百Math vs BrainTree
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 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
BrainTree
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このアプリでは、以下の4つの分野をバランスよく鍛えることができます。 記憶力:数字や図形を覚えるチャレンジで記憶力を強化 注意力・集中力:一瞬の判断力や切り替え力を試すミニゲームが充実 計算・論理力:素早く正確な計算や推論で思考のキレをアップ 発想力・柔軟思考:常識にとらわれない発想を楽しめる問題を収録 飽きずに続けられる設計で、毎日の脳活習慣にぴったり! さあ、あなたの脳力を限界まで引き出そう!
Screenshots
Verdict
The clearest difference is ads: BrainTree at none against 百Math's shown. BrainTree also leads on device support (4 vs 2) and iOS requirement (15.0 vs 26.0). On price, update cadence and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
百Math ships an update every 9 days, BrainTree weekly. The most recent releases landed on October 30, 2026 and October 28, 2026 respectively.
| Parameter | 百Math | BrainTree |
|---|---|---|
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| Update frequency | Every 9 days | Weekly — better |
| Ads | Yes | No — better |
| In-app purchases | No | No |
| Monetization | Ad-supported | — |
| Devices | iPhone, iPad | iPhone, iPad, iPod, Mac — better |
| Requires iOS | 26.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 18 MB | 247 MB |
| Age rating | 4+ | 4+ |
| Developer | naoya saito | SHUHEI YAMADA |
In-app purchases
百Math
No in-app purchases
BrainTree
No in-app purchases









