Works offline
Every map, note, and quiz is bundled inside the app. No internet connection is needed to use it.
No account needed
There is no sign-up, no login, and no profile. Open the app and start studying.
Nothing is tracked
No analytics, no advertising, and no third-party trackers of any kind.
Information the app collects
Sains collects no personal information. It does not ask for your name, email address, phone number, location, contacts, photos, or any device identifier such as an advertising ID.
Because nothing is collected, there is nothing that can be shared, sold, or exposed in a data breach.
How the app works offline
All learning content ships inside the app package. The app makes no network requests and needs no internet connection. With your device offline or in aeroplane mode, the app behaves exactly the same.
Permissions
The app requests no sensitive permissions. In particular, it does not use:
- Location services or GPS
- Camera or microphone
- Contacts, call logs, or SMS
- Your photo gallery or personal files
Information stored on your device
If you use features such as saved progress, bookmarks, or quiz scores, that information is written to the app's private storage on your own device. It never leaves the device, and the developer has no way to see it.
Uninstalling the app deletes this information permanently.
Third-party services
The app contains no advertising networks, no analytics software, and no third-party software development kits. Nothing in the app reports back to the developer or to anyone else.
Children's privacy
The app is made for school students and is safe for children. Since it collects no personal information from anyone, it collects none from children under 13 either. There are no in-app purchases, no chat, no user-generated content, and no links out to other websites.
Changes to this policy
If this policy changes, the updated version will be published on this page with a new effective date. Any change that affects how information is handled will be described in plain language.
Contact the developer
Questions about this policy, or about how the app works, are welcome. Emails are usually answered within a few days.
kuanmeng.see@gmail.com