# RendrLab vs HTML Opener

The clearest difference is in-app purchases: RendrLab at none against HTML Opener's 1. RendrLab also leads on ads (none vs shown) and update cadence (daily vs every 4 days). On price, device support and iOS requirement there is nothing between them.

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

RendrLab ships an update daily, HTML Opener every 4 days. The most recent releases landed on October 31, 2026 and November 8, 2026 respectively.

## The numbers

| Metric | RendrLab | HTML Opener |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/html-opener-web-code-runner/id6808631721/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | **Daily** | Every 4 days |
| Monetization | — | Free with in-app purchases |
| Size | 8 MB | 12 MB |
| Requires iOS | 17.0 | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [MATTHEW KIYOSHI HANAMOTO](https://appshunter.io/developer/6776405950) | [GASHIMA LAB](https://appshunter.io/developer/1857125368) |

## What reviewers say

### RendrLab

[App page](https://appshunter.io/ios/app/rendrlab/id6778216813)

**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 open entire project folders, test responsive designs, and view web content as it would appear on a live website.

**Highlights:** Renders local HTML, CSS, JavaScript, and images, Opens entire project folders with relative paths, Desktop and mobile view toggle, Fullscreen mode for immersive viewing, Quick switcher for recent projects, Auto-launch primary tool on startup

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

**In-app purchases (1)**

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


## Frequently asked questions

### Is RendrLab free?

RendrLab 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 RendrLab or HTML Opener have ads?

HTML Opener shows ads; RendrLab does not.

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

RendrLab ships an update daily, and HTML Opener every 4 days. Most recently, RendrLab was updated on October 31, 2026 and HTML Opener on November 8, 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.*