# Zen Sort vs Stack Balance

The clearest difference is in-app purchases: Stack Balance at none against Zen Sort's 1. Stack Balance also leads on iOS requirement (15.0 vs 17.0). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. Zen Sort sells 1 one-off in-app purchase. Stack Balance asks for nothing beyond the download.

Zen Sort ships an update every 4 weeks, Stack Balance monthly. The most recent releases landed on October 25, 2026 and October 15, 2026 respectively.

## The numbers

| Metric | Zen Sort | Stack Balance |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Monthly |
| Size | 8 MB | 1 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Yusuf Borucu](https://appshunter.io/developer/1729463230) | [晓 郭](https://appshunter.io/developer/1895645928) |

## What reviewers say

### Zen Sort

[App page](https://appshunter.io/ios/app/zen-sort-color-puzzle-game/id6760969347)

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Pro | $3.99 | one-time |


### Stack Balance

[App page](https://appshunter.io/ios/app/stack-balance-tower-drop/id6771305276)

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

**In-app purchases:** none


## Frequently asked questions

### Is Zen Sort free?

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

### Is Stack Balance free?

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

### Do Zen Sort or Stack Balance have ads?

Neither Zen Sort nor Stack Balance shows ads.

### Which is updated more often, Zen Sort or Stack Balance?

Zen Sort ships an update every 4 weeks, and Stack Balance monthly. Most recently, Zen Sort was updated on October 25, 2026 and Stack Balance on October 15, 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.*