The short version
Privacy
The waitlist stores your email. The app stores your math. Neither is shared, sold, or used for advertising. The details are below.
The app: signing in
Arithmos asks you to sign in with Google or with Apple. From that sign-in we receive your name, your email address, and an account identifier, and we use them for one thing: creating and recognizing your Arithmos account. We never see your password, and we never post, read, or touch anything else on your Google or Apple account.
The app: what it stores
Your learning record lives against that account: lessons finished, XP and levels, practice days and streaks, gems and what you spend them on, achievements, and your settings. It sits in our database (Supabase), locked so each account can only reach its own rows, and it syncs there so a new iPhone picks up exactly where the old one left off.
The app: what it doesn’t do
No ads, no third-party analytics, no trackers, no selling or sharing of your data. The app talks to our database and to nobody else.
Deleting your account
You can delete your account from inside the app, under Account. That removes your record from our database. If you’d rather, email help@arithmosmath.com from your account’s address and we’ll do it for you.
This site: the waitlist
This site collects the email you enter, when you joined, and, if you came from a shared link, a short tag saying where from. Nothing else: no cookies, no analytics, no trackers. We’ll email you about the Arithmos launch, we don’t send newsletters, and we don’t share or sell the list.
Leaving the list
Email help@arithmosmath.com from the address you signed up with and we’ll delete it. The launch email will have an unsubscribe link too.