# GantComplete vs HTML Opener

The clearest difference is in-app purchases: GantComplete at none against HTML Opener's 1. GantComplete also leads on ads (none vs shown) and iOS requirement (15.0 vs 17.0). On price, update cadence and device support there is nothing between them.

Both are free to download. HTML Opener sells 1 one-off in-app purchase. GantComplete asks for nothing beyond the download.

GantComplete ships an update every 3 days, HTML Opener every 4 days. The most recent releases landed on October 28, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | GantComplete | HTML Opener |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/html-opener-web-code-runner/id6808631721/reviews)** |
| Number of ratings | — | **1** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 3 days** | Every 4 days |
| Monetization | — | Free with in-app purchases |
| Size | 12 MB | 12 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [BEAK,K.K.](https://appshunter.io/developer/1808079760) | [GASHIMA LAB](https://appshunter.io/developer/1857125368) |

## What reviewers say

### GantComplete

[App page](https://appshunter.io/ios/app/gantcomplete/id6760732020)

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

**In-app purchases:** none


### HTML Opener

[App page](https://appshunter.io/ios/app/html-opener-web-code-runner/id6808631721)

This app renders local HTML, CSS, and JavaScript files in a real browser on your iPhone and iPad. It allows you to test web prototypes and view interactive pages without needing a computer or local server. Easily open entire project folders and toggle between desktop and mobile views.

**Highlights:** Renders local HTML, CSS, JavaScript, Opens entire project folders, Desktop and mobile view toggle, Fullscreen mode for web apps, Quick switcher for recent projects, Auto-launch primary tool

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| HTML Opener PRO | $4.99 | one-time |


## Frequently asked questions

### Is GantComplete free?

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

### Is HTML Opener free?

HTML Opener is free to download, with in-app purchases available.

### Do GantComplete or HTML Opener have ads?

HTML Opener shows ads; GantComplete does not.

### Which is updated more often, GantComplete or HTML Opener?

GantComplete ships an update every 3 days, and HTML Opener every 4 days. Most recently, GantComplete was updated on October 28, 2026 and HTML Opener on October 29, 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.*