Conquer Statistics

Five parts, 106 knowledge cards, and 30 practice sets — from describing data to inference and regression.

• 106 knowledge cards and 30 trilingual practice sets
• Native histograms, boxplots, normal curves, and regression plots
• Fully offline after the first download
• Progress stays on your device; no account needed
• Traditional Chinese, Simplified Chinese, and English

Free to download. No ads, no in-app purchases, and no account needed. The first launch needs a network connection to download the lessons; afterwards it works offline.

• Google Play (Android): https://play.google.com/store/apps/details?id=com.coretrix.conquerstatistics
• App Store (iOS, under review): https://apps.apple.com/app/id6831926198
• Official website: https://coretrix-tech.com/conquer-statistics/en/index.html

This app requires no account or login. It contains no ads, no analytics SDK, and no third-party tracking. To download lessons and understand app usage, the app contacts our content server with a randomly generated installation identifier. The server records the installation identifier, IP address, country derived from the IP address, platform (iOS or Android), operating system version, app version, first and last used times, and request count. This data is used for content delivery, access recognition, operations, and usage statistics. It is not used for cross-app tracking and is never sold or shared. The installation identifier is not a name, email address, or account. Your learning progress, answer history, and settings stay on your device and are never uploaded. Deleting the app deletes them. The server uses HTTPS and HMAC signing. It does not keep access logs for ordinary users (the application layer still records the usage data described above) and does not use advertising identifiers. Usage data is retained for 90 days and automatically deleted when an installation has not been seen again. Access grants are retained until revoked. There are currently no ads. If ads or paid features are added later, this policy and the store privacy labels will be updated first. Contact: [email protected]

Need help? Email [email protected] with your app version, device model, and a description of the issue. FAQ • The first launch needs internet to download lessons; after that the app works offline. • Progress stays on your device; deleting the app clears it. • If content does not update, check your connection and reopen the app. • If you are a tester and need advanced units, copy your installation ID from Settings → Installation ID and send it to us.