n vs N'Back
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
n
Enhance your working memory with this brain training application. It challenges you to recall past information by selecting difficulty levels and memorizing digits from addition problems.
- Working memory training
- Adjustable difficulty levels (1-10)
- Memorization of addition problem digits
- Tap last digit of previous answers
- N-back exercise implementation
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Good brain trainer app for improving your working memory. ＜ USAGE ＞ 1. Select level (1-10). 2. Memorize the answer of easy addition for the level times. 3. Continue memorizing and tap the last digit of the answer of n times before (NOT current answer). If you don't know what is N-Back, please see below. http://en.wikipedia.org/wiki/N-back
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.
- Sensory memory improvement
- Working memory enhancement
- N'Back exercises
- Flash Mode
- Slow Mode
- Step Mode
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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 :
Screenshots
Verdict
The clearest difference is rating: N'Back at 4.0 against n's 3.0. N'Back also leads on review sentiment (70% vs 39%). n's advantage is in-app purchases (none vs 1) and ratings volume (44 vs 3). On price, update cadence and ads 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
Both are free to download. N'Back sells 1 one-off in-app purchase. n asks for nothing beyond the download.
N'Back holds the better App Store score, 4.0 against 3.0. That said, the two scores are not equally well evidenced: n has 44 ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 39% of n's written reviews are positive against 70% of N'Back's.
n ships an update every 12 months, N'Back every 9 months. The most recent releases landed on September 13, 2026 and September 11, 2026 respectively.
| Parameter | n | N'Back |
|---|---|---|
| Price | Free | Free |
| Rating | 3.0 (44 ratings) | 4.0 (3 ratings) — better |
| Positive reviews | 38.9% of reviews | 70.0% of reviews — better |
| Number of ratings | 44 — better | 3 |
| Update frequency | Every 12 months | Every 9 months — better |
| Ads | Yes | Yes |
| In-app purchases | No — better | Yes |
| Monetization | Ad-supported — better | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone |
| Requires iOS | 13.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 5 MB | 6 MB |
| Age rating | 4+ | 4+ |
| Developer | dicwizard.jp | Yasuyoshi Ota |
Customer experience
n
N'Back
In-app purchases
n
No in-app purchases
N'Back
- Add Levels (3'Back-10'Back) and Remove Ads$2.99
