Euclid Math

Mental math training that fits in your pocket.

One-time purchase — no subscriptions

What you get

🧮

10 Operations

Addition, subtraction, multiplication, division, squares, square roots, exponents, percentages, fractions, and mixed mode.

📈

Adaptive Difficulty

Starts easy and ramps up as you improve — or pick a fixed range from 1–100 up to 1,000–10,000.

⏱️

Two Game Modes

Race the clock in Timed mode, or work through a fixed set of problems in Task mode.

📊

Progress Tracking

Accuracy, speed, streaks, and full session history so you can see exactly where you're improving.

💡

Mental Math Tips

Built-in strategies and techniques to help you solve problems faster in your head.

🔒

100% Private

No accounts, no analytics, no tracking. Your data stays on your device — always.

Need help?

If you have questions, feedback, or run into any issues, feel free to reach out.

Contact Support

opacity: 0.9; margin-top: 0.5rem; } .hero .price { display: inline-block; margin-top: 1.5rem; padding: 0.5rem 1.5rem; background: rgba(255,255,255,0.2); border-radius: 50px; font-weight: 600; font-size: 0.95rem; } /* Sections */ .section { max-width: 680px; margin: 0 auto; padding: 3rem 1.5rem; } .section h2 { font-size: 1.5rem; font-weight: 700; margin-bottom: 1.5rem; text-align: center; } /* Features */ .features { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; } @media (max-width: 500px) { .features { grid-template-columns: 1fr; } } .feature { padding: 1.25rem; background: white; border-radius: 12px; border: 1px solid #e5e5ea; } .feature .icon { font-size: 1.5rem; margin-bottom: 0.5rem; } .feature h3 { font-size: 1rem; font-weight: 600; margin-bottom: 0.25rem; } .feature p { font-size: 0.875rem; color: #6e6e73; line-height: 1.5; } /* Support */ .support { background: #f5f5f7; border-radius: 16px; padding: 2rem; text-align: center; } .support h2 { margin-bottom: 0.75rem; } .support p { color: #6e6e73; margin-bottom: 1rem; } .support a.email { display: inline-block; padding: 0.6rem 1.5rem; background: #4f46e5; color: white; text-decoration: none; border-radius: 8px; font-weight: 600; font-size: 0.95rem; } .support a.email:hover { background: #4338ca; } /* Footer */ .footer { text-align: center; padding: 2rem 1.5rem; color: #86868b; font-size: 0.85rem; border-top: 1px solid #e5e5ea; max-width: 680px; margin: 0 auto; } .footer a { color: #6e5ce6; text-decoration: none; } .footer a:hover { text-decoration: underline; }