A free, offline, customizable mental math trainer designed for speed, accuracy, and user control — built for users who want a clean and focused tool.
🔗 Try Without Installation: GitHub Hosted Site
⬇️ Download the App: GitHub Releases
Most mental math tools today are:
- App-only and limited on desktop
- Filled with distractions or paywalls
- Missing serious customization for learners and educators
Mental Math Trainer Pro is my solution — a clean, fast, local-first math trainer with full control, designed to help users build accuracy, confidence, and speed in arithmetic without fluff.
- ➕ ➖ ✖️ ➗ All Operations — Including mixed-mode practice
- 🕒 Practice Modes — Timed or Fixed problem sets
- 🎚️ Custom Ranges — Control difficulty by setting number ranges
- 🚨 Mistake Limits — Fail/Restart rules for discipline-based learning
- 🔄 Auto-Submit + Timeout — Time-based pressure if desired
- 🔊 Audio Feedback — Success chimes, error buzzers
- 📊 Live Stats — Track accuracy and speed in real-time
- 📁 Export Session Data — Save your results as
.txt - 🧠 Memory Modes — Visual + audio-only training for mental retention
- 🎨 Full Theme Customization — Change colors, backgrounds, and UI style
- 💾 No Account Needed — All data saved locally via
localStorage
- Vanilla JS + HTML/CSS
- Tone.js for sound feedback
- Chart.js for real-time pie chart visuals
- No frameworks or build tools — everything runs client-side.
- ❌ No ads
- ❌ No tracking
- ❌ No analytics
- ✅ Everything works offline
- ✅ Settings & history are stored only on your machine
This app was built for clarity, not profit.
Found a bug or want to suggest a feature?
📧 Email: PotatoSlicer18@protonmail.com
MIT License — free to use, fork, modify, and share.
A credit is appreciated but not required.
Built for learners. Designed for mastery. ✨