Comparison

N vs ワーキングメモリトレーニング

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

Head to head
About

N

Features
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I wanted to play "Oni Keisan" on my iPhone! That's why I created this N-Back brain training app. What is this training? Solve calculations while remembering the answers from a few questions back. Juggling "memorizing" and "calculating" at the same time gives your brain a real workout. Features ◆ Two Input Modes - Tap Mode: Quickly tap the answer - Handwriting Mode: Write numbers directly ◆ Build Daily Habits - Set daily play goals - Track your streak - Record how you're feeling today ◆ Track Your Progress - Accuracy trends - Level-up history - Play history ◆ Customize Your Way - Adjust question count & time limits - 3 color themes - iPhone & iPad support Perfect For - Those who want to play Oni Keisan without a dedicated game console - Anyone looking for a quick mental exercise - People who want to build a daily habit Just 5 minutes a day. A casual brain training experience.

About

ワーキングメモリトレーニング

Features
Read full description

簡単操作でワーキングメモリや暗算のトレーニングができるアプリです。 音声で単語や数字が読み上げられます。 バックグラウンド再生にも対応。 スキマ時間で手軽にトレーニング可能です! 【モード紹介】 ・聞こえた数字を逆から言う(「3,4,5」→「5,4,3」) ・聞こえた単語を逆から言う(「りんご」→「ごんり」) ・聞こえた単語を50音順に並べ替える ・N個前に聞こえた単語を言う(Nバック課題) ・たし算 ・かけ算 【こんな方におすすめ】 ・ワーキングメモリを鍛えたい方 ・小学校受験を控えているお子様のいるご家庭の方 ・ボケ防止のアプリを探している方 ・耳から入ってくる情報の処理を練習したい方 ・簡単なたし算の暗算を練習したい方 ・2桁のかけ算の暗算を練習したい方 【クレジット】 ・イラスト:坂本アヒル 様 ・音声についてはアプリ内に掲載しています

Screenshots

N4 screens
ワーキングメモリトレーニング4 screens

Verdict

The call

The clearest difference is update cadence: N at every 4 days against ワーキングメモリトレーニング's every 6 weeks. ワーキングメモリトレーニング's advantage is iOS requirement (18.6 vs 26.0). On price, ads, in-app purchases 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. N sells 1 in-app purchase, starting at $0.99 per month and ワーキングメモリトレーニング sells 2 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

N ships an update every 4 days, ワーキングメモリトレーニング every 6 weeks. The most recent releases landed on October 9, 2026 and October 7, 2026 respectively.

Scorecard2 real differences · 4 level
N versus ワーキングメモリトレーニング: the parameters behind the verdict, then further details
ParameterNワーキングメモリトレーニング
PriceFreeFree
Update frequencyEvery 4 days — betterEvery 6 weeks
AdsYesYes
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPad
Requires iOS26.018.6 — better
Further details — not scored
Size21 MB55 MB
Age rating4+4+
Developerchunson yamadaTakahiro Kogawa

In-app purchases

1 purchases

N

Subscriptions1
  • 1ヶ月プラン$0.991 Month
2 purchases

ワーキングメモリトレーニング

One-time2
  • Remove Ads$1.99
  • プレミアム機能$1.99

Questions

Is N free?
N is free to download, with in-app purchases available.
Is ワーキングメモリトレーニング free?
ワーキングメモリトレーニング is free to download, with in-app purchases available.
Do N or ワーキングメモリトレーニング have ads?
Both N and ワーキングメモリトレーニング show ads.
Which is updated more often, N or ワーキングメモリトレーニング?
N ships an update every 4 days, and ワーキングメモリトレーニング every 6 weeks. Most recently, N was updated on October 9, 2026 and ワーキングメモリトレーニング on October 7, 2026.

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