Comparison

NBack³ vs ShogiStep

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

ShogiStep

Features
Read full description

Learn openings. Play with confidence. Know how the pieces move, but feel lost in the opening? Remember a sequence in practice, then forget it in a game? ShogiStep: Learn Openings helps you study Japanese chess openings by moving pieces on a board with your cat coach. Developed by a Learning Engineering PhD and amateur shogi 2-dan, with commentary supervised by a shogi 5-dan. Understand the ideas, recall the moves, and build your opening knowledge through hands-on practice. UNDERSTAND WHY EACH MOVE MATTERS Openings are sequences refined through games and study. Memorizing moves alone can leave you unsure when an opponent chooses a different line. Learn what a move prepares, what threat it prevents, and how it helps your pieces work together. Your cat coach explains the ideas alongside the board, making positions easier to follow than notation alone. LEARN MODE: ONE MOVE AT A TIME Highlights show which piece to move and where to place it. Tap or drag to play while reading the commentary. Tap a square reference in the explanation to light up that square on the board. Enlarge the commentary for easier reading. TEST MODE: RECALL, PLAY, REVIEW Try the opening without move guides. A mistake does not end your attempt: after two mistakes, a hint helps you continue. Review the commentary after a correct move. At the end, check your first-try accuracy and mistakes, then practice again. FIND YOUR OPENING AMONG 53 LESSONS Start with Primitive Climbing Silver, Bishop Exchange Reclining Silver, and Double Wing Attack. Explore familiar systems and surprise attacks through five optional packs of 10 lessons each: • Static Rook: Side Pawn Capture, Yagura, Gangi, Twisting Rook, Right King, and more. • Ranging Rook: Opposing Rook, Third File Rook, Fourth File Rook, Fujii System, Quick Ishida, and more. • Central Rook: Sente and Gote Gokigen Central Rook, Horned Silver Central Rook, Superfast S-37, and more. • Opposing Strategies & Study: Double Ranging Rook, Right Fourth File Rook, Quick-Attack Climbing Silver, Maruyama Vaccine, and more. • Surprise & Fighting Openings: Pac-Man, Demon Slayer, New Demon Slayer, Iijima's Bishop Pullback, Tsukada Special, Ureshino, and more. FOLLOW THE PROS BEYOND THE OPENING Step through professional games or watch them autoplay. Choose Sente or Gote and move the pieces yourself to follow the game. Try the first game free; the Pro Games Pack adds 10 more. PRACTICE IN YOUR SPARE MOMENTS Learn and Test progress is saved separately so you can resume later. Switch sides to practice your opponent's moves, too. Commentary is provided for the recommended side only; it is not shown when practicing the opposite side. Available in Japanese, English, Traditional Chinese, and Simplified Chinese. Adjust background music and sound effects in Settings. START FREE. CHOOSE ONE-TIME PURCHASES. Three opening lessons and the first professional game are free. Optional purchases include: • Five opening packs, with 10 lessons each • Pro Games Pack: 10 additional games • Ad removal • Complete Set: all five packs, 10 additional pro games, and ad removal All purchases are one-time purchases, with no monthly fees or automatic renewals. Choose individual packs or unlock the Complete Set. Restore previous purchases in Settings. Understand a move. Recall it. Play it. Build confidence in your opening with your cat coach. SPECIAL THANKS Commentary supervision: 枡本 秀男 — Representative of エデュ将棋教室; Japan Shogi Association-certified shogi instructor; shogi 5-dan. Music provided by: Music-Note.jp URL: http://www.music-note.jp/

Screenshots

NBack³3 screens
ShogiStep4 screens

Verdict

The call

The clearest difference is update cadence: ShogiStep at daily against NBack³'s every 4 days. ShogiStep also leads on 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 ShogiStep sells 8 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

NBack³ ships an update every 4 days, ShogiStep daily. The most recent releases landed on October 30, 2026 and October 26, 2026 respectively.

Scorecard2 real differences · 6 level
NBack³ versus ShogiStep: the parameters behind the verdict, then further details
ParameterNBack³ShogiStep
PriceFreeFree
Positive reviews71.4% of reviews—
Update frequencyEvery 4 daysDaily — better
AdsYesYes
In-app purchasesYesYes
MonetizationFree with in-app purchases—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.015.0 — better
Further details — not scored
Size20 MB33 MB
Age rating4+4+
DeveloperTaiki NishimuraREBRON

In-app purchases

1 purchases

NBack³

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

ShogiStep

One-time8
  • Pro Games Pack$0.29
  • Remove Ads$0.49
  • Opposing Formations Pack$1.99
Show 5 more
  • Surprise Openings Pack$1.99
  • Static Rook Pack$1.99
  • Ranging Rook Pack$1.99
  • Central Rook Pack$1.99
  • Complete Set$7.99

Questions

Is NBack³ free?
NBack³ is free to download, with in-app purchases available.
Is ShogiStep free?
ShogiStep is free to download, with in-app purchases available.
Do NBack³ or ShogiStep have ads?
Both NBack³ and ShogiStep show ads.
Which is updated more often, NBack³ or ShogiStep?
NBack³ ships an update every 4 days, and ShogiStep daily. Most recently, NBack³ was updated on October 30, 2026 and ShogiStep on October 26, 2026.

Other comparisons