Comparison

脳トレ21 vs なんちゃって21

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

Head to head
About

脳トレ21

Features
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足して21の数字をつくれ! ブラックジャック風新感覚脳トレパズルです。 簡単操作のゲームであなたの脳年齢を診断します。 「脳トレ21」はシンプルでハマり度120%の脳トレゲームです。 操作方法は数字をタップするだけ! 遊べば遊ぶほど脳が活性化されます。 あなたの脳は何歳ですか??

About

なんちゃって21

Features
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ブラックジャック風のお手軽トランプゲーム! 2択式だからだれでも簡単に遊べます! 遊び方はとってもかんたん! トランプを追加する枚数を選んで強い役をつくってください 究極の暇つぶしゲームを エンジョイプレイ!

Screenshots

脳トレ213 screens
なんちゃって213 screens

Verdict

The call

The clearest difference is update cadence: なんちゃって21 at monthly against 脳トレ21's every 3 months. 脳トレ21's advantage is iOS requirement (11.0 vs 14.0). 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. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

脳トレ21 ships an update every 3 months, なんちゃって21 monthly. The most recent releases landed on November 11, 2026 and September 5, 2026 respectively.

Scorecard2 real differences · 4 level
脳トレ21 versus なんちゃって21: the parameters behind the verdict, then further details
Parameter脳トレ21なんちゃって21
PriceFreeFree
Update frequencyEvery 3 monthsMonthly — better
AdsYesYes
In-app purchasesNoNo
DevicesiPhone, iPad, iPod — betteriPhone, iPod
Requires iOS11.0 — better14.0
Further details — not scored
Size107 MB116 MB
Age rating4+17+
DeveloperZERONEFUKUROU

In-app purchases

None

脳トレ21

No in-app purchases

None

なんちゃって21

No in-app purchases

Questions

Is 脳トレ21 free?
脳トレ21 is free to download, with no in-app purchases.
Is なんちゃって21 free?
なんちゃって21 is free to download, with no in-app purchases.
Do 脳トレ21 or なんちゃって21 have ads?
Both 脳トレ21 and なんちゃって21 show ads.
Which is updated more often, 脳トレ21 or なんちゃって21?
脳トレ21 ships an update every 3 months, and なんちゃって21 monthly. Most recently, 脳トレ21 was updated on November 11, 2026 and なんちゃって21 on September 5, 2026.

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