N'Back Fan vs ARC
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
N'Back Fan
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Improve Sensory Memory & Working Memory using N'Back. 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 : [details] https://app.brain-workout.org/nbackfan-e/
ARC
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This app contains the visual puzzles of the ARC-AGI benchmark. Each puzzle follows a simple, hidden rule. Your task is to discover the rule and solve the puzzle. These are not tests of knowledge or memory. They are tests of fluid intelligence: the ability to reason and solve new problems. The ARC-AGI benchmark was created to provide a fair comparison between human and artificial intelligence. By using puzzles that do not rely on prior knowledge, it measures a machine's ability to learn and adapt. To date, no AI has been able to solve all of these puzzles. The app lets you engage with the very same problems researchers use, giving you a hands-on sense of what remains difficult for machines.
Screenshots
Verdict
The clearest difference is in-app purchases: ARC at none against N'Back Fan's 1. ARC also leads on ads (none vs shown) and update cadence (every 10 days vs every 9 months). N'Back Fan's advantage is iOS requirement (15.6 vs 26.0). On price 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
Both are free to download. N'Back Fan sells 1 one-off in-app purchase. ARC asks for nothing beyond the download.
N'Back Fan ships an update every 9 months, ARC every 10 days. Both last shipped on September 10, 2026.
| Parameter | N'Back Fan | ARC |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 9 months | Every 10 days — better |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.6 — better | 26.0 |
| Further details — not scored | ||
| Size | 7 MB | 0 MB |
| Age rating | 4+ | 4+ |
| Developer | Yasuyoshi Ota | Blackbelt Labs |
In-app purchases
N'Back Fan
- remove ads and extend to 12$1.99
ARC
No in-app purchases









