Train Your
Mental Math.
Streak a Math! is a compact mental arithmetic trainer for iPhone. Pick a mode — Addition, Subtraction, Multiplication, or Division — choose your level, and get through as many exercises as you can in 60 seconds.
An adaptive algorithm continuously adjusts difficulty to your pace. Streaks keep you coming back. Your progress history, reaction times, and settings stay entirely on your device — no account, no cloud, no tracking.
Privacy Policy · Effective March 6, 2025
This is our
Privacy Policy.
Streak a Math! stores data exclusively on your device. No servers. No analytics. No ads. Here is exactly what we store and why.
What We Store Locally
Via UserDefaults: your username, streakCount, lastCompletedDate, lastShieldDate, up to 20 sessions, prefersLightMode, and appLanguagePreference. Each session holds exercises, answers, correctness, reaction time, score, date, mode, and adaptive level. An adaptive engine snapshot is also saved locally to maintain training continuity.
How Data Is Created
All data comes solely from your own inputs and offline calculations inside the app. There is no server connection — no API calls, no background sync, no cloud storage. The app works entirely without internet.
How We Use Your Data
Exclusively to run the app: show your progress and streak, adapt exercises to your level via the adaptive engine, update your Home Screen widget, and remember your language & display preferences. Nothing else.
No Third-Party Sharing
We share nothing with anyone. Streak a Math! contains zero tracking SDKs, zero advertising frameworks, and zero analytics services. Your data never leaves your device — period.
Retention & Storage Duration
Data stays on your device until you delete it or uninstall the app. Session history is automatically capped at 20 entries. Widget data is shared only within your own app group (group.Danio.minute-math) via iOS shared defaults — inaccessible to other apps. No copies exist on any server.
Deleting Your Data
Single session: In "Recent Sessions" swipe left → Delete. Everything: Remove the app via Settings → General → iPhone Storage → Streak a Math! → Delete App. Widget data is removed at the same time. Deletion is instant and permanent.
Children's Privacy
Streak a Math! does not collect personal data from anyone, including children under 13. Because nothing is transmitted, the app is suitable for use by children under parental supervision per Apple's guidelines.
Policy Updates
If this policy ever changes, the updated version will appear here with a revised date. We will never introduce data collection or third-party sharing without a clear, prominent notice in the app.