# iStar Lighting vs ctt light

The clearest difference is iOS requirement: ctt light at 12.3 against iStar Lighting's 15.6. On price, update cadence, 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.

iStar Lighting ships an update every 3 months, ctt light every 2 months. The most recent releases landed on September 23, 2026 and September 10, 2026 respectively.

## The numbers

| Metric | iStar Lighting | ctt light |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 2 months** |
| Size | 470 MB | 334 MB |
| Requires iOS | 15.6 | **12.3** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Dongguan Ryker Lighting Co., Ltd](https://appshunter.io/developer/1752449650) | [CIAN-TIAN Technology Ltd.](https://appshunter.io/developer/1551880952) |

## What reviewers say

### iStar Lighting

[App page](https://appshunter.io/ios/app/istar-lighting/id6633414472)

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

**In-app purchases:** none


### ctt light

[App page](https://appshunter.io/ios/app/ctt-light/id6745014818)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is iStar Lighting free?

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

### Is ctt light free?

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

### Do iStar Lighting or ctt light have ads?

Neither iStar Lighting nor ctt light shows ads.

### Which is updated more often, iStar Lighting or ctt light?

iStar Lighting ships an update every 3 months, and ctt light every 2 months. Most recently, iStar Lighting was updated on September 23, 2026 and ctt light on September 10, 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.*