Cookie Policy
Last updated 9 November 2026
BillMunch only uses the cookies and storage it needs to work: to keep you signed in, to keep the site safe, and to remember a few small things on your device. There are no ads, no analytics and no tracking.
What cookies are
A cookie is a small piece of text a website saves in your browser, so it can recognise your browser the next time it asks for a page.
Cookies we set
| Name | What it's for | How long |
|---|---|---|
bm_session |
Keeps you signed in. It holds a random code, and we store only a scrambled fingerprint of it. Your browser can't read it from a script (HttpOnly) and sends it only over secure connections (Secure). | 30 days, or until you sign out |
bm_oauth |
Protects the “Sign in with Google” step, so only the sign-in you started can finish. It's set only while you sign in or add Google in Settings. | 10 minutes |
Other storage on your device
- Local storage: small conveniences that stay on your device and are never sent to us. For example the payment method you used last, the latest exchange rates, whether you've closed the install tip or the cookie notice, and how many times you've seen the tip on the + button.
- Session storage: an invite link you opened, kept only until you finish signing in or close the tab.
- The offline copy: once you've opened the app, its service worker keeps the app's files and your household's latest data on your device, so you can look at it offline. Your data is deleted from it when you sign out or delete your account.
Cookies from others
- Google, only when you use “Sign in with Google”. Google's button may set its own cookies. See how Google uses cookies.
- Cloudflare protects the site from attacks and may set a security cookie, such as
__cf_bmorcf_clearance, to tell people from bots. It's strictly necessary and doesn't track you. See Cloudflare's cookies.
What we don't use
No analytics cookies, no advertising cookies and no tracking cookies, from us or anyone else. Because every cookie here is needed for the site to work, there's nothing to switch on or off.
Your choices
You can block or clear cookies in your browser's settings at any time. If you do, you'll be signed out, and signing in won't work until cookies are allowed again. Clearing your browser's site data also removes the local storage and offline copy described above.
Changes and contact
If this policy changes, we'll update the date above. How we handle your personal information is in our Privacy Policy. Questions? Write to hello@billmunch.app.
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