# Peak vs SmartFour

The clearest difference is rating: Peak at 4.7 against SmartFour's 4.0. Peak also leads on update cadence (fortnightly vs every 3 months) and ratings volume (146K vs 4). SmartFour's advantage is in-app purchases (none vs 10) and ads (none vs shown). On price, review sentiment 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. SmartFour asks for nothing beyond the download.

Peak holds the better App Store score, 4.7 against 4.0. That said, the two scores are not equally well evidenced: Peak has 146K ratings behind it against 4, 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 SmartFour's.

Peak ships an update fortnightly, SmartFour every 3 months. The most recent releases landed on October 17, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | Peak | SmartFour |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.7 (146K ratings)](https://appshunter.io/ios/app/peak-brain-training/id806223188/reviews)** | [4.0 (4 ratings)](https://appshunter.io/ios/app/smartfour/id1524139564/reviews) |
| Number of ratings | **146K** | 4 |
| Positive reviews | **63.2% of reviews** | 57.1% of reviews |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Fortnightly** | Every 3 months |
| Monetization | Free with in-app purchases | **Free** |
| Size | 311 MB | 151 MB |
| Requires iOS | 15.0 | **10.0** |
| Devices | **iPhone, iPad, iPod, Apple Watch** | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Synaptic Labs](https://appshunter.io/developer/1751726088) | [FS GIIKER TECHNOLOGY CO.,LTD](https://appshunter.io/developer/1228471304) |

## 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


### SmartFour

[App page](https://appshunter.io/ios/app/smartfour/id1524139564)

This AI-powered 3D board game requires connected hardware to play. Engage in head-to-head matches, challenge an adaptive AI, or compete with players globally. Track your progress with advanced statistics and replays.

**Highlights:** AI training, Online competition, Global leaderboard, Advanced stats, Replay functionality

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is Peak free?

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

### Is SmartFour free?

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

### Which has better reviews, Peak or SmartFour?

Peak is rated higher. Peak averages 4.7 out of 5 from 146K ratings, while SmartFour averages 4.0 from 4 ratings.

### Do Peak or SmartFour have ads?

Peak shows ads; SmartFour does not.

### Which is updated more often, Peak or SmartFour?

Peak ships an update fortnightly, and SmartFour every 3 months. Most recently, Peak was updated on October 17, 2026 and SmartFour on October 1, 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.*