# Brain Boost vs Zen Stack Masters

The clearest difference is update cadence: Zen Stack Masters at every 4 days against Brain Boost's every 2 weeks. Brain Boost's advantage is iOS requirement (15.1 vs 18.6). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Brain Boost sells 3 in-app purchases, starting at $3.99 per 7 days and Zen Stack Masters sells 4 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

Brain Boost ships an update every 2 weeks, Zen Stack Masters every 4 days. The most recent releases landed on October 7, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | Brain Boost | Zen Stack Masters |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.6 (12 ratings)](https://appshunter.io/ios/app/brain-boost-logic-puzzles/id6753672737/reviews)** | — |
| Number of ratings | **12** | — |
| Positive reviews | 100.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 4 days** |
| Monetization | Free with in-app purchases | — |
| Size | 98 MB | 27 MB |
| Requires iOS | **15.1** | 18.6 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [VERTEX STUDIOS LTD](https://appshunter.io/developer/1805080787) | [Gal Itach](https://appshunter.io/developer/1867158254) |

## What reviewers say

### Brain Boost

[App page](https://appshunter.io/ios/app/brain-boost-logic-puzzles/id6753672737)

Challenge your mind with a scientifically inspired IQ test and a variety of engaging brain-training games. Track your progress, identify cognitive strengths, and compete globally to measure and improve your intelligence.

**Highlights:** Scientifically inspired IQ assessment, Variety of brain-training mini-games, Logic, memory, and aptitude challenges, Detailed analytics dashboard, Global leaderboard for competition, Regular updates with new puzzles

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium Access | $3.99 | per 7 days |
| Yearly Premium Access | $19.99 | per year |
| Lifetime Access | $39.99 | one-time |


### Zen Stack Masters

[App page](https://appshunter.io/ios/app/zen-stack-masters/id6758891728)

**Features:** macOS Compatibility

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Second Chance Tokens | $0.99 | one-time |
| Infinite Zen Mode | $5.99 | one-time |
| 1000 Tokens Deal | $99.99 | one-time |
| Zen Master | $1000.00 | one-time |


## Frequently asked questions

### Is Brain Boost free?

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

### Is Zen Stack Masters free?

Zen Stack Masters is free to download, with in-app purchases available.

### Do Brain Boost or Zen Stack Masters have ads?

Neither Brain Boost nor Zen Stack Masters shows ads.

### Which is updated more often, Brain Boost or Zen Stack Masters?

Brain Boost ships an update every 2 weeks, and Zen Stack Masters every 4 days. Most recently, Brain Boost was updated on October 7, 2026 and Zen Stack Masters on October 5, 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.*