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Support

Last updated: April 20, 2026

Contact Us

Hi! I'm Ethan, the developer of BufferMind. I read and reply to every message personally.

Frequently Asked Questions

Is BufferMind free?

Yes — BufferMind is completely free for international students until July 2026. Pricing tiers will be introduced after that, but a free tier will always be available.

What languages does it support?

BufferMind translates from 6 source languages into Chinese and 6+ target languages:

• Source languages: English, Japanese, Korean, Spanish, Hindi, French
• Target languages: Chinese (Simplified), English, Japanese, Korean, Spanish, Hindi

Does it work offline?

No. BufferMind uses cloud-based speech recognition (Soniox) and translation (Claude AI) to provide the highest accuracy possible. An active internet connection is required.

How accurate is the translation?

In our internal testing with university lectures (Machine Learning, Biology, Business), translation accuracy is typically above 90% for major languages. Professional terminology is handled by built-in domain dictionaries (Computer Science, Biology, Business).

Can I record on my iPhone and continue on my Mac?

Yes. Sign in to the same account on iPhone, iPad, Mac, or the web — all your recordings automatically sync across devices.

Where are my recordings stored?

Recordings are stored in your personal account on Supabase, an SOC 2 compliant cloud database. Only you can access your recordings. See our Privacy Policy for details.

Can I export my transcripts and notes?

Yes. You can export any session's bilingual transcript and notes from the session detail page. Export formats include plain text and rich text.

Account Management

How do I delete my account?

Open the BufferMind app → Account → Delete Account. This permanently removes all your recordings, transcripts, and account data within 30 days.

If you can't access the app, email ethanho1237@gmail.com from your registered email address and we'll process the deletion within 7 business days.

I forgot my password

On the sign-in screen, tap "Forgot password?" and follow the email link. If you signed in with Google, Apple, or LINE, use the same social provider to sign in again.

Can I change my account email?

Currently not supported in-app. Email ethanho1237@gmail.com with your current and new email address to request a change.

Troubleshooting

Recording won't start

• Check that BufferMind has Microphone permission in iOS Settings → Privacy → Microphone
• Ensure you have an active internet connection
• Restart the app if the issue persists

Translation is delayed or missing

• Check your internet connection (WebSocket requires stable connectivity)
• Professional terminology may take slightly longer to translate than simple phrases
• If delays persist, please contact us with the approximate time of the session

Audio quality issues

• Position your phone closer to the speaker when possible
• Reduce background noise (close windows, use a quiet room)
• For lectures, external microphones connected via USB-C or Bluetooth can improve quality

Feature Requests & Bug Reports

BufferMind is actively developed by a one-person team (that's me, Ethan). I genuinely want to hear your feedback — it directly shapes what gets built next.

Send feature requests or bug reports to ethanho1237@gmail.com with:

• Your device model (e.g., iPhone 15 Pro, MacBook Air M2)
• What you were trying to do
• What happened vs. what you expected
• Screenshots if relevant

Legal & Privacy

For details on how we handle your data, see our Privacy Policy and Terms of Service.

BufferMind is made by ZCC Labs LLC in San Francisco. Thank you for using BufferMind — your feedback helps a one-person team build a better tool for international students everywhere.