Family planner

Signing in and the code

You sign in to moj with a code from an email. It has 6 digits and is valid for 5 minutes. If it does not arrive, one of four steps almost always helps.

How do you sign in?

With your email address and a code. There is no password.

Type in your address and tap “Send code”. Shortly afterwards an email with 6 digits arrives. Enter them in moj and tap “Sign in”.

You then stay signed in for 30 days. Each day you open moj extends that. If you use moj regularly, you only ever sign in once.

Where does the email with the code come from?

From “moj” at the address post@heymoj.app. The subject line is “Your moj code:” followed by the digits. That means you can often see the code in the notification without opening the email.

What do you do when the email does not arrive?

  1. Look in the spam or promotions folder. Emails from a new sender often end up there.
  2. Check the address. moj shows it on the screen where you enter the code. A single typo sends the code nowhere.
  3. Tap “Send code again”. moj confirms this with “A new code is on its way”. After that only the new code counts.
  4. Wait a minute. If it says “Something went wrong”, there was a fault or too many tries in a row. Trying again after a minute usually works.

If nothing arrives even then, write to us using the form on the help page. Tell us the address you want to sign in with.

What does “The code is wrong or has expired” mean?

One of three things. The code is older than 5 minutes, you mistyped it, or there is already a newer code. A code is also used up after five wrong tries.

In all three cases the fix is the same: tap “Send code again”, then use the code from the newest email.

If it says “The code was right, but the sign-in didn’t stick”, the code was correct. The connection dropped afterwards. Just try again.

What happens with a different email address?

It creates a new account. Your family space and your entries are tied to the address you started with. A different address makes moj ask you to create a new family space. Everything there is empty.

Always sign in with the same address. You cannot change it in the app yet. If you want to switch to a different one, write to us.

And after deleting your account?

For the first 30 days moj asks after you sign in whether you want your account back. At the top it says “Your account will be deleted on …”. Below it you choose “Bring my account back” or “Start afresh”.

Your family spaces come back with your role in them. What you kept for yourself with “Only me” is back too. You set up WhatsApp, widgets, share links and calendars from outside again.

After the 30 days the same address gives you a new, empty account.

How does a child sign in?

Without an email address, using a code from you. In moj, open the child’s page under “Family” and tap “Set up a phone”. moj then shows a code and a QR code. If the child is not in moj yet, add them under “Family” first, as “A child of ours”.

On the child’s phone, tap “I have a code from my parents” when signing in. Enter the code there or scan it. The code is valid for ten minutes and works only once. A new code makes the old one invalid.

If the scanner closes again straight away, moj does not have access to the camera. Just type the code in instead. How to allow the camera is explained on Microphone, camera and contacts.

After more than five tries in one minute, moj slows you down with “Too many attempts. Wait a moment.” After a minute you can carry on.

And on a new phone?

Sign in there with the same address, and everything is back. What else you need to set up again is on new phone.

Short answers

Does moj need a password?

No. You sign in with your email address and a code. The code has 6 digits and comes by email.

How long is the code valid?

5 minutes. You have five tries. After that you need a new code, and “Send code again” gets you one.

Why does an older code not work any more?

Because only the newest one counts. Each time you tap “Send code again”, the earlier codes stop working. Always use the most recent email.

Can I sign in with Apple or Google?

No. You can only sign in with an email address and a code.

Can I change my email address?

Not in the app yet. Write to us and we will move your account to the new address. If you simply sign in with a different address, you get a second, empty account.

As of 20 October 2026. Before this: the first steps. What we store along with your address is in the privacy notice.

Still have a question?

Send us a line about what you tried to do and what happened instead. We reply to the address you give.

Write to us

In the Swiss App Store since 6 October 2026. Germany and Austria will follow, and Android by the end of the year.