within a couple of seconds. The overlay is excluded from screen sharing.
Works with
Capture happens below the application, so the list is not really a list — it is every call app that plays sound on your machine.
macOS today. Windows is in progress.
How Subtl compares
| Feature | Subtl | Cluely | Google Meet | Otter |
|---|---|---|---|---|
| Where it works | Any call app on your machine | Any app — overlay over system audio | Google Meet only | Joins the meeting as a bot |
| Live translation | The core feature, 30 languages | Not the focus of the product | Yes, 70+ languages (announced June 2026) | Transcription and notes, not translation |
| Answer drafts from your documents | Yes, from files you attach to the meeting | Yes — context files and instant answers | No | No |
| Hidden from screen sharing | Included in Pro at $19 per month | Sold as “Pro + Undetectability” at $149.99 | Not applicable | Not applicable |
| Bot joins the meeting | No | No | No | Yes |
| When it helps | During the call | During the call | During the call | After the call |
| Price | Free · $19 · $9 with your own key · $39 | Free · $19.99 Pro · $149.99 Pro + Undetectability | Included in Google AI subscriptions | $10–20 per month |
Competitor features and prices as of September 2026 — verify before launch.
Pricing
One subscription covers every call app on your machine. Cancel at any time; access runs to the end of the paid period.
Free
Enough to find out whether this works for you.
$0per month
No card required
- 40 minutes per month
- Live translation, 30 languages
- Local history on your device
- No answer drafts
- Not hidden from screen sharing
Pro
The full product for someone whose calls decide things.
$13.25per month
$159 billed yearly — you keep $69
- 1500 minutes per month, about 25 hours
- Answer drafts from your own documents
- Hidden from screen sharing
- Context presets and files, meeting history and export
$13.25 per month · $159 / yearly
Pro with your own key
Same product; your OpenAI, Anthropic, Gemini or DeepL key does the work.
$6.33per month
$76 billed yearly — you keep $32
- Everything in Pro
- You pay your AI provider directly
- Keys stay in your system keychain, not on our servers
$6.33 per month · $76 / yearly
Unlimited
For people who are on calls all day.
$27.33per month
$328 billed yearly — you keep $140
- No monthly minute limit, fair use at 100 hours
- Priority models and lower latency
- Glossary and early access to new features
$27.33 per month · $328 / yearly
Prices in US dollars, sold by Arcada US LLC through Stripe. Taxes are calculated at checkout. Payments are final and non-refundable except where the law of your country requires otherwise.
What happens to your audio
Audio is never stored
It exists in the memory of your device and in transit over TLS to the transcription provider. It is not written to disk and not kept on our servers.
Transcripts stay local by default
History lives in a database on your machine. Cloud sync exists, is off until you turn it on, and can be turned back off.
Context files have an expiry
Files you attach are chunked and embedded on the server so answers can quote them, and are deleted 30 days after the last meeting that used them.
You are the one operating the capture
Subtl does not notify the other participants, because it is not part of their call. Telling them, where your local rules require it, is your responsibility.
Questions people ask first
Which call apps does it work with?
Any application that plays sound on your Mac: Zoom, Google Meet, Microsoft Teams, Telegram, WhatsApp Desktop, FaceTime, Discord, and the ones we have not tested. Capture happens at the system-audio level, so nothing is installed into the call app and no meeting bot joins.
Is it legal to translate a call?
It depends on where you and the other people are. Subtl does not record audio, but several jurisdictions treat live interception the way they treat recording, and some require every party to consent. We keep a per-jurisdiction summary on the legality page, and following the rules where you are is your responsibility.
What does “hidden from screen sharing” actually cover?
The overlay window is marked as protected content, so when you share a window or your whole screen in Zoom, Meet, Teams or Discord, the shared image does not contain it. It does not cover a camera pointed at your monitor, a second person in your room, a screen recorder that captures at the driver level, or anything the meeting host records on their side. We will not tell you that nobody can ever know.
Is my audio or my transcript sent anywhere?
Audio goes to the transcription provider over TLS and is not stored by us. Transcripts stay on your device unless you switch cloud sync on. Files you attach for context are stored as text chunks and embeddings on our server and expire 30 days after last use.
How accurate is the translation?
Good on clear speech and full sentences, worse on crosstalk, heavy accents and single words. We do not claim perfect accuracy in any language, and we would rather you treat a draft answer as a draft.
What happens when the free minutes run out?
A warning appears before the limit and the session stops at it. Your call is unaffected — Subtl is not in the audio path of the call itself.
Get the launch email
One message when the build you can install lands, and nothing else. No newsletter.
Download
Apple silicon and Intel, macOS 13 or newer. Downloads the latest release from GitHub.
The Windows build is being tested. It is not published yet, and we would rather say so than ship a version that drops audio.
The desktop app is where everything happens. The web cabinet is for your subscription, presets and devices.