Comparison

NBack 3D vs NBack Buddy

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • N-Back memory challenge
  • 3D shape and color recognition
  • Increasing difficulty levels
  • Sequence memorization
  • Cognitive skill enhancement
Features
Read full description

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 :

About

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.

Highlights
  • 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
Features
Read full description

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

NBack 3D3 screens
NBack Buddy4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

Scorecard4 real differences · 6 level
NBack 3D versus NBack Buddy: the parameters behind the verdict, then further details
ParameterNBack 3DNBack Buddy
PriceFree — better$1.99
Rating5.0 (1 ratings)5.0 (2 ratings)
Positive reviews100.0% of reviews—
Number of ratings12 — better
Update frequencyEvery 10 months—
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchases — betterPaid
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.614.1 — better
Further details — not scored
Size5 MB35 MB
Age rating4+4+
DeveloperYasuyoshi OtaByrt

Customer experience

NBack 3D

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

NBack Buddy

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

NBack 3D

One-time1
  • Extend to 20'Back & Remove Ads$2.99
None

NBack Buddy

No in-app purchases

Questions

Is NBack 3D free?
NBack 3D is free to download, with in-app purchases available.
Is NBack Buddy free?
NBack Buddy costs $1.99, with no in-app purchases.
Which has better reviews, NBack 3D or NBack Buddy?
NBack 3D and NBack Buddy are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.
Do NBack 3D or NBack Buddy have ads?
NBack 3D shows ads; NBack Buddy does not.

Other comparisons