Think Less
Respond Better

Live translation. Smart notes. AI answers — all in real time.

Live Lecture — Computer Science 101 Recording 12:34
Professor
Can anyone explain why we use recursion instead of iteration for tree traversal?
⚡ Quick Answer
Recursion naturally mirrors the tree structure — each recursive call handles a subtree, so the code stays clean and the call stack tracks our position for us.

Speak your language and watch it translate in real time

Two superpowers.
One app.

Live translation so you understand everything. AI that helps you speak up and participate. Organized by course.

Live Translate

Real-time transcription in 15 languages with instant side-by-side translation. Never fall behind in a lecture again.

Languages We Support

Cantonese, English, Chinese, Japanese, Korean, Spanish, Hindi, French, German, Portuguese, Russian, Italian, Dutch, Turkish, Thai, Vietnamese — and more coming soon.

15 speech languages
Real-time answers + good questions
1 tap to start recording

Everything you need in class.

Built for students and professionals who need to capture, understand, and review spoken content across languages.

Course Organization

Group recordings by course. See history, summaries, and trends per class.

AI Summaries

Auto-generated titles and summaries for every recording session.

Buff — AI Assistant

Get real-time context summaries and suggested questions during lectures.

Session Playback

Review recordings with word-level synced audio, transcript, and translation.

Speaker Identification

Automatically identifies professor vs student speakers using audio analysis.

Stealth Mode

Hide the app window instantly with a hotkey. Content is protected from screen capture.

Floating Subtitles

Picture-in-Picture captions overlay on top of any app while you work.

Audio Export & Share

Export recordings and share transcripts with classmates in one tap.

We take your privacy seriously and will never use your data for training

Your recordings and transcripts stay yours. We don't sell, share, or use your data for model training. Delete everything anytime.

Record only when you say

Microphone activates only when you tap Record. Never in the background.

Delete anytime

Delete individual recordings or your entire account from Settings.

Encrypted end-to-end

All data encrypted in transit (TLS) and at rest. No third-party tracking.

Completely free.

No subscriptions, no paywalls. Every feature is available to everyone.

Free

$0
  • ✓ Real-time transcription (20 hrs/month)
  • ✓ Live translation in multiple languages
  • ✓ AI summaries & Buff assistant
  • ✓ Course organization
  • ✓ Session history & audio playback
  • ✓ Guest mode — no signup required

Need more hours?

Send us feedback
  • Submit feedback in the app to earn +5 hours of recording time. We read every message.

Frequently asked questions.

Does BufferMind work for online meetings?

Yes. Use it during Zoom, Google Meet, or in-person lectures. Just tap Record and BufferMind transcribes and translates in real time.

Do I need to create an account?

No. You can use Guest mode to start recording immediately without signing up. Create an account later to sync across devices.

What languages are supported?

BufferMind supports 15 speech languages: English, Chinese, Spanish, Hindi, Korean, Japanese, French, German, Portuguese, Russian, Italian, Dutch, Turkish, Thai, and Vietnamese — plus an auto-detect mode. Translation is available between all supported languages.

What platforms are supported?

BufferMind is available on iOS and web browsers.

Is it really free?

Yes. You get 20 hours of transcription per month for free. Need more? Send us feedback in the app to earn extra hours.