Comparison

N vs Ultra N Back

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

Head to head
About

N

Features
Read full description

Equations keep coming, and you answer the one you saw a few turns ago while calculating the next. Memorising and calculating at the same time, a dual task that keeps your head working. This is the N-back task, a working memory exercise. SLEEP & SCORE (APPLE HEALTH) - Reads sleep and steps from Apple Health. "Sleep & Score" in the Review tab shows last night's sleep, today's steps, and your accuracy by how long you slept - "What Health reveals" answers questions from your own records, such as how many hours of sleep make you sharpest and how far two short nights pull your score down (Premium) - Saves how your mind feels after each round to Apple Health as State of Mind - Health data stays on this device and is never sent anywhere. Not for medical use KNOW YOUR MENTAL CONDITION - After every round, slide along a color band to record how your mind feels, from foggy to clear - "When your mind feels clear" ranks when you most often feel clear, such as mornings, your first round of the day, or after a break - "Mood and score" plots each round so you can check whether clearer rounds score higher THREE INPUT MODES - Tap: answer quickly with number buttons - Writing: write the digit on screen with your finger - Listening: the equation is read aloud and never shown. Keep your eyes closed, listen, remember, and write BUILT FOR HABIT - One short session a day - Streak counting - Record how your head feels after each session WHAT YOU LEAVE BEHIND - A graph of how far up the levels you have climbed - The hours you tend to practise, and total time - A calendar showing which days you played WHERE YOU STAND - Connect Game Center to see your rank in the world - Today, this week, and all time - Ranks are free for everyone INSIGHTS - Once enough sessions pile up, the app names a pattern you would not notice yourself - Accuracy runs higher on mornings; a level you lost tends to return after a rest day - Differences between levels are factored out, so moving up alone is never called "doing well" - Available on devices with Apple Intelligence, processed entirely on device MAKE IT YOURS - Set the number of questions and the time limit - Choose a starting level, up to the highest you have reached - Three colour themes - iPhone and iPad 1 5 minutes a day is enough to start. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://note.com/toastar/n/n9e6b03d99470

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

Screenshots

N4 screens
Ultra N Back4 screens

Verdict

The call

The clearest difference is update cadence: Ultra N Back at every 4 days against N's every 8 days. Ultra N Back also leads on iOS requirement (16.0 vs 26.0). 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. N sells 1 in-app purchase, starting at $7.49 per month and Ultra N Back sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

N ships an update every 8 days, Ultra N Back every 4 days. The most recent releases landed on November 12, 2026 and October 30, 2026 respectively.

Scorecard2 real differences · 4 level
N versus Ultra N Back: the parameters behind the verdict, then further details
ParameterNUltra N Back
PriceFreeFree
Update frequencyEvery 8 daysEvery 4 days — better
AdsYesYes
In-app purchasesYesYes
DevicesiPhone, iPadiPhone, iPad
Requires iOS26.016.0 — better
Further details — not scored
Size28 MB57 MB
Age rating4+4+
Developerchunson yamadaAyumu Kawahara

In-app purchases

1 purchases

N

Subscriptions1
  • 1ヶ月プラン14 Days trial$7.491 Month
2 purchases

Ultra N Back

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

Questions

Is N free?
N is free to download, with in-app purchases available.
Is Ultra N Back free?
Ultra N Back is free to download, with in-app purchases available.
Do N or Ultra N Back have ads?
Both N and Ultra N Back show ads.
Which is updated more often, N or Ultra N Back?
N ships an update every 8 days, and Ultra N Back every 4 days. Most recently, N was updated on November 12, 2026 and Ultra N Back on October 30, 2026.

Other comparisons