Parent accounts now need a confirmed email and a sign-in code

Your account holds your child's learning history, so we have made it much harder for anyone else to get into it. This was a commitment in our published plan, and it had to be in place before the pilot begins with real families.

What changes when you sign up

Setting up an account now has four short steps, and the page shows you which one you are on:

1. Create your account, as before.
2. Confirm your email address using the link we send, which stays valid for 60 minutes. If it doesn't arrive, check your spam folder or request another.
3. Set up a sign-in code. You add Math Revision to a free authenticator app, such as Google Authenticator or Microsoft Authenticator. On an iPhone, the built-in Passwords app also works. The whole process usually takes about two minutes.
4. Add your child's profile.

What changes when you sign in

After your password, we ask for the 6-digit code currently displayed in your authenticator app. The code changes every 30 seconds, and each one works only once, so a code someone notices over your shoulder is useless.

Signing in with Google works the same way. Google confirms your identity first, and then we still ask for your code.

If you lose your phone

When you turn on sign-in codes, we give you eight recovery codes. Each one lets you sign in once without your phone. Print them, or store them in a password manager. You can generate a new set at any time from the Account page, which also cancels the old ones.

Why it is not optional

Some services let you skip this step. We don't, because a parent account controls a child's data, study settings and downloads. Your child's own sign-in hasn't changed.