Grapheus vs Euclid Math Trainer

The complete Greek-English Lexicon by Henry George Liddell and Robert Scott (more than 116 000 entries). Search using Greek characters or Beta code. Search for English words in the text of the definitions is also possible (full text search). A few classical texts, including Homer's Iliad and Odyssey and the 4 Gospels, in bilingual version. Document reader which allows to analyze inflected forms in the body of the text, and to search the corresponding entry in the database.

Euclid is a focused mental math trainer designed to build speed and confidence with numbers. No ads, no subscriptions, no data collection — just you and the math. Choose from 10 operation types — addition, subtraction, multiplication, division, squares, square roots, exponents, percentages, fractions, and mixed operations — and toggle each one on or off to build the exact training session you want. Pick your difficulty: • 1–100 for warm-ups and fundamentals • 100–1,000 for intermediate practice • 1,000–10,000 for serious number crunching • Adaptive mode, which starts easy and raises the bar as you improve Play your way with two game modes: race against the clock in Timed mode, or work through a fixed set of problems in Task mode. Track your progress over time with detailed stats — accuracy, speed, streaks, and session history — so you can see exactly where you're improving and where to focus next. Need a boost? The built-in tips section offers practical mental math strategies to help you solve problems faster. Euclid is a one-time purchase. Pay once, own it forever. No recurring fees, no in-app purchases, no hidden costs. Your data stays on your device. Euclid collects absolutely nothing — no accounts, no analytics, no tracking. Your practice is yours alone. Whether you're a student preparing for exams, a professional who wants quicker calculations, or anyone who enjoys the satisfaction of solving problems in their head — Euclid is your daily mental gym.