Acceptable Use Policy

Last updated: June 15, 2026

This policy explains what Lembic is for and how to use it responsibly. It works alongside our Terms of Use and Privacy Policy.

What Lembic is for

Lembic exports your own conversations into a clean, compact file so you can use them with an AI tool you choose. That’s it. Use it on conversations you have the right to access, for your own purposes.

What Lembic needs to work

Lembic reads the local Messages database that macOS keeps on your Mac (you grant Full Disk Access the first time you run it). That database is an Apple feature, outside our control. If Apple ever changes or removes it, Lembic may stop working. It’s been stable for years, but it’s a dependency worth knowing about going in. Refunds are available within 30 days of purchase (see the Terms of Use).

You are the final reviewer

Before an export leaves your Mac, Lembic flags some high-risk content (passwords, Social Security numbers, card numbers, 2FA codes) and lets you redact it in one click. It’s a safety net, not a guarantee:

  • It looks for some patterns, not all. It can miss things, and it can occasionally flag something that isn’t actually sensitive.
  • We never tell you an export is “clean.” We tell you what we found, and the rest is up to you.
  • You are responsible for reviewing every export and deciding what to share.

Why this matters

Once you paste a conversation into a chatbot, you can’t un-send it:

  • Many AI services, especially free consumer tiers, may use what you paste to train their models. Your messages can contain things you’d never want in a training set: passwords, account numbers, or private details about other people.
  • Policies vary between providers, and they change. Check the policy of whatever service you use. When the content is sensitive, prefer paid or business tiers (or providers with stronger data commitments), and redact secrets before you share. We’re writing a plain-English guide on this; see our blog.

Please don’t

  • Use Lembic to access or export data you don’t have the right to access.
  • Use it to harvest, surveil, or expose other people’s personal information unlawfully or in violation of their privacy.
  • Resell or share license keys, or attempt to circumvent licensing.
  • Use the app to break the law or to violate anyone’s rights.

Third-party services are on their own terms

When you send an export to ChatGPT, Claude, Gemini, or anywhere else, that provider’s terms and privacy policy govern it, and their handling of your content is outside our control (see Terms of Use, §4).

Contact

Questions? Email [email protected].