百Math vs 100 Square Calc
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 100-problem calculation trainer
- Addition, Subtraction, Multiplication, Division modes
- Progress tracking (streak, average time, charts)
- Global ranking system
- Distraction-free design
- Home screen widget
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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
100 Square Calc
This app offers a 10x10 grid for practicing addition and multiplication. It tracks your progress with time measurements and graphs, helping to improve mental arithmetic and brain training. Features include smooth input, personal best records, and customization options.
- 100 square addition practice
- 100 square multiplication practice
- Time measurement and graphing
- Personal best and average time tracking
- Customizable themes and dark mode
- Smooth numeric input
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10x10 simple 100 square calculation. It supports addition and multiplication, and can record time on a graph. Improves calculation skills and mental arithmetic skills, and helps train the brain. Functions/Features - Addition 100 Squares Calculation - Multiplication 100 Squares Calculation - Smooth numeric input - Measure your time - Record in graph - Display personal best/average time - Customization (dark mode, theme colors) - Simple design compliant with Material Design
Screenshots
Verdict
The clearest difference is in-app purchases: 百Math at none against 100 Square Calc's 1. 百Math also leads on update cadence (weekly vs every 2 months). 100 Square Calc's advantage is iOS requirement (12.0 vs 18.0). On price, review sentiment, 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
Both are free to download. 100 Square Calc sells 1 one-off in-app purchase. 百Math asks for nothing beyond the download.
百Math ships an update weekly, 100 Square Calc every 2 months. The most recent releases landed on August 11, 2026 and September 23, 2026 respectively.
| Parameter | 百Math | 100 Square Calc |
|---|---|---|
| Price | Free | Free |
| Rating | — | 5.0 (1 ratings) — better |
| Positive reviews | 50.0% of reviews | 50.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Weekly — better | Every 2 months |
| Ads | Yes | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 18.0 | 12.0 — better |
| Further details — not scored | ||
| Size | 18 MB | 60 MB |
| Age rating | 4+ | 4+ |
| Developer | naoya saito | enoiu |
Customer experience
百Math
100 Square Calc
In-app purchases
百Math
No in-app purchases
100 Square Calc
- Remove Ads$1.99
