Comparison

Ultra N Back vs NBackCalc

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

Head to head
About

Ultra N Back

Read full description

Ultra N Back (UNB) is an app designed specifically to train working memory through the N-Back task. Allow me to introduce the features of UNB, which perfectly combine ease of use, sustainability, and fun. UNB offers three distinctive features: ・Highly customizable training functions ・Visualization of growth records and continuity support ・Community features such as rankings 1. Customizable Training Functions In UNB, in addition to the conventional N-Back modes that train you to remember “letters” and “positions,” you can also choose modes that require remembering “colors” and “shapes.” This provides multifaceted and high-load stimulation to the brain, making training more effective. We also addressed traditional issues with the N-Back task, such as difficulty training in places where sound cannot be played, or the inability to adjust training speed to individual needs. With UNB, you can toggle letter display ON/OFF and freely adjust training speed to suit your personal preference. 2. Visualization of Growth Records and Continuity Support The N-Back task is effective when practiced consistently over time. What matters most in sustaining practice is being able to feel your own progress. That’s why UNB automatically records the number of problems you solve each day, as well as the exact date you achieved each new N level. These records are visualized in simple, intuitive graphs, allowing you to easily compare with your past self and feel a stronger sense of growth. To further support consistency, UNB also features a notification system. You can set your own daily goal for the number of problems to solve. If you haven’t met your goal by a set time, UNB will remind you with a notification. As a bonus, notifications include hidden tips about the N-Back task that appear at random—don’t miss them! 3. Community Features such as Rankings Finding peers who are working on the same challenge is an enjoyable part of learning. UNB makes this possible with a problem-solving ranking system and easy-to-use sharing features for social media. In particular, the ranking system doesn’t just show the number of problems solved—it also displays titles that reflect the highest N level each player has achieved. Discovering that there are players who have mastered higher N levels will surely boost your motivation for N-Back training. Ultra N Back can truly be called the definitive N-Back training app. We hope you enjoy the experience! Other Links Official Website: https://www.all-prep.com Privacy Policy: https://www.all-prep.com/privacy-policy Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula

About

NBackCalc

Features
Read full description

NBackCalcは、認知科学で実証されたNバック課題をベースにした計算トレーニングアプリです。 【NBackとは?】 N個前の計算問題の答えを記憶しながら、新しい計算問題を解く二重課題です。「覚える」と「計算する」を同時に行うことで、ワーキングメモリ(作業記憶)を効率よく鍛えられます。 【特徴】 ・1〜10バックまで対応。自分のレベルに合わせて調整可能 ・加算・減算・乗算・除算から使用する演算を自由に選択 ・制限時間・問題数をカスタマイズ ・広告なし・完全無料 【こんな人におすすめ】 ・マルチタスクが苦手な人 ・あたふたしてしまいがちな人 ・物忘れが多いと感じている人

Screenshots

Ultra N Back4 screens
NBackCalc3 screens

Verdict

The call

The clearest difference is ads: NBackCalc at none against Ultra N Back's shown. NBackCalc also leads on update cadence (every 2 days vs every 4 days). On price, in-app purchases, device support 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. Ultra N Back sells 2 in-app purchases, starting at $0.99 per month and NBackCalc sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

Ultra N Back ships an update every 4 days, NBackCalc every 2 days. The most recent releases landed on October 10, 2026 and October 28, 2026 respectively.

Scorecard2 real differences · 4 level
Ultra N Back versus NBackCalc: the parameters behind the verdict, then further details
ParameterUltra N BackNBackCalc
PriceFreeFree
Update frequencyEvery 4 daysEvery 2 days — better
AdsYesNo — better
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better17.0
Further details — not scored
Size57 MB1 MB
Age rating4+4+
DeveloperAyumu KawaharaYOSHINORI KONNO

In-app purchases

2 purchases

Ultra N Back

Subscriptions2
  • Pro Plan$0.991 Month
  • Unlimited Plan$1.991 Month
1 purchases

NBackCalc

One-time1
  • 開発者を応援する$0.99

Questions

Is Ultra N Back free?
Ultra N Back is free to download, with in-app purchases available.
Is NBackCalc free?
NBackCalc is free to download, with in-app purchases available.
Do Ultra N Back or NBackCalc have ads?
Ultra N Back shows ads; NBackCalc does not.
Which is updated more often, Ultra N Back or NBackCalc?
Ultra N Back ships an update every 4 days, and NBackCalc every 2 days. Most recently, Ultra N Back was updated on October 10, 2026 and NBackCalc on October 28, 2026.

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