# Sky2F vs CS.Lights

The clearest difference is update cadence: CS.Lights at fortnightly against Sky2F's every 29 months. Sky2F's advantage is iOS requirement (9.0 vs 12.0). 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.

Sky2F ships an update every 29 months, CS.Lights fortnightly. The most recent releases landed on October 11, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Sky2F | CS.Lights |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 29 months | **Fortnightly** |
| Size | 14 MB | 285 MB |
| Requires iOS | **9.0** | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Sky Frameworks](https://appshunter.io/developer/1223773513) | [Zhejiang Changshuo Lighting Co., Ltd.](https://appshunter.io/developer/1706275778) |

## What reviewers say

### Sky2F

[App page](https://appshunter.io/ios/app/sky2f/id1223773514)

**Features:** macOS Compatibility

**In-app purchases:** none


### CS.Lights

[App page](https://appshunter.io/ios/app/cslights/id6465895578)

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

**In-app purchases:** none


## Frequently asked questions

### Is Sky2F free?

Sky2F is free to download, with no in-app purchases.

### Is CS.Lights free?

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

### Do Sky2F or CS.Lights have ads?

Neither Sky2F nor CS.Lights shows ads.

### Which is updated more often, Sky2F or CS.Lights?

Sky2F ships an update every 29 months, and CS.Lights fortnightly. Most recently, Sky2F was updated on October 11, 2026 and CS.Lights on October 9, 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.*