Mint Graphing Calculator
A calculator and graphing app for Android that writes math the way you do on paper. No ads, no account, no tracking.
What it does
- integral from 0 to 2 of 3x dx
- Math that looks like mathFractions stack, roots and exponents sit where they belong, and integrals show their limits as you type.
- x² + y² = 9
- Cartesian and polar graphsGraph up to six equations in any form, then pinch to zoom, trace, and find intercepts, peaks, and intersections.
- √8 = 2√2
- Exact answersSwitch between decimals, fractions, and exact form with roots and π kept intact.
- R² = 0.998
- Regression from your dataEnter points and fit linear, quadratic, cubic, exponential, logarithmic, or power curves, with r and R².
- det A, A−1
- Matrices and calculusMatrices up to 99×99, derivatives, integrals, sums, limits, and Taylor series.
- ∅
- Nothing collectedEverything stays on your phone, and the app works fully offline.
Privacy policy
Effective October 25, 2026
This policy covers the Mint Graphing Calculator app for Android, made by TurboTortus ("we"). In short: the app doesn't collect, store, or share your personal information.
Information we collect
None. The app has no accounts, no advertising, and no analytics or tracking. We don't collect your name, email address, location, contacts, device identifiers, or usage data.
Data stored on your device
Your calculation history, settings, stored variables, matrices, and graph equations are saved only on your phone so they're there the next time you open the app. They're never sent to us or anyone else. You can delete them in the app's Settings, or by uninstalling the app.
Permissions
The app doesn't ask for any permissions that need your approval, such as camera, location, contacts, microphone, or files. It may use standard Android permissions that are granted automatically, such as vibration for button feedback.
Clipboard
When you copy or paste, the app uses your phone's clipboard only for what you choose to copy or paste. Nothing is sent anywhere.
Purchases
If the app offers an optional upgrade, purchases are handled by Google Play. We never see your payment details. To confirm a purchase, the app may use a purchase service (RevenueCat), which receives an anonymous app identifier and the purchase record, but not your name or email address. Google's handling of your payment is covered by the Google Privacy Policy.
Emails you send us
If you email us for support or feedback, we receive your email address and whatever you include in the message. We use it only to reply, don't share it, and will delete it if you ask.
Children
The app collects no personal information from anyone, including children under 13.
Changes to this policy
If this policy changes, we'll update it on this page and change the effective date above.
Contact
Questions about privacy: turbotortus@outlook.com
Support
Found a bug or have an idea? Email turbotortus@outlook.com, or use Send feedback in the app's Settings. Including your phone model and the app version (shown in Settings → About) helps us fix things faster.