# ZEN vs Kakuso Challenge

The clearest difference is price: Kakuso Challenge at Free against ZEN's $0.99. ZEN's advantage is in-app purchases (none vs 3) and ads (none vs shown). On update cadence, device support and iOS requirement there is nothing between them.

Kakuso Challenge is free to download; ZEN costs $0.99 up front. Kakuso Challenge sells 3 one-off in-app purchases. ZEN asks for nothing beyond the download.

ZEN ships an update every 11 months, Kakuso Challenge every 6 months. The most recent releases landed on August 15, 2026 and June 5, 2026 respectively.

## The numbers

| Metric | ZEN | Kakuso Challenge |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[2.0 (2 ratings)](https://appshunter.io/ios/app/zen/id330187669/reviews)** | — |
| Number of ratings | **2** | — |
| Positive reviews | 71.4% of reviews | — |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 11 months | **Every 6 months** |
| Monetization | Paid | — |
| Size | 3 MB | 17 MB |
| Requires iOS | **12.0** | 13.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Aleksejs Voloviks](https://appshunter.io/developer/316367204) | [Alven Kam](https://appshunter.io/developer/1227687322) |

## What reviewers say

### ZEN

[App page](https://appshunter.io/ios/app/zen/id330187669)

Guide a ball through a challenging labyrinth by using a limited sequence of waves. Avoid sparkling blocks and find the shortest path to the gates. This innovative puzzler tests your precision, reaction, and inventiveness.

**Highlights:** Precision-based gameplay, Reaction challenges, Inventive puzzle mechanics, Limited wave sequences, Labyrinth navigation, Obstacle avoidance

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

**In-app purchases:** none


### Kakuso Challenge

[App page](https://appshunter.io/ios/app/kakuso-challenge/id1485845940)

**Features:** macOS Compatibility

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Kakuso Challenge 20 Hints | $0.99 | one-time |
| Kakuso Challenge 50 Hints | $1.99 | one-time |
| Kakuso Challenge 100 Hints | $2.99 | one-time |


## Frequently asked questions

### Is ZEN free?

ZEN costs $0.99, with no in-app purchases.

### Is Kakuso Challenge free?

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

### Do ZEN or Kakuso Challenge have ads?

Kakuso Challenge shows ads; ZEN does not.

### Which is updated more often, ZEN or Kakuso Challenge?

ZEN ships an update every 11 months, and Kakuso Challenge every 6 months. Most recently, ZEN was updated on August 15, 2026 and Kakuso Challenge on June 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.*