# HTML5AppTester vs GC Tower

The clearest difference is update cadence: GC Tower at monthly against HTML5AppTester's every 16 months. HTML5AppTester's advantage is iOS requirement (9.0 vs 15.0). 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.

HTML5AppTester ships an update every 16 months, GC Tower monthly. The most recent releases landed on September 16, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | HTML5AppTester | GC Tower |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 16 months | **Monthly** |
| Size | 18 MB | 76 MB |
| Requires iOS | **9.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 17+ | 17+ |
| Developer | [Pablo Clemente](https://appshunter.io/developer/721792087) | [Shenzhen Minxing Technology Co., Ltd](https://appshunter.io/developer/1626432290) |

## What reviewers say

### HTML5AppTester

[App page](https://appshunter.io/ios/app/html5apptester/id1120947079)

**Features:** macOS Compatibility

**In-app purchases:** none


### GC Tower

[App page](https://appshunter.io/ios/app/gc-tower/id6739322579)

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

**In-app purchases:** none


## Frequently asked questions

### Is HTML5AppTester free?

HTML5AppTester is free to download, with no in-app purchases.

### Is GC Tower free?

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

### Do HTML5AppTester or GC Tower have ads?

Neither HTML5AppTester nor GC Tower shows ads.

### Which is updated more often, HTML5AppTester or GC Tower?

HTML5AppTester ships an update every 16 months, and GC Tower monthly. Most recently, HTML5AppTester was updated on September 16, 2026 and GC Tower on September 23, 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.*