# CS.Lights vs DAC Tester

The clearest difference is in-app purchases: CS.Lights at none against DAC Tester's 1. CS.Lights also leads on ads (none vs shown) and iOS requirement (12.0 vs 15.0). DAC Tester's advantage is update cadence (every 2 days vs fortnightly). On price and device support there is nothing between them.

Both are free to download. DAC Tester sells 1 one-off in-app purchase. CS.Lights asks for nothing beyond the download.

CS.Lights ships an update fortnightly, DAC Tester every 2 days. The most recent releases landed on October 9, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | CS.Lights | DAC Tester |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Fortnightly | **Every 2 days** |
| Size | 285 MB | 4 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Zhejiang Changshuo Lighting Co., Ltd.](https://appshunter.io/developer/1706275778) | [明 张](https://appshunter.io/developer/1696039450) |

## What reviewers say

### CS.Lights

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

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

**In-app purchases:** none


### DAC Tester

[App page](https://appshunter.io/ios/app/dac-tester/id6744589341)

**Features:** macOS Compatibility

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Remove Ads | $0.99 | one-time |


## Frequently asked questions

### Is CS.Lights free?

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

### Is DAC Tester free?

DAC Tester is free to download, with in-app purchases available.

### Do CS.Lights or DAC Tester have ads?

DAC Tester shows ads; CS.Lights does not.

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

CS.Lights ships an update fortnightly, and DAC Tester every 2 days. Most recently, CS.Lights was updated on October 9, 2026 and DAC Tester on October 1, 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.*