# GST调试助手 vs Lmark

The clearest difference is update cadence: Lmark at every 3 days against GST调试助手's every 3 months. Lmark also leads on iOS requirement (10.0 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.

GST调试助手 ships an update every 3 months, Lmark every 3 days. The most recent releases landed on September 23, 2026 and September 13, 2026 respectively.

## The numbers

| Metric | GST调试助手 | Lmark |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 3 months | **Every 3 days** |
| Size | 63 MB | 15 MB |
| Requires iOS | 12.0 | **10.0** |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 4+ |
| Developer | [海湾安全技术有限公司](https://appshunter.io/developer/1389703268) | [Dongguan Zhiqing Information Technology Co., Ltd.](https://appshunter.io/developer/1495147249) |

## What reviewers say

### GST调试助手

[App page](https://appshunter.io/ios/app/gst/id1470014669)

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

**In-app purchases:** none


### Lmark

[App page](https://appshunter.io/ios/app/lmark/id1641228348)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is GST调试助手 free?

GST调试助手 is free to download, with no in-app purchases.

### Is Lmark free?

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

### Do GST调试助手 or Lmark have ads?

Neither GST调试助手 nor Lmark shows ads.

### Which is updated more often, GST调试助手 or Lmark?

GST调试助手 ships an update every 3 months, and Lmark every 3 days. Most recently, GST调试助手 was updated on September 23, 2026 and Lmark on September 13, 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.*