MathStreak — Privacy Policy

Last updated: 14 October 2026

MathStreak is a maths app for every level, from a child's first sums to college calculus. Because it is used by children, we have kept what the app collects to the absolute minimum — for every user, whatever their age — and this policy sets out exactly what that is.

In short: MathStreak has no account, no sign-up and no server. Your child's practice history never leaves their device. We cannot see it, and we could not identify your child if we tried.

No account, ever

MathStreak never asks for a name, email address, phone number, date of birth, photograph or any other personal detail — not from a child, and not from a parent. There is nothing to sign up for.

Practice history stays on the device

Every answer, time, streak and progress figure — and the class you pick when the app asks where you are in maths — is stored only in the phone or tablet's local storage. None of it is uploaded. We operate no server that receives it, so we hold no copy of your child's results and there is nothing for us to sell, share or lose.

Uninstalling the app, or using "Start again" inside it, deletes this data permanently.

Advertising, and how it is restricted for children

The free version shows a single banner advertisement on the home screen. Because MathStreak is used by children, we require Google AdMob to treat every request accordingly, whoever is using the app:

The app also withholds the phone's advertising identifier: it removes Android's permission to read it, so the identifier is never sent to Google, no interest profile can be built from it, and no advertisement is targeted at your child. Google's handling of the data it does receive is described at policies.google.com/privacy.

Buying MathStreak Pro removes advertisements entirely, and no advertising request is made at all.

Purchases

MathStreak Pro is either a yearly subscription, with a free trial first, or a single one-time purchase. Payment is handled entirely by Google Play; we never see or store payment details. Google tells the app only which purchases are current — whether one succeeded, and whether a subscription is still active — and that is recorded on the device. A subscription is managed and cancelled in Google Play.

We would encourage parents to use Google Play's parental controls to require a password for purchases.

Reminders

The optional daily reminder is scheduled locally on the device. The app uses no push notification service, so no device token exists and we have no means of sending a message to your child.

Parents' rights

Because no personal data is ever transmitted to us, there is no stored profile for a parent to request, correct or delete. Deleting everything the app holds is done on the device itself, through "Start again" in the More screen or by uninstalling the app.

Data we share

None. There is no analytics service, no crash reporting, and no third-party software in the app other than Google AdMob and Google Play Billing as described above.

Changes to this policy

Any revision will be published at this address with an updated date at the top.

Contact

Questions from parents are welcome at vaisin213@gmail.com.


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