# N'Back Fan > N'Back Fan (iPhone/iPad app by Yasuyoshi Ota.) - Source: https://appshunter.io/ios/app/nback-fan/id6449070102 (this page in markdown: same URL + `.md`) - Developer: [Yasuyoshi Ota](https://appshunter.io/developer/1500357652) - Category: Education, Games, Puzzle, Trivia - Price: Free with in-app purchases - Age rating: 4+ - Requires: iOS 14.0 · 7 MB - Languages: American English, Japanese - Released: 2023-05-22 - Data updated: 2025-12-15 - User reviews in markdown: https://appshunter.io/ios/app/nback-fan/id6449070102/reviews.md ## What is N'Back Fan? 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/ ## Pricing and in-app purchases Base price: Free. **One-time purchases** | Purchase | Price | Type | | --- | --- | --- | | remove ads and extend to 12 | $1.99 | one-time | ## Version history (last 5 releases) ### 1.0.4 — 2025-12-15 performance improvements ### 1.0.3 — 2025-10-28 performance improvement ### 1.0.2 — 2025-01-05 performance improvement ### 1.0.1 — 2024-02-20 performance improvement ### 1.0 — 2023-05-22 No release notes. ## Apps similar to N'Back Fan | App | Rating | Price | Category | | --- | --- | --- | --- | | [N-Back Training](https://appshunter.io/ios/app/n/id1627478554) | — | Free | Education | | [AI先生　応用技術者試験](https://appshunter.io/ios/app/ai/id6738335800) | — | Free | Education | | [IQ Games](https://appshunter.io/ios/app/iq-games/id6754546973) | — | Free | Education | | [NBack³: Memory Training Game](https://appshunter.io/ios/app/nback/id6745750227) | — | Free | Education | | [N Back Extreme \| Dual N-Back](https://appshunter.io/ios/app/n-back-extreme-dual-n/id6744034751) | 4.2 (5) | Free | Education | | [AI先生　社会福祉士試験](https://appshunter.io/ios/app/ai/id6738535803) | — | Free | Education | ## More apps by Yasuyoshi Ota - [Kinetic Visual Acuity](https://appshunter.io/ios/app/kinetic-visual-acuity/id315045189) - [Kinetic Visual Acuity Lite](https://appshunter.io/ios/app/kinetic-visual-acuity-lite/id319026009) - [Amida Mikan](https://appshunter.io/ios/app/amida-mikan/id350563115) - [Try Hairstyle Lite](https://appshunter.io/ios/app/try-hairstyle-lite/id350729683) - [Amida Mikann](https://appshunter.io/ios/app/amida-mikann/id358691639) - [2 Digit Multiplication](https://appshunter.io/ios/app/2-digit-multiplication/id395133470) All apps by Yasuyoshi Ota: https://appshunter.io/developer/1500357652 --- *Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2025-12-15.*