# czi Sky vs ARK EDGE

The clearest difference is update cadence: czi Sky at every 3 weeks against ARK EDGE's every 4 months. ARK EDGE's advantage is device support (3 vs 1) and iOS requirement (13.0 vs 16.0). On price, ads and in-app purchases there is nothing between them.

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

czi Sky ships an update every 3 weeks, ARK EDGE every 4 months. The most recent releases landed on October 28, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | czi Sky | ARK EDGE |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 4 months |
| Size | 32 MB | 23 MB |
| Requires iOS | 16.0 | **13.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Guangzhou Chengzhi Intelligent Machine Technology Co., Ltd.](https://appshunter.io/developer/1675437495) | [一鸣 汤](https://appshunter.io/developer/1896595046) |

## What reviewers say

### czi Sky

[App page](https://appshunter.io/ios/app/czi-sky/id6746466110)

**Features:** macOS Compatibility

**In-app purchases:** none


### ARK EDGE

[App page](https://appshunter.io/ios/app/ark-edge/id6768932089)

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

**In-app purchases:** none


## Frequently asked questions

### Is czi Sky free?

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

### Is ARK EDGE free?

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

### Do czi Sky or ARK EDGE have ads?

Neither czi Sky nor ARK EDGE shows ads.

### Which is updated more often, czi Sky or ARK EDGE?

czi Sky ships an update every 3 weeks, and ARK EDGE every 4 months. Most recently, czi Sky was updated on October 28, 2026 and ARK EDGE on October 31, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*