EN NL

Number Field privacy policy

How Number Field handles your data.

Last updated: 5 October 2026

This privacy policy explains how MaatInICT B.V. ("we", "us") handles your data when you use the Number Field app ("the App") on iOS or Android. We collect as little data as possible ourselves. The App is free and funded by advertising from Google AdMob.

1. Controller

  • Developer: MaatInICT B.V., Benthuizen, the Netherlands
  • Chamber of Commerce (KvK): 98768360
  • Email:

2. Data the App processes

  • Game progress: your progress, settings and high scores are stored locally on your device.
  • Game Center: if you use Game Center, your scores and achievements are processed by Apple under Apple's privacy policy.
  • Advertising: Google AdMob processes data to show and measure ads (see below).
  • Purchases: if you remove ads with an in-app purchase, Apple (App Store) or Google (Google Play) handles the payment. We receive no payment details; the App only receives confirmation that the purchase was made.

We do not collect names, email addresses, location data or contacts through the App, and we have no server of our own that game data is sent to.

3. Advertising (Google AdMob)

The App shows ads from Google AdMob, a service of Google Ireland Limited. There are two kinds:

  • Regular ads while you play. You can turn these off with a one-off in-app purchase.
  • Rewarded videos: you choose whether to watch a video, for example for extra points or hints. This is never required.

To show ads, Google processes data such as your device's advertising ID (IDFA on iOS, advertising ID on Android), your IP address, device type and operating system, and information about which ads you see and tap. Google also uses this data to prevent fraud and to measure ads.

You only get personalised ads if you consent. On iOS, Apple asks for this through the App Tracking Transparency prompt; if you decline, the App gets no access to your advertising ID. Without consent, AdMob shows non-personalised ads. You can change your choice at any time in your device settings:

  • iOS: Settings > Privacy & Security > Tracking.
  • Android: Settings > Google > Ads, where you can reset or delete your advertising ID.

Google may process data outside the European Economic Area under the EU-US Data Privacy Framework. See how Google uses information from apps that use its services and Google's privacy policy.

Legal basis: for personalised ads, your consent (Art. 6(1)(a) GDPR). For non-personalised ads, our legitimate interest in offering the App for free (Art. 6(1)(f) GDPR).

4. Third-party services

  • Google AdMob: advertising, see above.
  • Apple Game Center (iOS only, optional): leaderboards and achievements. See Apple's privacy policy.
  • App Store and Google Play: downloading the App and handling in-app purchases.

We do not use analytics tools of our own in the App.

5. Children

Number Field is not specifically aimed at children. Because the App shows ads, we recommend that parents keep an eye on young children while they play. We do not knowingly collect personal data from children under 16.

6. Your rights

Under the GDPR you have, among other things, the right of access, erasure and objection, and you can withdraw consent at any time.

  • You delete your local game data by removing the App from your device.
  • You withdraw consent for personalised ads in your device settings (see section 3).
  • For data processed by Google, you can also contact Google directly.

Questions about your rights? Email . You can also lodge a complaint with the Dutch Data Protection Authority (Autoriteit Persoonsgegevens).

7. Security

Game data is stored locally and protected by your device's security. Data for advertising is sent to Google encrypted.

8. Changes to this policy

We may update this privacy policy from time to time. Changes will be published on this page. We recommend reviewing this policy regularly.

9. Contact

If you have questions about this privacy policy, please contact us: