Dual N vs N
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Dual N
This scientifically proven brain training app enhances working memory, concentration, and cognitive abilities. It helps improve IQ, memory, and thinking speed through engaging gameplay that challenges your brain. Consistent practice leads to noticeable improvements in focus and mental agility.
- Strengthens working memory
- Improves concentration
- Enhances cognitive abilities
- Difficulty adjustment (N-2 to N-5)
- Progress visualization with graphs
- Statistics and calendar tracking
- Global player rankings
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■ What is Dual N-Back Dual N-Back is a scientifically proven brain training app that strengthens your working memory, concentration, and cognitive abilities. With consistent training, it helps improve your IQ, memory, and thinking speed. --- ■ Basic Rules The rules of Dual N-Back are simple, yet your brain works harder the more you play. * Remember the sequence of positions and letters displayed on the screen. * When the current position or letter matches the one shown N steps earlier, press the corresponding button. * Each correct answer sharpens your memory and focus — like a workout for your brain. * The challenge continues until all lives are lost, testing your concentration and endurance. --- ■ Main Features * Difficulty Adjustment: Choose from N-2 to N-5 and train at your own level. * Progress Visualization: Track your training volume with graphs and see your improvement through the average correct answers per game. * Statistics and Calendar: View summarized stats such as play count, accuracy rate, and average score. Review your progress on a calendar to stay motivated. * Global Ranking: Compete with players around the world and challenge the limits of your brain. --- ■ The More You Play, the Stronger Your Brain Becomes Just a few minutes a day — on your commute or during a break — can make a real difference. Every session helps your brain grow stronger, step by step. Take one step today to evolve your mind.
N
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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
Screenshots
Verdict
The clearest difference is ads: Dual N at none against N's shown. Dual N also leads on iOS requirement (17.0 vs 26.0). On price, update cadence, 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
Both are free to download. Dual N sells 2 in-app purchases, starting at $1.99 per month and N sells 1 in-app purchase, starting at $7.49 per month. Whichever you choose, the download price is not the number that matters.
Dual N ships an update every 10 days, N every 8 days. The most recent releases landed on November 11, 2026 and November 12, 2026 respectively.
| Parameter | Dual N | N |
|---|---|---|
| Price | Free | Free |
| Rating | 4.3 (19 ratings) — better | — |
| Positive reviews | 48.0% of reviews | — |
| Number of ratings | 19 — better | — |
| Update frequency | Every 10 days | Every 8 days — better |
| Ads | No — better | Yes |
| In-app purchases | Yes | Yes |
| Monetization | Free with in-app purchases | — |
| Devices | iPhone | iPhone, iPad — better |
| Requires iOS | 17.0 — better | 26.0 |
| Further details — not scored | ||
| Size | 41 MB | 28 MB |
| Age rating | 4+ | 4+ |
| Developer | Hiromi Fujita | chunson yamada |
In-app purchases
Dual N
- Monthly Premium Features$1.991 Month
- Annual Premium Features$19.991 Year
N
- 1ヶ月プラン14 Days trial$7.491 Month








