Privacy Policy

Last updated August 26, 2026

fairshare is a check-splitting app built and run by a single developer, not a company. This page explains, in plain language, what information the app collects, why, and who else can see it. If anything here is unclear, email jaeyoungchang5@gmail.com and ask.

What fairshare collects

Creating an account and using the app involves this information:

• Account info — the email address, password, and display name you register with. Your password is never stored in readable form: it's run through a salted hash (scrypt) before it touches the database, so even direct database access doesn't reveal it.
• Venmo username (optional) — if you add one to your profile, it's used to build a pre-filled Venmo payment link for people who owe you. It's never sent to Venmo by fairshare itself; the link only opens Venmo when someone taps it.
• Split data — the checks you create: line items, prices, tax/fee/tip amounts, participant names, and who claimed what. If you add a participant who doesn't have an account, we store the name you gave them and nothing else about them until they sign up and join.
• Session token — a random token in an httpOnly cookie that keeps you signed in. It isn't readable by page scripts and isn't used to track you anywhere else.

That's the whole list. fairshare doesn't run analytics, ad tracking, or any third-party trackers, and it doesn't collect your location, contacts, or device identifiers.

Why it's collected

Every field above exists to make the app work: signing you in, calculating and displaying your share of a check, and letting an organizer share a check with the people on it. Nothing is collected for advertising or sold to anyone.

Who can see it

A split and its items, prices, and claims are visible to the people on that split — the organizer and anyone who joins with the share link. Your email and password are never shown to other users; only your display name and Venmo username (if set) are visible to people you split a check with.

Where it's stored

Data is stored in a Postgres database hosted by Supabase and the app itself runs on Google Cloud Run. Both are infrastructure providers processing data on fairshare's behalf — neither has an independent right to use it, and fairshare doesn't share it with any other third party. Connections to the database are encrypted in transit.

How long it's kept

Account and split data is kept for as long as your account exists. You can delete your account by emailing jaeyoungchang5@gmail.com, which removes your account info; split data you organized may be kept if other participants still rely on it, with your account unlinked from it.

Children

fairshare isn't directed at children, and you must be at least 13 to create an account.

Changes to this policy

If what fairshare collects or how it's used changes materially, this page will be updated and the date at the top will change.

Contact

Questions, or want your data deleted? Email jaeyoungchang5@gmail.com.