Comparison

百Math vs Math Grid Calculation Training

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

百Math

This app helps users improve their mental arithmetic skills through a 100-problem calculation trainer. It offers various modes, progress tracking, and a global leaderboard to encourage practice and competition. A clean design and home screen widget provide convenient access.

Highlights
  • 100-problem calculation trainer
  • Addition, Subtraction, Multiplication, Division modes
  • Progress tracking (streak, average time, charts)
  • Global ranking system
  • Distraction-free design
  • Home screen widget
Features
Read full description

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

About

Math Grid Calculation Training

Features
Read full description

Math Grid Calculation Training is a compact mental math training app inspired by the classic 100-cell calculation method. Compared to traditional 100-cell math exercises, this mini-sized version is quicker and easier to play, making it perfect for short study sessions and spare moments throughout the day. “Regular hundred cell calculation takes too long…” “I want quick brain training and math practice…” Math Grid Calculation Training is the perfect solution for anyone looking for a fast and enjoyable arithmetic training experience. Practice addition, subtraction, multiplication, and other math problems while improving your: * mental arithmetic skills * calculation speed * concentration * accuracy It is recommended for: * elementary school math practice * daily arithmetic training * brain training for adults * quick mental math exercises 【Features】 * Mini-sized grid math training * Quick and easy mental arithmetic practice * Perfect for short breaks and spare time * Improve both speed and accuracy * Fun for both kids and adults * Simple and easy-to-use controls Whether you enjoy math practice, brain training, or daily calculation exercises, Math Grid Calculation Training makes it easy to build a consistent learning habit. Challenge yourself with quick and compact grid math puzzles anytime, anywhere! 【Benefits of Grid Math Training】 Grid math training is a learning method that improves mental arithmetic and calculation speed by repeatedly solving math problems in a grid format. This style of training is also widely known through Professor Kageyama’s arithmetic exercises. Although the rules are simple, regular practice can provide many benefits: * Improve mental math ability Repeated calculation practice helps you solve arithmetic problems faster in your head. * Increase calculation speed Solving many problems within a limited time naturally improves speed. * Strengthen concentration Filling in the grid continuously helps improve focus and attention. * Improve accuracy You can train yourself to calculate quickly while reducing mistakes. * Build study habits Short practice sessions make it easier to continue daily learning and brain training. * Brain training and cognitive exercise Grid math is also popular among adults as a form of brain training and mental exercise. Grid math training is useful not only for elementary school students learning arithmetic, but also for: * middle school students * high school students * adults who want to improve mental math skills By practicing a little every day, you can gradually improve both speed and accuracy while gaining confidence in calculation. Small size of 100-cell calculation: math practice exercise to improve your brain!

Screenshots

百Math4 screens
Math Grid Calculation Training4 screens

Verdict

The call

The clearest difference is in-app purchases: 百Math at none against Math Grid Calculation Training's 1. 百Math also leads on update cadence (every 9 days vs every 2 months). Math Grid Calculation Training's advantage is iOS requirement (15.0 vs 26.0). On price, ads and device support there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Math Grid Calculation Training sells 1 one-off in-app purchase. 百Math asks for nothing beyond the download.

UpkeepUpdate frequency

百Math ships an update every 9 days, Math Grid Calculation Training every 2 months. The most recent releases landed on October 18, 2026 and October 28, 2026 respectively.

Scorecard3 real differences · 5 level
百Math versus Math Grid Calculation Training: the parameters behind the verdict, then further details
Parameter百MathMath Grid Calculation Training
PriceFreeFree
Positive reviews50.0% of reviews—
Update frequencyEvery 9 days — betterEvery 2 months
AdsYesYes
In-app purchasesNo — betterYes
MonetizationAd-supported—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS26.015.0 — better
Further details — not scored
Size18 MB96 MB
Age rating4+4+
Developernaoya saitoMasaki Kanno

In-app purchases

None

百Math

No in-app purchases

1 purchases

Math Grid Calculation Training

One-time1
  • Remove Ads$2.99

Questions

Is 百Math free?
百Math is free to download, with no in-app purchases.
Is Math Grid Calculation Training free?
Math Grid Calculation Training is free to download, with in-app purchases available.
Do 百Math or Math Grid Calculation Training have ads?
Both 百Math and Math Grid Calculation Training show ads.
Which is updated more often, 百Math or Math Grid Calculation Training?
百Math ships an update every 9 days, and Math Grid Calculation Training every 2 months. Most recently, 百Math was updated on October 18, 2026 and Math Grid Calculation Training on October 28, 2026.

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