A lightweight Android app for practicing derivatives and integrals (mainly trig). Think Kahoot or Duolingo but faster, lighter and without the corporate bloat feel.
I needed practice for my ODE class but couldn't find any good resources online. Every mobile app I tried was slow, bloated with tokens and currencies, and constantly hit me with subscription popups. So I built my own - no ads, no accounts, no BS. Just math practice.
And yes the name is ironic and is a reference to Big Shaq's - Man's Not Hot: "2 plus 2 is 4 minus 1, that's 3, quick maths."
- Practice Mode - Work through topic groups with best score tracking
- Infinity Mode - Endless random questions with streak counter
- Haptic & Sound Feedback - Vibrations and audio cues for answers
- Progress Persistence - Scores saved locally
| Menu | Question | Hint |
|---|---|---|
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| Correct Answer | Wrong Answer |
|---|---|
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Derivatives: Basic Trig, Inverse Trig, Hyperbolic, Exponential & Log, Power Rule
Integrals: Basic Trig, Inverse Trig Results, Hyperbolic, Exponential & Log, Power Rule, U-Sub, Integration by Parts, Trig Powers
- Wrong answer sound may feel delayed
- Hints are sometimes useless and other times make no sense
- Small topic pool / limited question variety
- Formula text may get cut off when you get the wrong answer popup
- Android 10+ (API 29)
- ARM64 device
- Unsigned APK - may need to enable "Install from unknown sources"
- Kotlin with modern coroutines and Flow
- Jetpack Compose declarative UI with custom theming
- MVVM Architecture using ViewModel and state hoisting
- Material Design 3 with dynamic color support
- SoundPool for low-latency audio feedback
- SharedPreferences for lightweight local persistence
- R8 optimization with ProGuard for release builds
- Adaptive haptics using Android's VibrationEffect API
Download the latest APK from Releases and install it on your device.
Alternatively, build it yourself:
git clone https://github.com/poninka/3quickmaths.git
Open in Android Studio. Build. Run.
This project is licensed under the GNU Affero General Public License v3.0 (AGPL-3.0).
Personal & Non-Commercial Use: This software is free for personal and non-commercial internal use.
Commercial Use: Any commercial use, redistribution, or resale requires a separate commercial license from the author. Contact the author for licensing inquiries.
See the LICENSE file for full license text.