Security & data ownership
Voice Sheet never connects to your bank, processes your voice on your device, and stores every entry in a Google Sheet you own — not in our database. The safest place for your financial data is a spreadsheet only you control, and that's exactly where it stays.
No bank linking — ever
Voice Sheet has no bank-connection feature. You never hand over bank credentials, and no aggregator sits between the app and your accounts. You log expenses yourself, by voice, note, or form.
Your data lives in your Google Sheet
Every entry is written to a spreadsheet in your own Google Drive. There is no Voice Sheet server database holding a copy of your transactions — delete the app and your full history is still yours.
Voice is processed on your device
Speech-to-text runs locally on your phone; audio recordings never leave it. Only the transcribed text is sent to Google's Gemini API to extract the amount, merchant, and category.
Minimal Google access, revocable anytime
Sign-in uses Google's standard OAuth 2.0 with only the scopes needed for the sheets you authorize. The token stays on your device — even we can't use it — and you can revoke access from your Google Account settings at any time.
Encrypted in transit
All communication with Google's APIs — Sheets, Drive, and Gemini — is encrypted with HTTPS/TLS.
No selling, trading, or renting data
We do not sell, trade, or rent personal information. Data is shared only with the Google services that provide the app's core functionality.
The full details are in our privacy policy. See also expense tracking without bank linking and Google Sheets sync.
Security questions
- No. Voice Sheet never asks for bank credentials and has no bank-linking feature at all. You log expenses yourself — by voice, note, or form — so no third party ever holds a connection to your financial accounts.
- In your own Google Sheet, inside your own Google Drive. Voice Sheet writes entries there and keeps app settings locally on your device — there is no Voice Sheet server database holding a copy of your transactions.
- No. Speech-to-text runs on your phone, so audio never leaves your device. Only the transcribed text is sent to Google's Gemini API to extract the amount, merchant, and category before the entry is written to your sheet.
- Voice Sheet uses Google's standard OAuth 2.0 sign-in and requests only the scopes needed to read and write the sheets you authorize. The access token is stored securely on your device, and you can revoke it anytime from your Google Account settings.
- No. The OAuth token that grants sheet access never leaves your device, so only the app running on your phone can touch your spreadsheet. We do not sell, trade, or rent personal information.

