How your data stays private
- No backend. This page is static files only. There is no server in the path between you and Google — nothing here can log, proxy, or store what you enter.
- Your sign-in token never leaves this browser tab. It's held in memory
(and this tab's
sessionStorage, wiped when you close it) and sent only, directly, togoogleapis.com. - Only one file, and only because you picked it. The app requests the
drive.filescope, which grants access exclusively to the single spreadsheet you select or create through the picker below — not your Drive, not any other file. - Every read/write goes straight to Google. Adding, editing, deleting a
transaction calls
sheets.googleapis.comdirectly from your browser. - Verify it yourself: — open the raw spreadsheet any time and compare it to what's shown here.
1. Sign in with Google
Grants only the drive.file scope — no access to the rest of your Drive.
Add transaction
Negative sum = expense, positive sum = income.
Summary
Balance
0.00
Income
0.00
Expense
0.00
Transactions
| Date | Sum | Description | Category | Actions |
|---|