Comparison

Memory Board vs Dual N

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

Head to head
About

Memory Board

Enhance your short-term memory and concentration with this game. Repeat color sequences on a grid, with increasing difficulty. Compete for a spot on the global leaderboard.

Highlights
  • Concentration training
  • Short-term memory challenges
  • Adjustable grid size
  • Increasing difficulty levels
  • Global leaderboard
  • Color sequence repetition
Features
Read full description

Memory Board is a game for concentration and short term memory. Select the grid size and repeat the sequence of randomly flashed colors. Continuously challenge your concentration and memory as difficulty increases with each level. Top 100 scores are invited to submit to an in-app global leaderboard. What's your highest level?

About

Dual N

This app is a brain game designed to improve working memory and cognitive skills through a challenging memory-training exercise. It offers customizable difficulty, goal setting, and global leaderboards to track progress. An ad-free experience is available via a subscription.

Highlights
  • Working memory training
  • Customizable difficulty (N-value, interval, session length)
  • Goal setting and reminders
  • Global leaderboards
  • Multilingual support
  • Ad-free Pro version
Features
Read full description

Dual NBack – Brain Training to Improve Memory Dual NBack is a fun and challenging brain game designed to strengthen your working memory. Set goals, get reminders, and climb the global leaderboards as you sharpen your mind! What Is Dual NBack? Dual NBack is a memory-training game that presents audio (letters) and visual (positions) sequences simultaneously. Research suggests that consistent play may enhance your working memory—the ability to hold and process information briefly—and also boost short-term recall. How to Play The game starts at Level N=2, where you need to remember the position (square) and the sound (letter) from two turns back. If the current position or sound matches what was shown two turns ago, tap the corresponding button. Strong performance automatically raises your level, but you can manually adjust the difficulty whenever you like. Key Features Customizable Settings Tailor your training: tweak the N-value (number of turns to recall), the interval between sounds/blocks, and session length as you see fit. Reminders & Goals Set daily or weekly targets and enable notifications to help you practice consistently. Global Leaderboards Compare your scores with players worldwide and see how you rank as you improve. Share Function Post your results on social media or messaging apps to challenge your friends and family. Multilingual Support Currently offered in English and Japanese, with more languages on the way. Why Train Your Working Memory? Working memory stores information for a few seconds to minutes, enabling you to make decisions, perform calculations, or tackle other cognitive tasks. Playing Dual NBack regularly can help strengthen this mental capacity, potentially improving focus, concentration, and overall brain agility. Ad-Free Experience with Dual NBack Pro Enjoy a 3-day free trial of Dual NBack Pro to train with no ads or interruptions. If you choose to purchase Dual NBack Pro, the payment is charged to your iTunes account. Renewal fees are charged within 24 hours before the current subscription period ends. You can cancel your subscription anytime: Go to Settings → tap your name → Subscriptions → locate and cancel the subscription you want to end. If you don’t cancel before the trial ends, the paid subscription automatically starts. Privacy Policy: https://goukakuappli.co.jp/privacy End User License Agreement (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Summary Strengthen Your Mind: Give your working memory a proven workout. Adapt the Difficulty: Start at N=2 or set your preferred challenge level. Stay Motivated: Leverage reminders, goals, and leaderboards to keep pushing your limits. Go Pro for No Ads: Take advantage of a 3-day free trial and upgrade to an ad-free training experience. Download Dual NBack now and take your cognitive performance to a new level!

Screenshots

Memory Board4 screens
Dual N4 screens

Verdict

The call

The clearest difference is review sentiment: Memory Board at 100% against Dual N's 51%. Memory Board also leads on in-app purchases (none vs 2) and ads (none vs shown). Dual N's advantage is price (Free vs $2.99) and ratings volume (376 vs 5). On device support 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

Dual N is free to download; Memory Board costs $2.99 up front. Dual N sells 2 in-app purchases, starting at $0.99 per month. Memory Board asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Memory Board holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: Dual N has 376 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 100% of Memory Board's written reviews are positive against 51% of Dual N's.

UpkeepUpdate frequency

Memory Board ships an update every 2 months, Dual N fortnightly. The most recent releases landed on October 6, 2026 and October 27, 2026 respectively.

Scorecard9 real differences · 1 level
Memory Board versus Dual N: the parameters behind the verdict, then further details
ParameterMemory BoardDual N
Price$2.99Free — better
Rating5.0 (5 ratings) — better4.6 (376 ratings)
Positive reviews100.0% of reviews — better50.9% of reviews
Number of ratings5376 — better
Update frequencyEvery 2 monthsFortnightly — better
AdsNo — betterYes
In-app purchasesNo — betterYes
MonetizationPaidFree with in-app purchases — better
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.4 — better15.0
Further details — not scored
Size18 MB199 MB
Age rating4+4+
Developer5Path LLCGOKAKU SUPPLI, LIMITED LIABILITY CO.

Customer experience

Memory Board

All ratings5 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

Dual N

All ratings362 ratings
Positive88.1%
Neutral5.8%
Negative6.1%
Written reviews110 reviews
Positive50.9%
Neutral20.0%
Negative29.1%

In-app purchases

None

Memory Board

No in-app purchases

2 purchases

Dual N

Subscriptions1
  • NBack Monthly Subscription3 Days trial$0.991 Month
One-time1
  • Lifetime Pass$12.99

Questions

Is Memory Board free?
Memory Board costs $2.99, with no in-app purchases.
Is Dual N free?
Dual N is free to download, with in-app purchases available.
Which has better reviews, Memory Board or Dual N?
Memory Board is rated higher. Memory Board averages 5.0 out of 5 from 5 ratings, while Dual N averages 4.6 from 376 ratings.
Do Memory Board or Dual N have ads?
Dual N shows ads; Memory Board does not.
Which is updated more often, Memory Board or Dual N?
Memory Board ships an update every 2 months, and Dual N fortnightly. Most recently, Memory Board was updated on October 6, 2026 and Dual N on October 27, 2026.

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