Comparison

N'Back vs [大人の脳トレ] 瞬発力をあげろ！小学生から大人まで無料で暇つぶしが出来るゲーム

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

Head to head

N'Back

Free

📚 Education

★ 4.03 ratingsView app →

[大人の脳トレ] 瞬発力をあげろ！小学生から大人まで無料で暇つぶしが出来るゲーム

Free

📚 Education

No ratingsView app →

About

N'Back

Enhance sensory and working memory with this brain training application. It offers various modes to test your ability to recall sequences of numbers, progressing through different 'N' levels.

Highlights

Sensory memory improvement
Working memory enhancement
N'Back exercises
Flash Mode
Slow Mode
Step Mode

Features

Read full description

Improve Sensory Memory & Working Memory using N'Back. ◆Flash Mode / Slow Mode / Step Mode Tap the number key matches the one from N steps earlier in the sequence. In 1'Back 1 task1: count & memorize 2 task2: count & memorize 3 __keyboard__: answer for task1 4 task3: count & memorize 5 __keyboard__: answer for task2 6 task4: count & memorize : In 2'Back 1 task1: count & memorize 2 task2: count & memorize 3 task3: count & memorize 4 __keyboard__: answer for task1 5 task4: count & memorize 6 __keyboard__: answer for task2 7 task5: count & memorize :

About

[大人の脳トレ] 瞬発力をあげろ！小学生から大人まで無料で暇つぶしが出来るゲーム

Features

Read full description

アプリ概要：背景と同じ色のドットを見つけて制限時間以内にタップするだけのゲーム《こんな方におすすめ》・小学生1年生から大人まで・集中力を高めたい。・暇を潰したい制作者のベストスコア：43

Screenshots

N'Back4 screens

[大人の脳トレ] 瞬発力をあげろ！小学生から大人まで無料で暇つぶしが出来るゲーム4 screens

Verdict

The call

The clearest difference is in-app purchases: [大人の脳トレ] 瞬発力をあげろ！小学生から大人まで無料で暇つぶしが出来るゲーム at none against N'Back's 1. [大人の脳トレ] 瞬発力をあげろ！小学生から大人まで無料で暇つぶしが出来るゲーム also leads on ads (none vs shown) and device support (3 vs 1). N'Back's advantage is update cadence (every 9 months vs every 25 months). On price 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'Back sells 1 one-off in-app purchase. [大人の脳トレ] 瞬発力をあげろ！小学生から大人まで無料で暇つぶしが出来るゲーム asks for nothing beyond the download.

UpkeepUpdate frequency

N'Back ships an update every 9 months, [大人の脳トレ] 瞬発力をあげろ！小学生から大人まで無料で暇つぶしが出来るゲーム every 25 months. Both last shipped on November 1, 2026.

Scorecard5 real differences · 5 level

N'Back versus [大人の脳トレ] 瞬発力をあげろ！小学生から大人まで無料で暇つぶしが出来るゲーム: the parameters behind the verdict, then further details
Parameter	N'Back	[大人の脳トレ] 瞬発力をあげろ！小学生から大人まで無料で暇つぶしが出来るゲーム
Price	Free	Free
Rating	4.0 (3 ratings) — better	—
Positive reviews	72.7% of reviews	—
Number of ratings	3 — better	—
Update frequency	Every 9 months — better	Every 25 months
Ads	Yes	No — better
In-app purchases	Yes	No — better
Monetization	Free with in-app purchases	—
Devices	iPhone	iPhone, iPad, iPod — better
Requires iOS	16.0	6.0 — better
Further details — not scored
Size	6 MB	9 MB
Age rating	4+	4+
Developer	Yasuyoshi Ota	REP COM Inc.

In-app purchases

1 purchases

N'Back

One-time1

Add Levels (3'Back-10'Back) and Remove Ads$2.99

None

[大人の脳トレ] 瞬発力をあげろ！小学生から大人まで無料で暇つぶしが出来るゲーム

No in-app purchases

Questions

Is N'Back free?

N'Back is free to download, with in-app purchases available.

Is [大人の脳トレ] 瞬発力をあげろ！小学生から大人まで無料で暇つぶしが出来るゲーム free?

[大人の脳トレ] 瞬発力をあげろ！小学生から大人まで無料で暇つぶしが出来るゲーム is free to download, with no in-app purchases.

Do N'Back or [大人の脳トレ] 瞬発力をあげろ！小学生から大人まで無料で暇つぶしが出来るゲーム have ads?

N'Back shows ads; [大人の脳トレ] 瞬発力をあげろ！小学生から大人まで無料で暇つぶしが出来るゲーム does not.

Which is updated more often, N'Back or [大人の脳トレ] 瞬発力をあげろ！小学生から大人まで無料で暇つぶしが出来るゲーム?

N'Back ships an update every 9 months, and [大人の脳トレ] 瞬発力をあげろ！小学生から大人まで無料で暇つぶしが出来るゲーム every 25 months. Most recently, N'Back was updated on November 1, 2026 and [大人の脳トレ] 瞬発力をあげろ！小学生から大人まで無料で暇つぶしが出来るゲーム on November 1, 2026.