Comparison

100 Squares Calc vs 百Math

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

Head to head
About

100 Squares Calc

Practice basic math operations with timed challenges and progress tracking. Offers various modes, keyboard types, and mini-games to enhance learning and identify weak points. Supports Bluetooth keyboards and printing custom questions.

Highlights
  • Multiple math operation modes
  • Customizable keyboard types
  • Bluetooth keyboard support
  • Progress tracking and analytics
  • Study and edit modes
  • Mini-games for practice
  • Prefecture-based ranking
Features
Read full description

Thanks for 1,100,000 DLs! Enjoy the 100 squares calculation! From top to bottom, you make answers in squares. As soon as you make answer, it is scored. When you fill all squares by answers, your answer time is recorded. Let's enjoy it! ■4 modes: - Addition - Subtraction - Multiplication - 4 operations(Addition, Subtraction, Multiplication, Division) ■4 keyboard type: - Normal - Calculator - Calculator(Right-Side) - Calculator(Left-Side) - iPhone ■Bluetooth Keyboard: - You can use Bluetooth keyboard (in game scene) ■Prefecture mode: - Let's join the ranking with your prefecture. ■Graph mode: - You can confirm the history of your records. ■Analytics mode: - You can confirm statistics of each question. You can find your weak point. 各問題の統計情報を見て、自分の弱点を見つけます ■Study mode: - You can study at your pace. ■Edit mode: - You can make question and print it. (You need a printer that corresponds to "AirPrint".) ■Limited answer mode (more than 0 only) - In only subtraction, you can select limited answer mode. (large number - small number > 0) ■Mini Games (updated in 2024.Jan) - Touch Practice - Answer Number - How many? - Analog Clock - Kraepelin - Rock,Paper,Scissors - Fill Spaces - Touch in Order - Stepping Stones - L & R - Gage MAX - Pyramid - Side Stepping - Count Blocks - Quick Touch - Color Name - Extra One - Vertex - 10 or Over - Picking Chestnuts ■Bonus - Make 10 - Multiplication Table

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'd 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 ・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

Screenshots

100 Squares Calc4 screens
百Math4 screens

Verdict

The call

The clearest difference is in-app purchases: 百Math at none against 100 Squares Calc's 2. 百Math also leads on update cadence (weekly vs monthly). 100 Squares Calc's advantage is review sentiment (75% vs 50%) and iOS requirement (15.6 vs 18.0). 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. 100 Squares Calc sells 2 one-off in-app purchases. 百Math asks for nothing beyond the download.

UpkeepUpdate frequency

100 Squares Calc ships an update monthly, 百Math weekly. The most recent releases landed on September 19, 2026 and August 11, 2026 respectively.

Scorecard5 real differences · 5 level
100 Squares Calc versus 百Math: the parameters behind the verdict, then further details
Parameter100 Squares Calc百Math
PriceFreeFree
Rating4.9 (8 ratings) — better—
Positive reviews75.0% of reviews — better50.0% of reviews
Number of ratings8 — better—
Update frequencyMonthlyWeekly — better
AdsYesYes
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesAd-supported — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.6 — better18.0
Further details — not scored
Size28 MB18 MB
Age rating4+4+
Developerbe-stylenaoya saito

Customer experience

100 Squares Calc

All ratings8 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews24 reviews
Positive75.0%
Neutral12.5%
Negative12.5%

百Math

Written reviews2 reviews
Positive50.0%
Neutral50.0%
Negative0.0%

In-app purchases

2 purchases

100 Squares Calc

One-time2
  • Color Customization$1.99
  • Hide Ads$3.99
None

百Math

No in-app purchases

Questions

Is 100 Squares Calc free?
100 Squares Calc is free to download, with in-app purchases available.
Is 百Math free?
百Math is free to download, with no in-app purchases.
Do 100 Squares Calc or 百Math have ads?
Both 100 Squares Calc and 百Math show ads.
Which is updated more often, 100 Squares Calc or 百Math?
100 Squares Calc ships an update monthly, and 百Math weekly. Most recently, 100 Squares Calc was updated on September 19, 2026 and 百Math on August 11, 2026.

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