# N vs Quick Maffs

The clearest difference is in-app purchases: Quick Maffs at none against N's 7. Quick Maffs also leads on update cadence (weekly vs monthly) and review sentiment (100% vs 83%). N's advantage is ratings volume (237 vs 5). On price, rating, ads and device support there is nothing between them.

Both are free to download. N sells 7 in-app purchases, starting at $8.99 per month. Quick Maffs asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 4.7 for N against 4.8 for Quick Maffs. That said, the two scores are not equally well evidenced: N has 237 ratings behind it against 5, so its average is the more settled of the two. Written reviews are what separate them: 83% of N's written reviews are positive against 100% of Quick Maffs's.

N ships an update monthly, Quick Maffs weekly. The most recent releases landed on September 17, 2026 and June 4, 2026 respectively.

## The numbers

| Metric | N | Quick Maffs |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.7 (237 ratings)](https://appshunter.io/ios/app/n-back-challenge/id1524599079/reviews) | **[4.8 (5 ratings)](https://appshunter.io/ios/app/quick-maffs/id6740391231/reviews)** |
| Number of ratings | **237** | 5 |
| Positive reviews | 82.8% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Weekly** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 72 MB | 14 MB |
| Requires iOS | **16.4** | 17.6 |
| Devices | iPhone | **iPhone, iPad** |
| Age rating | 17+ | 4+ |
| Developer | [Rivuspurus](https://appshunter.io/developer/1171945549) | [Keith Martin](https://appshunter.io/developer/1789711589) |

## What reviewers say

### N

[App page](https://appshunter.io/ios/app/n-back-challenge/id1524599079)

This app offers a scientifically validated cognitive training program designed to enhance intelligence. It uses the dual n-back method to improve learning, reasoning, and problem-solving skills. Track progress, compete with friends, and customize your experience to boost cognitive abilities.

**Highlights:** Dual n-back cognitive training, IQ enhancement, Progress tracking and streaks, Social competition and leaderboards, Customizable voices and settings, Weekly habit option

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium (monthly) | $8.99 | per month |
| Premium (annual) | $54.99 | per year |
| 1 cup of coffee | $1.99 | one-time |
| 4 cups of coffee | $5.99 | one-time |
| Pizza | $7.99 | one-time |
| 7  cups of coffee | $8.99 | one-time |
| 10  cups of coffee | $10.99 | one-time |

**What reviewers like**

- 🧠 Effective working memory improvement
- 🎮 Excellent gamification and motivation system
- 💰 Free to use with affordable payment options
- 🎨 Clean, polished, intuitive user interface
- 📚 Scientifically-backed with educational articles

**What reviewers complain about**

- 🐛 Frequent mid-session freezes and crashes
- 🔊 Unclear letter pronunciation (some letters sound similar)
- 💳 Controversial 'coffee' paywall for missed days
- 🔌 Requires internet connection (not offline compatible)
- ⚠️ Inconsistent instant feedback on answers

**Reported bugs**

- Mid-session freezing and soft locks (most common)
- Sound not generating for letters during gameplay
- Buttons greyed out preventing interaction
- App crashes when accessing stats
- Double coffee charge on streak breaks

**Requested features**

- Single n-back and quad n-back modes
- Lock screen widgets for streak reminders
- Color-position dual n-back mode
- More granular settings (interference, probability, trial count)
- Penalty system for incorrect answers


### Quick Maffs

[App page](https://appshunter.io/ios/app/quick-maffs/id6740391231)

This mental math application offers 13 customizable game modes to sharpen arithmetic skills. It's ideal for students, professionals preparing for interviews, or anyone looking to boost their mathematical abilities. The app is completely free with no advertisements or in-app purchases.

**Highlights:** 13 customizable game modes, Various arithmetic types, Tailored difficulty levels, No ads or paywalls, Improve math skills

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is N free?

N is free to download, with in-app purchases available.

### Is Quick Maffs free?

Quick Maffs is free to download, with no in-app purchases.

### Which has better reviews, N or Quick Maffs?

Quick Maffs is rated higher. N averages 4.7 out of 5 from 237 ratings, while Quick Maffs averages 4.8 from 5 ratings.

### Do N or Quick Maffs have ads?

Neither N nor Quick Maffs shows ads.

### Which is updated more often, N or Quick Maffs?

N ships an update monthly, and Quick Maffs weekly. Most recently, N was updated on September 17, 2026 and Quick Maffs on June 4, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*