# ZooStaff vs CSOMO

The clearest difference is update cadence: ZooStaff at fortnightly against CSOMO's every 4 months. ZooStaff also leads on iOS requirement (9.0 vs 13.4). On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

ZooStaff ships an update fortnightly, CSOMO every 4 months. The most recent releases landed on October 5, 2026 and September 24, 2026 respectively.

## The numbers

| Metric | ZooStaff | CSOMO |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Fortnightly** | Every 4 months |
| Size | 47 MB | 16 MB |
| Requires iOS | **9.0** | 13.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Geo Grin, OOO](https://appshunter.io/developer/1444482354) | [NORBIT, OOO](https://appshunter.io/developer/1748069052) |

## What reviewers say

### ZooStaff

[App page](https://appshunter.io/ios/app/zoostaff/id1592154581)

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

**In-app purchases:** none


### CSOMO

[App page](https://appshunter.io/ios/app/csomo/id6754237995)

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

**In-app purchases:** none


## Frequently asked questions

### Is ZooStaff free?

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

### Is CSOMO free?

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

### Do ZooStaff or CSOMO have ads?

Neither ZooStaff nor CSOMO shows ads.

### Which is updated more often, ZooStaff or CSOMO?

ZooStaff ships an update fortnightly, and CSOMO every 4 months. Most recently, ZooStaff was updated on October 5, 2026 and CSOMO on September 24, 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.*