Personal Finance. Last updated 6 September 2026.
Personal Finance is a private, single-user application operated by its author for their own use. It has no other users and no sign-up.
With the account holder's explicit consent, the application reads their
Gmail messages in order to find transaction alerts from their banks and
receipts from food-delivery and ride services. It uses the
gmail.readonly scope: it can read mail and cannot send,
modify, or delete anything.
It also connects, again only at the account holder's request, to Splitwise and to food-delivery accounts, to read the user's own expenses and orders.
Transaction details extracted from those messages — date, amount, merchant, and the alert text they were parsed from — are stored in a private database controlled by the author. Access tokens for the connected services are stored encrypted.
Financial records are encrypted at rest under a key derived from the user's own password. That key exists only in the user's browser, so the hosting providers involved cannot read the stored data.
Data is kept until the account holder deletes it. Access can be withdrawn at any time from Google Account permissions, which immediately stops any further reading of mail. Disconnecting the account in the application's own settings deletes the stored token.
Questions about this policy can be sent to the address listed as the developer contact on the Google consent screen.