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Run the room from one focused app.

Start and monitor live translation, open a clean projector view, and place captions over the presentation software your room already uses.

Choose your computer Manage your organization on the web

The booth app is for the operator. Listeners join on their own phones without installing anything.

Choose the computer that runs the room.

macOS

Universal app for Apple silicon and Intel Macs
Signed and notarized for macOS
Booth, projector and floating overlay windows

Download for macOS Version 0.1.17 · Universal DMG

Windows

Installs from the Microsoft Store on Windows 11 x64 computers
Digitally signed by VOIS AI AS
Same booth, projector and floating overlay windows

Get it from the Microsoft Store Version 0.1.16 · Windows 11 · 64-bit

Works with the presentation setup you already use.

Add Koine as a browser source in ProPresenter, EasyWorship, OBS or vMix — or use the desktop overlay with PowerPoint and Keynote.

See the overlay →

ProPresenterEasyWorshipOBSvMixPowerPointKeynote

The operator keeps control. The audience sees the finished result.

The booth window stays private while projector and overlay windows carry only the translated content meant for the room.

Booth app questions.

Can I run live translation in a browser?

Yes. You can run core live translation in the web console with a microphone or audio link. Koine Booth adds computer-audio capture, external displays, and floating overlays.

Is the Mac app safe to open?

Yes. The universal Mac app is signed with an Apple Developer ID and notarized by Apple for both Apple silicon and Intel Macs.

Is the Windows app safe to install?

Yes. The installer and app are digitally signed by VOIS AI AS through Microsoft Artifact Signing, so Windows can verify the publisher before installation.

iPhone, iPad and Android have their own mobile app page.

See the mobile app