NBack 3D vs NBack Buddy
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
NBack 3D
This app challenges your memory by requiring you to count 3D shapes of specific colors. As the 'N' value increases, the difficulty escalates, testing your ability to recall past stimuli in a sequence.
- N-Back memory challenge
- 3D shape and color recognition
- Increasing difficulty levels
- Sequence memorization
- Cognitive skill enhancement
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The task is only to count the 3D shapes of the specified shape and color, but as the N of the N ‘Back increases, it becomes more difficult. *N’Back : The current answer matches the one from N steps earlier in the sequence. *1’Back 1 task1: count & memorize 2 task2: count & memorize 3 answer for task1 4 task3: count & memorize 5 answer for task2 6 task4: count & memorize : *2’Back 1 task1: count & memorize 2 task2: count & memorize 3 task3: count & memorize 4 answer for task1 5 task4: count & memorize 6 answer for task2 7 task5: count & memorize :
NBack Buddy
This app offers scientifically validated training for working memory using the N-Back task. It features multiple stimulus types, adjustable difficulty, and detailed performance tracking in a distraction-free interface.
- N-Back working memory training
- Multiple stimulus modalities
- Adjustable difficulty levels (1-9 back)
- Distraction-free interface
- Performance tracking and statistics
- Data export for research
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N-Back Buddy: Scientific Working Memory Training N-Back Buddy is a professional implementation of the N-Back task, one of the most well-researched cognitive training paradigms for working memory enhancement. Originally developed by Wayne Kirchner in 1958 and popularized by Susanne Jaeggi's research, the N-Back task has become a cornerstone tool in cognitive psychology and neuroscience research. What is the N-Back Task? The N-Back task challenges your working memory by requiring you to remember and match stimuli from N steps back in a sequence. As the "N" increases (1-back, 2-back, 3-back, etc.), the cognitive demand increases proportionally, making it an excellent adaptive training tool for working memory capacity. Key Features: Multiple stimulus modalities (visual, auditory, dual N-Back) Adjustable difficulty levels (1-back through 9-back) Clean, distraction-free interface optimized for testing Comprehensive performance tracking and statistics Configurable session duration and stimulus timing Export data for research analysis No ads, no subscriptions - designed for serious use Who Uses N-Back Buddy? Cognitive psychology researchers conducting working memory studies Neuroscience labs investigating executive function Clinical researchers studying cognitive training interventions Students and professionals seeking evidence-based brain training Anyone interested in scientifically-validated cognitive enhancement Research-Grade Implementation: N-Back Buddy follows established protocols from the cognitive psychology literature, ensuring that the task parameters match those used in published research. This makes it suitable for both personal cognitive training and as a research tool in academic settings. Privacy First: All data stays on your device. Optional data export allows you to analyze your performance using your preferred tools. Whether you're a researcher needing a reliable N-Back implementation, a student learning about working memory, or someone committed to evidence-based cognitive training, N-Back Buddy provides the tools you need in a professional, no-nonsense package.
Screenshots
Verdict
The clearest difference is price: NBack 3D at Free against NBack Buddy's $1.99. NBack Buddy's advantage is in-app purchases (none vs 1) and ads (none vs shown). On rating, ratings volume, 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
NBack 3D is free to download; NBack Buddy costs $1.99 up front. NBack 3D sells 1 one-off in-app purchase. NBack Buddy asks for nothing beyond the download.
On the App Store both sit at effectively the same score — 5.0 for NBack 3D against 5.0 for NBack Buddy. Both are backed by a comparable volume of ratings — 1 and 2 respectively.
| Parameter | NBack 3D | NBack Buddy |
|---|---|---|
| Price | Free — better | $1.99 |
| Rating | 5.0 (1 ratings) | 5.0 (2 ratings) |
| Positive reviews | 100.0% of reviews | — |
| Number of ratings | 1 | 2 — better |
| Update frequency | Every 10 months | — |
| Ads | Yes | No — better |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases — better | Paid |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.6 | 14.1 — better |
| Further details — not scored | ||
| Size | 5 MB | 35 MB |
| Age rating | 4+ | 4+ |
| Developer | Yasuyoshi Ota | Byrt |
Customer experience
NBack 3D
NBack Buddy
In-app purchases
NBack 3D
- Extend to 20'Back & Remove Ads$2.99
NBack Buddy
No in-app purchases









