Terms of service

Last updated 28 September 2026

c3 is personal software operated by Matthew McGivney. These terms cover the app described on the c3 homepage, including its Gmail connection.

c3 is provided as-is, without warranty. Mail in Gmail is not deleted by these terms, and Gmail remains the source of the messages.
Connect only Google accounts you are allowed to access.
Do not use c3 to access someone else's Google account, to scrape Google services, or to violate Google's terms.
Gmail data is handled only as described in the privacy policy.
The operator may stop offering the Gmail connection. Stopping it does not delete mail stored in Gmail.