# zenku vs Stack Rush

The clearest difference is ads: zenku at none against Stack Rush's shown. Stack Rush's advantage is update cadence (weekly vs every 3 months). On price, in-app purchases, device support and iOS requirement there is nothing between them.

Both are free to download. zenku sells 3 one-off in-app purchases and Stack Rush sells 7 in-app purchases, starting at $2.99 per 7 days. Whichever you choose, the download price is not the number that matters.

zenku ships an update every 3 months, Stack Rush weekly. The most recent releases landed on September 27, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | zenku | Stack Rush |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Weekly** |
| Size | 106 MB | 44 MB |
| Requires iOS | **15.0** | 15.1 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [XSGames](https://appshunter.io/developer/1725979641) | [David Nilsson](https://appshunter.io/developer/1862499876) |

## What reviewers say

### zenku

[App page](https://appshunter.io/ios/app/zenku/id6742699851)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock All levels | $0.99 | one-time |
| Unlock All levels + Coffee | $2.99 | one-time |
| Unlock All levels + Love | $6.99 | one-time |


### Stack Rush

[App page](https://appshunter.io/ios/app/stack-rush-color-sort-puzzle/id6758590549)

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

**In-app purchases (7)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly Premium | $2.99 | per 7 days |
| 80 Gems | $0.99 | one-time |
| Starter Pack | $1.99 | one-time |
| 300 Gems | $2.99 | one-time |
| Remove Ads | $4.99 | one-time |
| 800 Gems | $6.99 | one-time |
| Lifetime Premium | $19.99 | one-time |


## Frequently asked questions

### Is zenku free?

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

### Is Stack Rush free?

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

### Do zenku or Stack Rush have ads?

Stack Rush shows ads; zenku does not.

### Which is updated more often, zenku or Stack Rush?

zenku ships an update every 3 months, and Stack Rush weekly. Most recently, zenku was updated on September 27, 2026 and Stack Rush on September 21, 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.*