Privacy policy

Last updated October 21, 2026

Leon is a personal assistant used only by its developer, Evan Soy. This policy explains what Leon does with data from Google accounts connected to it. The only accounts connected are the developer's own.

What Leon accesses

• Gmail (read-only): message headers and contents, so Leon can find deadlines and emails that need attention.
• Gmail (compose): creating drafts. Leon does not send email; drafts are sent by hand.
• Google Calendar: reading events and creating or changing events Leon was asked to add.
• Basic profile: the account's email address, to tell connected accounts apart.

How it's used

Google data is used only to answer the developer's own requests and reminders: summarizing mail, tracking deadlines, drafting replies and managing the calendar. To do this, relevant content is processed by Anthropic's Claude models, which power Leon's responses.

Google data is not sold, not used for advertising, not shared with anyone else and not used to train AI models.

Where it's stored

Leon runs on the developer's own computer or private server. Sign-in tokens and any saved data stay there and are not uploaded anywhere else. Access can be removed at any time from the Google account's third-party access page.

Google API Services User Data Policy

Leon's use and transfer of information received from Google APIs adheres to the Google API Services User Data Policy, including the Limited Use requirements.

Contact

Questions: github.com/evanjsoy-sketch