Koine

Live translation
on every phone

Share a QR code and your audience listens on their own phones. Accurate live translation in up to 70 languages — no headsets.

70supported languages
~1.5stypical voice delay
No appscan and listen
No per-seat feespriced per language, per hour
See it in action

Choose a speaker. Hear the translation.

Start a real translated clip. The phone beside it shows the same listener experience your audience opens at the event.

Built on frontier speech and translation models from OpenAI and Google.

Real translated audio Choose a speaker
to start the demo.

One tap starts the clip and opens the listener view.

Translation
Methodist sermon

The Old, Old Story

An English sermon with five complete translated voice-and-caption tracks for a multilingual congregation.

Rev. Cynthia Williams · CC BY 2.0
Sunday message
This service is recorded and available for attendee replay.

A volunteer running Koine on a laptop during a live event.
Who runs it

If it takes a specialist, it won't happen every week.

One person starts the session, confirms the audio, and shares the code — from a single guided view that shows exactly what listeners are getting. No AV degree, no new hardware, and nothing to hand out and collect afterwards.

01

Bring one source

A microphone, a soundboard feed, or a livestream link becomes the source for the room.

02

Pick languages

Each language is translated once and shared with everyone who selects it — cost follows languages, not crowd.

03

People listen

Attendees scan a code and listen on their phones, by voice or captions. Recordings and notes can live on afterward.

Presentation compatibility

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
A church booth showing Scripture on the main screen and on a listener's phone.
BibleSense

Scripture in their own Bible.

When a reference is spoken, the booth approves it and each listener sees the passage in their own published translation — not a machine paraphrase.

Explore BibleSense →

Already running it

In Volda, fifteen people from Ukraine followed along in their own language.

Pinsekyrkja i Volda used Koine so fifteen members from Ukraine could listen on their own phones. They were very happy with the translation.

Pinsekyrkja i Volda · Norway

Also in use at KF Vesterålen.

Compared to what you do today

Every room already copes somehow. Each way of coping costs something.

Almost nobody starts from nothing. There is a member who translates, an interpreter on the invoice, or a quiet decision to let people follow what they can. Here is what each one actually costs you.

What happens Nothing in place A member translates Hired interpreters Koine
Languages at once One — whichever is being spoken One, and only on the days they are there One for each interpreter you hire Up to eight at once on standard plans, all off the same feed — more on request
What it costs Nothing in money — the cost is the people who quietly stop coming Free, and it costs that member their own Sunday, every week $1,000+ per language per day, plus receiver rental $10 per language, per hour — whether ten people listen in that language or ten thousand
What it does to the room Nothing — and half the room follows about half of it Whispering disturbs the rows around them; from the stage, every sentence is said twice and the service runs long From the stage, the same doubling; from a booth, nothing at all Nothing — it arrives in their own earbuds, in step with the speaker
Hardware to manage None None Receivers to rent, hand out, collect, charge and sanitize None — the phone already in their pocket
Nuance, humour and idiom Warm and familiar, but uneven The best in the room. This is the thing you are paying for. Close, and getting closer — but a great interpreter is still better
Members who are hard of hearing An induction loop, if one was ever installed — and only for hearing aids with a telecoil Live captions and the room's own audio, to any phone, on the lane you already pay for
What is left afterwards Nothing Nothing Nothing The recording, a transcript in every language it ran, and a page people can follow

Interpreter costs vary widely by country, language, and whether the work is done from a booth or from the stage; the figure above is a common day rate for a simultaneous team. If you have a real quote in front of you, send us what it says — including the cases where keeping your interpreter is the right call.

Even with no translation

The room's own sound, on every phone

  • Stream the original audio live — hearing assistance without a hearing loop or receivers
  • The nursery, the lobby, and the overflow room stay on the session with a phone and earbuds
  • Homebound members hear the service itself, not just a translation of it
For organizers

One session becomes a broadcast, a library, and a reason to return.

Koine gives the room one live experience, then gives your organization a recording, a permanent page, and a growing audience to bring back next time.

01

Run it live

Send voice, captions, and the room’s own audio to every phone from one source.

02

Reach beyond the room

The overflow, remote guests, and people in another country join the same session.

03

Build your library

Publish the recording and transcript to a permanent page for anyone who missed it.

04

Bring people back

Followers can return to past sessions and know when your organization goes live again.

Where it works

One tool for wherever language gets in the way.

Paper-cut church interior with a speaker at the pulpit and rows of listeners.

Churches

Translate services for the whole congregation, with optional BibleSense for approved Scripture.

See church setup →
Paper-cut lecture room with a teacher at the front and students listening.

Education

Lectures, assemblies, and parent evenings that newcomer families can follow in real time.

See education setup →
Paper-cut conference stage with an audience in front of it.

Conferences & events

Keynotes, breakout tracks, and company all-hands for audiences that work across languages.

See event setup →
Paper-cut civic hall with a speaker at the front and residents listening.

Government & civic

Council meetings, public hearings, and resident information that every household can follow.

See civic setup →
A phone highlighting and saving a line from the live translation.
The listener app

Listen live. Keep what mattered. Come back next time.

The browser gets people listening immediately. The optional app lets them take notes and photos as it happens, rewind a sentence they missed, return to the session after the room clears — and follow you, so they know when you start again.

  • Notes and photos in context — write a thought or snap the slide, kept at the right moment
  • Rewind and replay — slide back during a live session, or revisit it entirely afterwards
  • Follow the organizers they return to — a notification when you go live, in their language
  • Ask about what was said — recaps and answers grounded in the session, with Koine Intelligence
  • Personal tools when needed — private and two-way translation live inside the same app
Download on the App Store Get it on Google Play

See everything the app does →

Pricing

Priced to your room.

Pricing scales with your languages, the hours you run them, and the size of your room. A language-hour is one language translated for one hour, however many people listen.

Try it

Free

$0

Try it on your own audio. The first 10 minutes are free, no card needed.

Start free →

Light monthly use

Lite

$96/mo

One live session, up to 3 languages, 75 listeners, and 12 language-hours a month.

See plan →

Most popular

Standard

$169/mo

Two live sessions at once, 400 listeners, 24 language-hours, overlays and recordings.

Compare all plans →
Ready when the room is

Run your next service, class, or session in more than one language.