Privacy policy

Last updated 5 November 2026.

This is the same text you see in the HeyMatric app.

This says what HeyMatric keeps about you, why we keep it, who helps us run the app, and how to have it all deleted. Questions: abel.yonas.y@gmail.com.

What we keep

Before you make an account, while you are trying the app: your stream, the questions you answered and how you did. Your phone gets a random number so we can tell one phone from another. No name and no phone number.

When you make an account, also your first name and your phone number. They sign you in with an SMS code, and they bring your work back when you move to a new phone.

When you pay: what you bought, the amount, the transaction reference, the payer details on the receipt, and the photo of the receipt you send. We use these to check your payment and to keep the record of it.

About your phone: its model, its Android version, the app's version, and a notification token if you have turned reminders on.

How the app is used, and when it breaks: which screens and actions are used, for example "practice started", and a report of what went wrong when the app fails. These carry a random number, never your name and never your phone number.

We do not keep your location, your contacts, your messages or your files, and we never listen to your microphone. The only picture we ever receive is the receipt you choose to send us.

Why we use it

We do not sell your data, and we do not show advertisements from other companies.

Who helps us run the app

These services handle some of your data for us, each only for the one job named:

Keeping it safe

Everything the app sends travels encrypted. The questions and your answers on the phone are kept in an encrypted database, so they cannot be read by another app or by someone holding your phone.

How long we keep it, and deleting it

We keep your data for as long as you use the app.

You can delete your account at any time: Settings, then Delete my account. We send a code to your phone number to be sure it is you, and then it is done.

If you no longer have the phone, write to us at abel.yonas.y@gmail.com from any email address, give the phone number of the account, and ask for it to be deleted. We may ask you to show the number is yours first.

What is deleted: your first name and your phone number, your sign-ins (the phone is signed out), your parent link and any notification waiting to be sent, and your sign-in codes and the messages we sent you.

What is kept, and why: the record of a payment and its receipt, which we must keep for our accounts; your answers and scores, kept without your name or your phone number so nobody can tell they were yours, because they show us which questions are hard; and anything you reported about a question, so the question can be fixed.

Our backups of the server are kept for up to 14 days. After that the deleted data is gone from those too.

Your age

The app is made for Grade 12 students, who are usually 16 or older.

Changes, and how to reach us

If this policy changes we change the date at the top, and the version shown on this screen. For anything at all about your data, write to abel.yonas.y@gmail.com.