Privacy Policy

1. Who this policy covers

This policy applies to the Multiply Master mobile application ("the app") published on the Apple App Store and Google Play. It describes how the app handles information. In this policy, "we" refers to the developer of Multiply Master, reachable at the address in the Contact section below.

2. Information we collect

We collect nothing. The app has no registration, no login, and no user profile. We do not ask for, receive, or store:

• Names, email addresses, phone numbers, or postal addresses
• Dates of birth, age, gender, or any other demographic detail
• Photographs, contacts, calendar entries, or files
• Location data of any precision
• Device identifiers, advertising identifiers, or IP addresses
• Usage analytics, crash reports, or behavioural telemetry

3. Data stored on the device

To show progress over time, the app saves your practice results in local storage on the device itself. This consists only of:

• Which multiplication facts have been attempted (for example, 7 × 8)
• How many times each fact was answered correctly and incorrectly
• The interface language, taken from the device's own language setting

This information never leaves the device. It is not backed up to our servers, because we do not operate any servers. It is not readable by us or by anyone else. It is not linked to any identity — it is simply a tally of sums.

4. No network activity

The app performs no network requests during normal use. Fonts, translations, sounds, and images are all bundled inside the application package. You can verify this yourself: enable airplane mode and every feature continues to work exactly as before.

5. No third parties

Multiply Master contains no advertising networks, no analytics platforms, no social media SDKs, no crash-reporting services, and no A/B testing tools. No data is shared with, sold to, or disclosed to any third party, for any purpose, because no data is collected.

Apple and Google process your download and any payment through their own stores under their own privacy policies. We receive only anonymous, aggregated sales and download totals from them. We never receive information that identifies an individual customer.

6. Children's privacy

This app is designed for children, and we treat that as a reason to collect less, not more. Because no personal information is collected from anyone, the app does not knowingly or unknowingly collect personal information from children under 13 (or the equivalent minimum age in your country).

We believe the app is consistent with the requirements of the United States Children's Online Privacy Protection Act (COPPA) and Article 8 of the EU General Data Protection Regulation (GDPR). There is no verifiable parental consent mechanism in the app for the simple reason that there is nothing to consent to.

The app contains no external links, no in-app browser, no chat or messaging, no user-generated content, and no social features. Nothing in the app can lead a child to content outside it.

7. Permissions

The app requests no device permissions on iOS. It does not access the camera, microphone, photo library, contacts, location, or notifications.

8. Retention and deletion

Practice data is kept on the device for as long as the app is installed. Deleting the app removes all of it permanently. Because nothing is transmitted to us, there is no copy anywhere else and no deletion request is necessary.

9. Your rights

Privacy laws such as the GDPR, the UK GDPR, the CCPA/CPRA, and Türkiye's KVKK give you rights to access, correct, export, and delete personal data held about you, and to object to its processing. We hold no personal data about you, so there is nothing for us to produce, correct, export, or erase. You retain full control of the on-device data through your device's own settings.

10. Security

Practice data is stored in the app's private storage area, protected by the operating system's own application sandbox and device encryption. Since no data is transmitted, there is no transmission to intercept.

11. Changes to this policy

If a future version of the app changes how information is handled, this policy will be updated before that version is released, and the "last updated" date at the top of this page will change. Material changes will also be noted in the App Store release notes.

12. Contact

Questions about this policy, or about privacy in the app generally, are welcome:

playful.educational.applications@gmail.com

We aim to reply to every message within three business days.