Privacy Policy

Math For Kids from 2 to 10 Years Old · Last updated: October 16, 2026

This policy explains what information the Math For Kids from 2 to 10 Years Old app for iPhone and iPad (the “App”) uses, why, who it is shared with, and what choices you have.

Who is responsible

The App is developed by Bernard Bijoch, an independent developer based in Poland (“I”, “me”). I am the controller of personal data processed in connection with the App. You can contact me at any time at bbijoch@gmail.com.

In short

• The App is made for children. It has no accounts, no chat and no way to share personal information.
• Your child’s results and progress are stored only on your device. I do not receive them.
• The free version shows a single banner ad from Google AdMob, limited to content suitable for all ages. There are no full-screen ads.
• Settings and the purchase that removes ads are protected by a parental gate.

Information stored on your device

The App saves your child’s answers, star ratings, daily results and the progress calendar, as well as settings such as the difficulty level and the number of questions per day. This information is stored only on your device and is not sent to me. Deleting the App removes it.

Advertising

The free version of the App shows one banner ad provided by Google AdMob, a service of Google. The ads are limited in Google AdMob to content suitable for general audiences (rating G), and sensitive ad categories are blocked. If you buy the in-app purchase that removes ads, no further ads are requested.

To deliver ads, the Google Mobile Ads SDK may collect and process:

• your IP address, which can indicate your approximate location;
• device and operating-system information, such as model, system version, language and screen size;
• information about the App and about the ads you see and tap;
• your device’s advertising identifier (IDFA), only on iOS versions earlier than 14.5 (see below).

Google uses this data to show ads, limit how often you see the same ad, measure ad performance, detect fraud and abuse. Google acts as an independent controller of this data under its own Privacy Policy. You can read how Google uses information from apps that use its services at policies.google.com/technologies/partner-sites and manage ad personalisation at myadcenter.google.com.

Advertising identifier. The App does not ask for permission to track, so on iOS 14.5 and later the advertising identifier (IDFA) is not available to the App or to Google and cannot be used to personalise ads. On earlier iOS versions you can limit its use in iOS Settings › Privacy › Advertising.

Users in the EEA, the UK and Switzerland. This version of the App does not show a consent message. For users in these regions, Google may therefore show only non-personalised or limited ads, which are not based on your activity in other apps or on websites.

Parental gate and in-app purchases

The settings screen and the purchase that removes ads open only after an adult solves a parental gate. In-app purchases are processed by Apple; I do not receive any payment details.

Legal bases (GDPR)

• Storing results and progress on your device is necessary to provide the App (Art. 6(1)(b) GDPR).
• The delivery and measurement of ads is based on my legitimate interests in funding a free app and keeping ads safe and suitable for children (Art. 6(1)(f) GDPR). You can object at any time by contacting me, remove ads with the in-app purchase, or delete the App.

How long data is kept

Data stored on your device stays there until you delete the App. Data collected by Google for advertising is retained according to Google’s retention policy.

Sharing and international transfers

The App shares data only with Google, as the advertising provider described above, and with Apple for purchases. Both are bound by their own privacy policies and data protection terms, which provide protection at least equal to that described in this policy, and may process data outside the European Economic Area, including in the United States, relying on safeguards such as the EU–U.S. Data Privacy Framework and the European Commission’s Standard Contractual Clauses.

Your rights

If you are in the EEA, the UK or Switzerland, you have the right to access, rectify and erase your personal data, to restrict or object to its processing, to data portability and, where processing is based on consent, to withdraw it at any time. Because I do not keep your data on any server of my own, most of these rights can be exercised directly on your device, for example by changing the App’s settings or deleting the App, and with the Google tools linked above. For any request or question, write to bbijoch@gmail.com; I will reply within one month.

You also have the right to lodge a complaint with a data protection authority: in Poland, the President of the Personal Data Protection Office (UODO, ul. Stawki 2, 00-193 Warsaw), or the authority in the country where you live or work.

Children

The App is directed at children aged 2 to 10. I do not collect any personal information from children: the App has no accounts, no free-text input that is sent anywhere, no chat and no social features, and your child’s results never leave the device. Parents and guardians can contact me at bbijoch@gmail.com with any question about the App’s data practices.

Security

Data saved by the App is kept in its private storage, protected by the iOS app sandbox and your device’s security settings.

Changes to this policy

I may update this policy when the App changes. The current version is always available on this page, with the date of the last update at the top. If a change significantly affects how your data is used, I will also mention it in the release notes of the App.

Contact

Bernard Bijoch, Poland · bbijoch@gmail.com