Comparison

N'Back vs MindSpan Memory Booster

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

Head to head
About

N'Back

Enhance sensory and working memory with this brain training application. It offers various modes to test your ability to recall sequences of numbers, progressing through different 'N' levels.

Highlights
  • Sensory memory improvement
  • Working memory enhancement
  • N'Back exercises
  • Flash Mode
  • Slow Mode
  • Step Mode
Features
Read full description

Improve Sensory Memory & Working Memory using N'Back. ◆Flash Mode / Slow Mode / Step Mode 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 :

About

MindSpan Memory Booster

Train your working memory with a simple yet challenging game. Observe moving shapes and recall their details like color and pattern to progress. Improve your cognitive skills essential for learning and focus.

Highlights
  • Observe and recall moving geometric shapes
  • Identify shape, color, and pattern
  • Increasing difficulty with speed and complexity
  • Trains working memory and cognitive skills
  • Focuses on fluid intelligence and learning ability
Features
Read full description

Watch. Remember. Answer. MindSpan trains the most important cognitive skill you have: working memory. A shape moves across the screen. You watch. Then you answer: what was it? What color? What pattern? Sounds simple. It isn't. HOW IT WORKS Each round, a geometric shape — triangle, star, polygon, moon — travels along a path. Your job: hold it in mind, then identify it from a set of options. As you improve, shapes move faster, paths grow more complex, and the distractors look more alike. CHALLENGE LEVELS Between the memory rounds, brain-teasers change the pace — mental math, logic and odd-one-out puzzles, lateral-thinking riddles, and number patterns. The question stays on screen; you reason it through. Memory and reasoning, woven together, so no two sessions feel the same. WHAT YOU'RE TRAINING Working memory is the brain's scratchpad — the ability to hold and manipulate information in real time. It underlies reading comprehension, mental arithmetic, decision-making, and sustained focus. Research consistently links working memory capacity to fluid intelligence and learning ability.

Screenshots

N'Back4 screens
MindSpan Memory Booster4 screens

Verdict

The call

The clearest difference is review sentiment: N'Back at 70% against MindSpan Memory Booster's 0%. MindSpan Memory Booster's advantage is in-app purchases (none vs 1) and ads (none vs shown). On price 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

Both are free to download. N'Back sells 1 one-off in-app purchase. MindSpan Memory Booster asks for nothing beyond the download.

UpkeepUpdate frequency

N'Back ships an update every 9 months, MindSpan Memory Booster fortnightly. The most recent releases landed on September 11, 2026 and August 15, 2026 respectively.

Scorecard6 real differences · 4 level
N'Back versus MindSpan Memory Booster: the parameters behind the verdict, then further details
ParameterN'BackMindSpan Memory Booster
PriceFreeFree
Rating4.0 (3 ratings) — better
Positive reviews70.0% of reviews — better0.0% of reviews
Number of ratings3 — better
Update frequencyEvery 9 monthsFortnightly — better
AdsYesNo — better
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS16.015.6 — better
Further details — not scored
Size6 MB5 MB
Age rating4+4+
DeveloperYasuyoshi OtaBothina Elzoobi

Customer experience

N'Back

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews10 reviews
Positive70.0%
Neutral0.0%
Negative30.0%

MindSpan Memory Booster

Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

In-app purchases

1 purchases

N'Back

One-time1
  • Add Levels (3'Back-10'Back) and Remove Ads$2.99
None

MindSpan Memory Booster

No in-app purchases

Questions

Is N'Back free?
N'Back is free to download, with in-app purchases available.
Is MindSpan Memory Booster free?
MindSpan Memory Booster is free to download, with no in-app purchases.
Do N'Back or MindSpan Memory Booster have ads?
N'Back shows ads; MindSpan Memory Booster does not.
Which is updated more often, N'Back or MindSpan Memory Booster?
N'Back ships an update every 9 months, and MindSpan Memory Booster fortnightly. Most recently, N'Back was updated on September 11, 2026 and MindSpan Memory Booster on August 15, 2026.

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