Support

For app support, email [email protected].

What To Include

Include the app name, Android version, device model, calculator screen, and the input values involved in the question. Do not send full payment-card details, identity documents, or private credentials.

Privacy Questions

Privacy questions can be sent to the same support address. CalcMason apps do not create CalcMason accounts and do not maintain a developer-controlled calculator-history server.

Safety-Critical Domains

Some apps support regulated or safety-critical domains. Results are calculation aids and must be verified with the relevant official sources, qualified professionals, manufacturer instructions, and local rules.