Comparison

N'Back vs Retro N

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

Retro N

Engage in retro-style brain training that makes the N-back task enjoyable. Improve memory, focus, and emotional control through a superhero-themed game. Suitable for all ages, it offers a free, ad-supported experience with optional in-app purchases.

Highlights
  • Retro 8-bit N-back gameplay
  • Improves memory and focus
  • Superhero Ranger theme
  • Up to 3 players on one device
  • No login or personal data collection
  • Minimal ads, child-safe
Features
Read full description

Retro-style 8-bit brain training that makes N-back fun. Improve memory, focus, and emotional control while playing. “Level 10 is insane!” A surprisingly deep N-back challenge that kids and adults can enjoy for free. 【What Makes This App Different】 ・The only N-back app themed with Retro Game × Superhero Rangers ・All 15 stages completely free (optional tip only) ・Up to 3 players on one device (great for kids, siblings, parents) ・No login, no email, no personal data collected ・Minimal ads, safe for children ・Simple controls anyone can learn instantly 【Player Reviews】 ・“Hard even for adults until you get used to it. The retro RPG-style intro feels exciting.” ・“Surprisingly challenging, but you can feel it working. Finding the rhythm is fun.” ・“I almost gave up at Level 6, but finally cleared it after sticking with it.” 【Does Any of This Sound Familiar?】 ・You forget things more easily ・You struggle to stay focused ・You get irritated without meaning to ・Your thinking feels slower ・You want your smartphone time to be more meaningful This app turns the scientifically studied N-back task into a retro game you can naturally keep playing. 【Recommended For】 ・Anyone who wants to improve emotional control ・People seeking better focus and memory ・Fans of nostalgic retro games ・Those who struggled with other training methods ・Anyone wanting stress relief ・Parents looking for an educational game for kids 【What Is the N-Back Task?】 Introduced by Kirchner in 1958, the N-back method strengthens working memory by recalling information from “N steps earlier” while making quick decisions. Abilities expected to improve include: ・Memory ・Focus and sustained attention ・Judgment ・Emotional regulation Working memory is the mental “workbench” essential for learning, productivity, and daily life. 【Training Design of Memory Rangers】 ・Level 1 starts with remembering one step back (beginner-friendly) ・Difficulty gradually increases across 15 stages ・Level 10 is famously tough for those seeking a challenge ・Retro RPG-style presentation keeps the journey engaging Simple to play, yet you will feel real cognitive challenge as you progress. 【Fun for Families】 One device supports up to 3 profiles, allowing: ・Siblings to compete ・Parents and children to challenge each other ・Friends to enjoy the training together 【Message from the Developer】 N-back is effective but mentally demanding, and many people struggle to keep it going. Still, I believed there were people who wanted to improve emotional balance, focus, and daily well-being. I wanted to create an experience where “you were enjoying a game… and before you knew it, your brain had improved.” That is why I combined the excitement of superhero teams with the warmth of retro games, creating a training method anyone—kids or adults—can continue without stress. If this app brings even a little more calm, focus, or happiness to your daily life, nothing would make me happier. Start your retro brain-training journey today.

Screenshots

N'Back4 screens
Retro N4 screens

Verdict

The call

The clearest difference is rating: Retro N at 5.0 against N'Back's 4.0. Retro N also leads on review sentiment (100% vs 70%) and device support (3 vs 1). N'Back's advantage is ratings volume (3 vs 1). On price, update cadence, ads and in-app purchases 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 and Retro N sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Retro N holds the better App Store score, 5.0 against 4.0. Both are backed by a comparable volume of ratings — 3 and 1 respectively. Written reviews point the same way: 70% of N'Back's written reviews are positive against 100% of Retro N's.

UpkeepUpdate frequency

N'Back ships an update every 9 months, Retro N every 8 months. The most recent releases landed on September 11, 2026 and September 10, 2026 respectively.

Scorecard5 real differences · 5 level
N'Back versus Retro N: the parameters behind the verdict, then further details
ParameterN'BackRetro N
PriceFreeFree
Rating4.0 (3 ratings)5.0 (1 ratings) — better
Positive reviews70.0% of reviews100.0% of reviews — better
Number of ratings3 — better1
Update frequencyEvery 9 monthsEvery 8 months — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhoneiPhone, iPad, iPod — better
Requires iOS16.013.0 — better
Further details — not scored
Size6 MB74 MB
Age rating4+4+
DeveloperYasuyoshi OtaTELULU LLC

Customer experience

N'Back

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

Retro N

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

N'Back

One-time1
  • Add Levels (3'Back-10'Back) and Remove Ads$2.99
4 purchases

Retro N

One-time4
  • Support for this app (100)$0.49
  • Remove Ads$2.99
  • Support for this app (500)$2.99
Show 1 more
  • Support for this app (1000)$5.99

Questions

Is N'Back free?
N'Back is free to download, with in-app purchases available.
Is Retro N free?
Retro N is free to download, with in-app purchases available.
Which has better reviews, N'Back or Retro N?
Retro N is rated higher. N'Back averages 4.0 out of 5 from 3 ratings, while Retro N averages 5.0 from 1 ratings.
Do N'Back or Retro N have ads?
Both N'Back and Retro N show ads.
Which is updated more often, N'Back or Retro N?
N'Back ships an update every 9 months, and Retro N every 8 months. Most recently, N'Back was updated on September 11, 2026 and Retro N on September 10, 2026.

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