HyakuRenZan vs 百Math

The brain training application which trains concentration, reaction power, and calculation power! The easy rule which calculates the number located in each line vertically and horizontally. You will Play every day and will heighten the "brain's ability"! --- How to play HyakuRenZan is a game which competes for the time located in each line vertically and horizontally to calculate arrangement numbers at random and fill the field of 10x10 (the easy mode is 5x5). Game mode can be chosen from three kinds, addition, subtraction, and multiplication. Difficulty has easiness,normal and hard. The easy mode will be completion if a number buries all of the field of 5x5 by a single figure. The normal mode will be completion if a number buries all of the field of 10x10 by a single figure. The hard mode will be completion if a number buries all of the field of 10x10 by double figures. --- Assessment system Five steps of evaluations are performed by Speed of calculation for every input. Since evaluation of "Excellent", "Great", "Good", "Fine", and "Bad" is performed in real time, it is followed as the guide of calculation speed. --- Visual records management The results for the 100 past are saved at game mode and given difficulty, and, in addition, the ranking by the 100th place of the past is also saved automatically. Record is displayed by the graph and can check change of calculation speed at a glance. --- GameCenter You can register results into GameCenter. Compete with the expert of HyakuRenZan in the world!

When did you last do mental math without reaching for your phone? 百Math was built by an engineer who realized he had become too dependent on calculators and AI to do even simple arithmetic. This app is his answer — and maybe yours too. Trusted by users for 5 years, 百Math is a no-frills 100-problem calculation trainer. Solve all 100 as fast as you can, track your progress, and compete on the global leaderboard. 【Key Features】 ・4 Modes: Addition, Subtraction, Multiplication, and Division ・Schulte Table — a visual search game that sharpens your peripheral vision and focus ・Gorbov Table — an advanced Schulte Table rule where you alternate between ascending red numbers and descending black numbers ・Flash Calculation — a new mode that trains your instant recall ・Ghost Race — compete against your personal best ・Heatmap to spot your weak spots ・Clean, distraction-free design ・Global ranking system ・Streak counter, average time, and time chart to track improvement ・Home screen widget for quick access