Arthmastery respects your privacy. This Privacy Policy explains what information is collected, how it is used, and how it is protected when you use the website. The ArthMastery Android app is covered separately below, since its data practices differ from the website's.
Arthmastery is designed to be simple and does not require student login. Depending on how the site is used, we may collect limited information such as:
We may use collected information to:
Students are not required to create an account or log in to practice on Arthmastery. The platform is intended to be simple, free and accessible.
Arthmastery may use cookies or similar technologies to improve performance, remember preferences, or understand usage patterns. If analytics tools are used, they are intended to help improve the site rather than identify individual students.
We do not sell or share any personal information.
Arthmastery is designed for students, including children. No personal information about any student is collected.
The sections below apply specifically to the ArthMastery Android app and describe how it differs from the website.
The ArthMastery Android app has no backend, no server, and no remote database. It does not use any analytics SDK, advertising SDK, or crash-reporting SDK of any kind. The app does not collect, transmit, or share any personal information, usage data, or device identifiers with us or with any third party.
The app stores the following information locally on your device only, using standard on-device storage (never transmitted anywhere):
This data never leaves your device unless you explicitly export it yourself (Settings → Export/import progress) to move it to another device.
The app has no sign-in, no account creation, and no login of any kind. You can start practicing immediately after installing it.
The app requests notification permission solely to schedule an optional daily practice reminder that you can enable or disable in Settings. No data is collected or transmitted as part of this feature -- it is handled entirely by your device's own notification system.
You can clear all locally stored app data at any time via Settings → Reset all progress. Uninstalling the app also removes all of its local data from your device.
The ArthMastery app is intended for students and adults preparing for competitive exams and mental-math practice. It is not directed at, or designed to appeal primarily to, children under 13.
We use reasonable safeguards to protect information. However, no website or online system can guarantee complete security.
Arthmastery may contain links to other websites. We are not responsible for the privacy practices of external sites.
We may update this Privacy Policy from time to time. Any changes will be posted on this page with an updated date.