Comparison

BrainTree vs ガチ2桁九九

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

Head to head
About

BrainTree

Features
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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!

About

ガチ2桁九九

Features
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ガチ2桁九九は、2桁×2桁の暗算力を集中的に鍛えるトレーニングアプリです。 11の段から15の段までを無料で練習でき、答えを入力しながらテンポよく反復できます。正答率、平均タイム、練習数を記録し、日々の成長を確認できます。 プレミアム機能では、16の段以降、20〜99の段、ランダム2桁×2桁、平方数モード、苦手問題トレーニングを解放できます。 暗算を速くしたい人、計算の基礎力を鍛えたい人、2桁九九をゲーム感覚で反復したい人に向けたアプリです。

Screenshots

BrainTree4 screens
ガチ2桁九九4 screens

Verdict

The call

The clearest difference is in-app purchases: BrainTree at none against ガチ2桁九九's 1. BrainTree also leads on update cadence (weekly vs every 3 months) and device support (4 vs 2). On price, ads and iOS requirement 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. ガチ2桁九九 sells 1 one-off in-app purchase. BrainTree asks for nothing beyond the download.

UpkeepUpdate frequency

BrainTree ships an update weekly, ガチ2桁九九 every 3 months. The most recent releases landed on October 12, 2026 and September 30, 2026 respectively.

Scorecard3 real differences · 3 level
BrainTree versus ガチ2桁九九: the parameters behind the verdict, then further details
ParameterBrainTreeガチ2桁九九
PriceFreeFree
Update frequencyWeekly — betterEvery 3 months
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPod
Requires iOS15.015.0
Further details — not scored
Size301 MB24 MB
Age rating4+4+
DeveloperSHUHEI YAMADAkotobaz

In-app purchases

None

BrainTree

No in-app purchases

1 purchases

ガチ2桁九九

One-time1
  • プレミアム解放$2.99

Questions

Is BrainTree free?
BrainTree is free to download, with no in-app purchases.
Is ガチ2桁九九 free?
ガチ2桁九九 is free to download, with in-app purchases available.
Do BrainTree or ガチ2桁九九 have ads?
Neither BrainTree nor ガチ2桁九九 shows ads.
Which is updated more often, BrainTree or ガチ2桁九九?
BrainTree ships an update weekly, and ガチ2桁九九 every 3 months. Most recently, BrainTree was updated on October 12, 2026 and ガチ2桁九九 on September 30, 2026.

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