3-day free trial
$0/ 3 days
Starts when you install · No charge during trial
- You won't be charged automatically during the trial.
- After the trial, continue at the $9/month launch price.
- Cancel anytime in Google Play or the App Store.
Subscription
Butterbun subscription
Smooth real-time interpretation with Butterbun.
Try every feature free for 3 days, then continue with a monthly plan.
Monthly plan
$9/mo
Billed via Google Play or App Store · Cancel anytime
GET IT ONGoogle PlayComing soonApp Store
What's included
- Long-form live interpretation
- Conversation + AI replies
- Session records & search
- Natural TTS
- Easy to use
All-in-one
What's included
One subscription unlocks live interpretation, chat, and session records.
Long-form live interpretation
Interpret seminars, meetings, and talks with continuous listening. Source and translation appear side by side.
Conversation + AI replies
Translate 1:1 dialogue instantly and keep the flow going with context-aware suggested replies.
Session records & search
Save interpret and chat sessions, then search by title, language, or content to review later.
Natural TTS
Hear translations in a soft, natural voice—useful for speaking aloud during conversations.
Easy to use
Interpret · Chat · History tabs, large text, and dark mode. Works on Android and iOS phones and tablets.
How it works
3-day free trial
Your free trial starts when you install the app and open it for the first time.
- Launch offer
- 3-day free trial
- Play · App Store
- Cancel anytime
You won't be charged automatically during the trial.
After the trial, continue at the $9/month launch price.
Cancel anytime in Google Play or the App Store.
Start your free trial
Download the app and try live interpretation free for 3 days.
Android · iOS
GET IT ONGoogle PlayComing soonApp Store