# Peak vs 脳トレ！大人の漢字ナンクロ

The clearest difference is in-app purchases: 脳トレ！大人の漢字ナンクロ at none against Peak's 10. Peak's advantage is ratings volume (146K vs 21) and update cadence (fortnightly vs every 2 months). On price, review sentiment, ads and device support there is nothing between them.

Both are free to download. Peak sells 10 in-app purchases, starting at $2.99 per month. 脳トレ！大人の漢字ナンクロ asks for nothing beyond the download.

Peak holds the better App Store score, 4.7 against 4.4. That said, the two scores are not equally well evidenced: Peak has 146K ratings behind it against 21, so its average is the more settled of the two. Written reviews point the same way: 63% of Peak's written reviews are positive against 57% of 脳トレ！大人の漢字ナンクロ's.

Peak ships an update fortnightly, 脳トレ！大人の漢字ナンクロ every 2 months. The most recent releases landed on October 20, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | Peak | 脳トレ！大人の漢字ナンクロ |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (146K ratings)](https://appshunter.io/ios/app/peak-brain-training/id806223188/reviews)** | [4.4 (21 ratings)](https://appshunter.io/ios/app/id1527701421/reviews) |
| Number of ratings | **146K** | 21 |
| Positive reviews | **63.3% of reviews** | 56.9% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | Yes |
| Update frequency | **Fortnightly** | Every 2 months |
| Monetization | Free with in-app purchases | — |
| Size | 311 MB | 36 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Synaptic Labs](https://appshunter.io/developer/1751726088) | [nullhouse Inc.](https://appshunter.io/developer/853672308) |

## What reviewers say

### Peak

[App page](https://appshunter.io/ios/app/peak-brain-training/id806223188)

Enhance your cognitive abilities with over 45 engaging games designed to improve memory, attention, problem-solving, and more. Track your progress with detailed insights and compete with friends. A free basic version is available, with an optional Pro upgrade for a full brain training experience.

**Highlights:** 45+ brain training games, Daily Workouts, Coffee Break mode, Performance insights and statistics, Advanced Training modules, Compete with friends

**Features:** Family Sharing, Apple Watch app, Vision Pro support

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 40% Off Peak Pro Monthly | $2.99 | per month |
| Peak Pro | $3.99 | per month |
| Peak Pro Plan | $3.99 | per month |
| Peak Pro Plan | $4.99 | per month |
| Peak Pro | $11.99 | per year |
| 40% Off Peak Pro Yearly | $19.99 | per year |
| Peak Pro Plan | $34.99 | per year |
| Peak pro | $34.99 | per year |
| Advanced Training Peak & Brainways Working Memory Part 1 | Free | one-time |
| Advanced Training Peak & UCL Emotion Management | Free | one-time |

**What reviewers like**

- 💪 Challenging and engaging games
- 🧠 Effective brain training
- 📊 Detailed progress tracking
- 🔍 Variety of game categories
- 🤩 Enjoyable and fun to play

**What reviewers complain about**

- 🔍 Limited free games
- 💰 Expensive subscription
- 🔁 Repetitive game content
- 🐛 Bugs and glitches
- 🤖 Inconsistent dictionary

**Reported bugs**

- Freezing and crashing issues
- Inconsistent game performance
- Incorrect scoring and ranking
- Syncing and login problems

**Requested features**

- More free games and content
- Ability to replay games without ads
- Improved game instructions and feedback
- More coordination and emotion-based games
- Customizable brain training experience


### 脳トレ！大人の漢字ナンクロ

[App page](https://appshunter.io/ios/app/id1527701421)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🧠 Brain training and cognitive activation
- 💡 Learning new vocabulary and Kanji
- 👍 Enjoyable and fun gameplay
- ✨ Satisfying when puzzles are solved
- ✅ Hints available when stuck

**What reviewers complain about**

- 📺 Too many ads
- ⏳ Long ad durations
- 🧩 Puzzles becoming too easy
- 🤔 Answer order revealed too easily
- 😵 Difficulty inconsistency (too easy/hard)

**Reported bugs**

- App freezes during SAGA ads
- App freezes at 'XX questions solved' screen
- Unresponsive 'Next' button after completing a puzzle
- Unskippable ads or ads blocking gameplay
- Inability to tap lower left characters after ad removal

**Requested features**

- Add more levels/content
- Improve difficulty balancing
- Retain completed puzzle view
- Add scoring based on time and hints
- Allow bookmarking of challenging/favorite problems


## Frequently asked questions

### Is Peak free?

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

### Is 脳トレ！大人の漢字ナンクロ free?

脳トレ！大人の漢字ナンクロ is free to download, with no in-app purchases.

### Which has better reviews, Peak or 脳トレ！大人の漢字ナンクロ?

Peak is rated higher. Peak averages 4.7 out of 5 from 146K ratings, while 脳トレ！大人の漢字ナンクロ averages 4.4 from 21 ratings.

### Do Peak or 脳トレ！大人の漢字ナンクロ have ads?

Both Peak and 脳トレ！大人の漢字ナンクロ show ads.

### Which is updated more often, Peak or 脳トレ！大人の漢字ナンクロ?

Peak ships an update fortnightly, and 脳トレ！大人の漢字ナンクロ every 2 months. Most recently, Peak was updated on October 20, 2026 and 脳トレ！大人の漢字ナンクロ on October 16, 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.*