Contact
Lemmafour is actively developed, and reports from real documents are the most valuable input we get. For support, bug reports, feature requests, or privacy questions, email:
We aim to acknowledge support and billing messages within two business days. Do not send confidential source documents unless support explicitly asks for a sanitized reproduction.
Billing, cancellation, and refunds
Paddle processes orders as Merchant of Record. Buyers can manage a subscription or request a refund from the link in their Paddle receipt or through Paddle buyer support. Product questions remain with Lemmafour at the email above.
Reporting a document that misbehaves
Because your files never reach our servers, we cannot see what went wrong — a good report helps enormously:
- Which tool you used and what you expected vs. what happened.
- Your browser and device (e.g. "Chrome on Android", "Safari on iPad").
- If possible, a non-sensitive file that reproduces the problem — never send confidential documents; a similar file produced by the same software usually reproduces the issue.
Privacy requests
Your documents are processed on your device, so we hold no copies of them. For questions about the data described in our privacy policy, use the same address with "Privacy" in the subject line.