Number Memory 25 vs N'Back Fan
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Number Memory 25
This brain training app helps improve memory by challenging users to memorize and recall sequences of numbers. Regular, short practice sessions can enhance visual memory and cognitive skills.
- Memorize and recall number sequences
- Visual memory training
- Daily 30-second practice
- Progressive difficulty
- Simple, challenging gameplay
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Can't remember your phone number? Can't remember your postal code? If you've had these experiences, you may be experiencing a decline in memory! This is a simple but challenging brain training app for those who want to improve their memory. By repeating it once a day for 30 seconds for a week, you can train your memory. The rules are simple. First, quickly memorize the numbers displayed. Then, recall and input the numbers in order. The numbers are not displayed for a long time. Let's use visual memory to quickly memorize the numbers! So, how many numbers can you remember?
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/
Screenshots
Verdict
The clearest difference is price: N'Back Fan at Free against Number Memory 25's $0.99. Number Memory 25's advantage is ads (none vs shown) and update cadence (every 3 weeks vs every 9 months). On in-app purchases, device support and iOS requirement 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
N'Back Fan is free to download; Number Memory 25 costs $0.99 up front. Number Memory 25 sells 1 one-off in-app purchase and N'Back Fan sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.
Number Memory 25 ships an update every 3 weeks, N'Back Fan every 9 months. The most recent releases landed on September 2, 2026 and September 10, 2026 respectively.
| Parameter | Number Memory 25 | N'Back Fan |
|---|---|---|
| Price | $0.99 | Free — better |
| Rating | 5.0 (5 ratings) — better | — |
| Number of ratings | 5 — better | — |
| Update frequency | Every 3 weeks — better | Every 9 months |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Paid | — |
| Devices | iPhone, iPad, iPod, Mac — better | iPhone, iPad, iPod |
| Requires iOS | 15.0 — better | 15.6 |
| Further details — not scored | ||
| Size | 3 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | T&T United Inc. | Yasuyoshi Ota |
In-app purchases
Number Memory 25
- Unlock AllFree
N'Back Fan
- remove ads and extend to 12$1.99
