Comparison

マハラジャ算数 vs Mental Math for Work

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

Head to head
About

マハラジャ算数

Features
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◎計算が速くなる、新しい習慣。 インド式計算で、暗算力と脳力を同時に鍛えよう。 「マハラジャ算数」は、小学生から大人まで楽しめる計算トレーニング&学習アプリです。 ◎こんな人におすすめ ・計算を速くしたい ・暗算力を伸ばしたい ・子どもの学習習慣をつけたい ・スキマ時間で脳トレしたい ・最近、頭の回転が気になる ◎ 主な機能 ■ 学ぶモード インド式計算のルールをステップ形式でわかりやすく解説 ■ 鍛えるモード ・60秒タイムアタック ・ミスするまで続くチャレンジ(サバイバル) ◎ ゲーム感覚で計算力アップ 特徴 ・シンプルで直感的な操作 ・達成感のあるトレーニング設計 ・継続したくなる仕組み(記録・称号) ◎ラジャ先生と学ぶ インドの先生「ラジャ先生」と一緒に、楽しく学びながらステップアップ。 今日から、計算を“得意”にしよう。

About

Mental Math for Work

Features
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Mental Math for Work helps you practice quick estimates for meetings, sales calls, planning reviews, product discussions, and case interviews. Train with business-context drills for gross margin, discounts, KPI, CVR, CPA, SaaS metrics, workload estimates, sales tax estimates, and engineering rough calculations. Features - Choose a daily goal of 3, 5, 7, or 10 questions - Choose practice days and optional reminders at a time that works for you - See your completed practice days this week - Role-based courses for sales, PM/PdM, planning, engineering management, retail/e-commerce, case interviews, and basics - Category practice for the work math you need most - Estimate OK judgment for practical ranges, not only exact answers - Weak-point review, time attack, and meeting mode - Accuracy, speed, estimate OK rate, and category trends Start with the free daily quest. Premium unlocks category practice, weak-point review, speed training, meeting mode, and detailed progress insights. Build the number reflexes you need at work, one short session at a time. Terms of Use: https://shigoto-no-anzan.pages.dev/legal/terms/ Privacy Policy: https://shigoto-no-anzan.pages.dev/legal/privacy/ Apple Standard EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

マハラジャ算数4 screens
Mental Math for Work4 screens

Verdict

The call

The clearest difference is in-app purchases: マハラジャ算数 at none against Mental Math for Work's 2. マハラジャ算数 also leads on update cadence (every 3 days vs every 9 days). Mental Math for Work's advantage is ads (none vs shown). On price, device support 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. Mental Math for Work sells 2 in-app purchases, starting at $1.99 per month. マハラジャ算数 asks for nothing beyond the download.

UpkeepUpdate frequency

マハラジャ算数 ships an update every 3 days, Mental Math for Work every 9 days. The most recent releases landed on October 3, 2026 and October 14, 2026 respectively.

Scorecard3 real differences · 3 level
マハラジャ算数 versus Mental Math for Work: the parameters behind the verdict, then further details
Parameterマハラジャ算数Mental Math for Work
PriceFreeFree
Update frequencyEvery 3 days — betterEvery 9 days
AdsYesNo — better
In-app purchasesNo — betterYes
DevicesiPhoneiPhone, iPad — better
Requires iOS17.6 — better18.0
Further details — not scored
Size27 MB15 MB
Age rating4+4+
DeveloperYutaro TakeiShota Morioka

In-app purchases

None

マハラジャ算数

No in-app purchases

2 purchases

Mental Math for Work

Subscriptions1
  • Premium Monthly$1.991 Month
One-time1
  • Premium Lifetime$9.99

Questions

Is マハラジャ算数 free?
マハラジャ算数 is free to download, with no in-app purchases.
Is Mental Math for Work free?
Mental Math for Work is free to download, with in-app purchases available.
Do マハラジャ算数 or Mental Math for Work have ads?
マハラジャ算数 shows ads; Mental Math for Work does not.
Which is updated more often, マハラジャ算数 or Mental Math for Work?
マハラジャ算数 ships an update every 3 days, and Mental Math for Work every 9 days. Most recently, マハラジャ算数 was updated on October 3, 2026 and Mental Math for Work on October 14, 2026.

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