# OpenHTML vs ShelfCheck Pro

OpenHTML and ShelfCheck Pro are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Both are free to download. OpenHTML sells 1 one-off in-app purchase and ShelfCheck Pro sells 3 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

## The numbers

| Metric | OpenHTML | ShelfCheck Pro |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (4 ratings)](https://appshunter.io/ios/app/openhtml-html-pdf-and-markdown/id6776524508/reviews)** | — |
| Number of ratings | **4** | — |
| Positive reviews | 71.4% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | Every 5 days | — |
| Monetization | Free with in-app purchases | — |
| Size | 20 MB | 2 MB |
| Requires iOS | 18.0 | **17** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [吉帅 仇](https://appshunter.io/developer/1087837335) | [贺 周](https://appshunter.io/developer/1815397078) |

## What reviewers say

### OpenHTML

[App page](https://appshunter.io/ios/app/openhtml-html-pdf-and-markdown/id6776524508)

View HTML, Markdown, ZIP web projects, and source files privately on your device. Inspect and export rendered pages offline, diagnose rendering issues, and view code files securely. Designed for developers, students, and anyone needing to inspect web content safely.

**Highlights:** View HTML, Markdown, and source files, Import ZIP archives and web projects, Offline rendering with network access blocked by default, Diagnose rendering and resource issues, Export pages to PDF or long images, Private by default, no accounts or analytics

**Features:** macOS Compatibility, Safari Extension, Family Sharing, Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OpenHTML Pro | $2.99 | one-time |


### ShelfCheck Pro

[App page](https://appshunter.io/ios/app/shelfcheck-pro/id6780683158)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $1.99 | per month |
| Pro Yearly | $9.99 | per year |
| Pro Lifetime | $19.99 | one-time |


## Frequently asked questions

### Is OpenHTML free?

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

### Is ShelfCheck Pro free?

ShelfCheck Pro is free to download, with in-app purchases available.

### Do OpenHTML or ShelfCheck Pro have ads?

Neither OpenHTML nor ShelfCheck Pro shows ads.

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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.*