Comparison

NBack³ vs RecallBloom

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

Head to head
About

NBack³

This brain training app uses the scientifically proven Dual N-Back method to enhance cognitive functions like working memory, focus, and decision-making. It offers adjustable difficulty levels and tracks progress with a visually engaging interface.

Highlights
  • Dual N-Back method
  • Adjustable difficulty (n=1-5)
  • Enhances working memory
  • Improves inhibitory control
  • Develops attention skills
  • Progress tracking
  • Streak bonus system
Features
Read full description

■ NBack³: The Scientifically Proven Brain Training Game ■ "My memory isn't what it used to be..." "I can't seem to stay focused..." "I want to sharpen my split-second decision-making..." If these sound familiar, NBack³ is the ultimate brain training app designed just for you. ◆ The Ultimate Workout for Your Working Memory ◆ Based on "Dual N-Back" research—a method scientifically proven to enhance cognitive function—NBack³ takes brain training to the next level. Working memory is your brain's ability to temporarily hold and process information. It is the vital foundation for memory, focus, and logical reasoning. ◆ Simple to Play ◆ Memorize the Position, Color, and Character shown on a 3×3 grid. Identify if the current tile matches the one shown "n-steps" ago. Fully adjustable difficulty levels from n=1 to n=5. ◆ 5 Cognitive Functions You’ll Sharpen ◆ Working Memory: Enhance your "mental scratchpad." Inhibitory Control: Filter out distractions and irrelevant info. Selective & Divided Attention: Focus on multiple streams of data simultaneously. Visuospatial Cognition: Recognize spatial relationships with precision. Multitasking Decisiveness: Handle multiple tasks with ease. ◆ Key Features of NBack³ ◆ Stunning Neon UI: A beautiful, modern design for an immersive experience. Dynamic Difficulty: Adjustable n-levels (1–5) to match your progress. Streak Bonus System: Stay sharp and rack up consecutive correct answers. Intuitive Controls: Smooth and responsive gameplay. Quick Sessions: 20-turn sets allow for efficient training in minutes. Progress Tracking: Keep motivated by tracking your scores. Smart Reminders: Daily notifications to keep your streak alive. Personal Bests: Record your highest scores for each N-level. ◆ Perfect For... ◆ Students aiming to boost memory and learning. Professionals looking to improve workplace productivity. Health-conscious individuals interested in brain longevity. Seniors working to prevent cognitive decline. Gamers who love a mental challenge. ◆ The Science ◆ N-back training has been widely reported in research to improve fluid intelligence and cognitive performance. By processing position, color, and character simultaneously, NBack³ delivers a "Triple N-Back" challenge that provides a higher cognitive load for more effective results. ◆ Consistency is Key ◆ Brain training works best when it's a habit. NBack³ is designed to be completed in just a few minutes, making it perfect for your commute or a quick break. Sharpen your mind with the scientifically-backed power of NBack³! Terms of Use: https://planet-firewall-419.notion.site/25d6c3f9d1f680b29d72e5cef4be6fbf Privacy Policy: https://www.notion.so/NBack-1f06c3f9d1f6807aa983c83530910b0d Subscription Details: Premium Plan: 120 JPY / month (tax incl.) Auto-Renewal: Can be canceled up to 24 hours before the period ends. Management: App Store Settings > Subscriptions

About

RecallBloom

Features
Read full description

Train your memory with a brain game you can start in about a minute. Remember positions and spoken letters, compare them with earlier rounds, and see your practice in clear numbers. RecallBloom makes Dual N-Back training easy to start: tap when the position or sound matches, and wait when it does not. REMEMBER WHAT YOU SEE AND HEAR A tile lights up and an English letter plays. Decide whether each matches the one from a set number of rounds ago. As new information arrives, keep the recent positions and sounds in mind. START WITH A SHORT SET A standard set has 20 scored rounds, three seconds each, plus the opening rounds you need to remember. Begin with about a minute of practice, pause when you need a break, and resume later. SEE WHAT CHANGED Compare your mistakes with your previous or first set at the same level and task. Review position and sound mistakes separately, and follow your results on a graph. KNOW YOUR NEXT GOAL Your challenge path shows your current level and what comes next. Look back at the day you started, the levels you cleared, and your latest results. LEARN BY TRYING Three short practice questions introduce the rules. Try the matching buttons and learn the timing before starting a full set. PRACTICE AT YOUR PACE Use automatic difficulty adjustment or choose a level manually. Adjust the sound volume and switch between light and dark themes. No account registration is required. Training records are stored on your device. Practice is free with ads. An optional one-time purchase removes ads. There is no subscription.

Screenshots

NBack³3 screens
RecallBloom4 screens

Verdict

The call

The clearest difference is update cadence: NBack³ at every 4 days against RecallBloom's every 2 months. RecallBloom's advantage is iOS requirement (15.0 vs 17.0). On price, ads, in-app purchases and 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

Both are free to download. NBack³ sells 1 in-app purchase, starting at $0.49 per month and RecallBloom sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

NBack³ ships an update every 4 days, RecallBloom every 2 months. The most recent releases landed on October 30, 2026 and November 6, 2026 respectively.

Scorecard2 real differences · 6 level
NBack³ versus RecallBloom: the parameters behind the verdict, then further details
ParameterNBack³RecallBloom
PriceFreeFree
Positive reviews71.4% of reviews—
Update frequencyEvery 4 days — betterEvery 2 months
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.0 — better
Further details — not scored
Size20 MB40 MB
Age rating4+4+
DeveloperTaiki NishimuraHIROYUKI YOKOKURA

In-app purchases

1 purchases

NBack³

Subscriptions1
  • プレミアムプラン$0.491 Month
1 purchases

RecallBloom

One-time1
  • Remove ads$4.99

Questions

Is NBack³ free?
NBack³ is free to download, with in-app purchases available.
Is RecallBloom free?
RecallBloom is free to download, with in-app purchases available.
Do NBack³ or RecallBloom have ads?
Both NBack³ and RecallBloom show ads.
Which is updated more often, NBack³ or RecallBloom?
NBack³ ships an update every 4 days, and RecallBloom every 2 months. Most recently, NBack³ was updated on October 30, 2026 and RecallBloom on November 6, 2026.

Other comparisons