Expense Lens

Privacy Policy

Last updated: March 17, 2026

What we collect

We only collect data necessary to operate the app:

  • Account data — email address, display name (on signup)
  • Expense data — receipts, amounts, merchants, categories, dates, currencies
  • Mileage data — trip routes (start, destination, distance), if you use the mileage tracker
  • Device data — browser type, OS (for error analysis)
  • Usage data — page views, feature usage (via Google Analytics 4)

Why we collect it

  • To provide and improve the expense tracking service
  • To power AI receipt extraction and spending analysis
  • To send transactional emails (password reset, subscription confirmation)
  • To generate reports and exports for you
  • To process payments via Stripe (we never see or store your card number)

What we don't do

  • We never sell your data to third parties
  • We never use your expense data for advertising
  • We don't require bank account connections
  • We don't track you across other websites

Third-party services

We use a small number of trusted services to operate Expense Lens. Each handles only the minimum data necessary.

Service Purpose
Google FirebaseAuthentication, database, cloud functions
Google Analytics 4Anonymous usage analytics
StripePayment processing
ResendTransactional emails
Google Maps APIRoute calculation (mileage tracker)

Data retention

  • Account data — stored while your account is active
  • Receipt images — stored until you delete the expense or your account
  • On account deletion — all data permanently removed within 30 days

Your rights

You can at any time:

  • Unsubscribe from emails (link in every email)
  • Export your data as CSV from the app
  • Delete your account from app Settings → Delete account
  • Request a copy or deletion of your data by email

For any privacy requests, email [email protected].

Cookies

The landing page uses Google Tag Manager for anonymous visit analytics. The app uses essential cookies for authentication only — no tracking cookies, no ad cookies. You can decline analytics cookies; the app works fully without them.

Changes

If we make significant changes to this policy, we'll notify you by email. Minor clarifications may be made without notice.