# HTML Viewer Pro vs XML Viewer Converter JSON PDF

HTML Viewer Pro and XML Viewer Converter JSON PDF both sit at 3.9 stars, but that hides the real split: 47% of HTML Viewer Pro's written reviews are positive against 4% of XML Viewer Converter JSON PDF's. HTML Viewer Pro also leads on monetization model (free with in-app purchases vs subscription) and iOS requirement (12.0 vs 14.0.0). XML Viewer Converter JSON PDF's advantage is ads (none vs shown) and update cadence (fortnightly vs every 15 months). On price, rating, ratings volume and in-app purchases there is nothing between them.

Both are free to download. HTML Viewer Pro sells 2 in-app purchases, starting at $1.99 per month and XML Viewer Converter JSON PDF sells 4 in-app purchases, starting at $11.99 per month. Whichever you choose, the download price is not the number that matters.

XML Viewer Converter JSON PDF holds the better App Store score, 4.1 against 3.9. Both are backed by a comparable volume of ratings — 45 and 121 respectively. Written reviews complicate that: 47% of HTML Viewer Pro's written reviews are positive against 4% of XML Viewer Converter JSON PDF's, so the app with the better star average is not the one people write more warmly about.

HTML Viewer Pro ships an update every 15 months, XML Viewer Converter JSON PDF fortnightly. The most recent releases landed on September 5, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | HTML Viewer Pro | XML Viewer Converter JSON PDF |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.9 (45 ratings)](https://appshunter.io/ios/app/html-viewer-pro/id1521187909/reviews) | **[4.1 (121 ratings)](https://appshunter.io/ios/app/xml-viewer-converter-json-pdf/id1641792040/reviews)** |
| Number of ratings | 45 | **121** |
| Positive reviews | **47.4% of reviews** | 3.8% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 15 months | **Fortnightly** |
| Monetization | **Free with in-app purchases** | Subscription |
| Size | 33 MB | 51 MB |
| Requires iOS | **12.0** | 14.0.0 |
| Devices | iPhone, iPad, iPod | **iPhone, iPad, iPod, Mac** |
| Age rating | 17+ | 4+ |
| Developer | [Hayato Shimizu](https://appshunter.io/developer/1207195348) | [NEURASYNC](https://appshunter.io/developer/1639101560) |

## What reviewers say

### HTML Viewer Pro

[App page](https://appshunter.io/ios/app/html-viewer-pro/id1521187909)

View HTML source code from URLs or directly from Safari. This app offers multi-tab browsing, bookmarking, and search functionality. Customize the display with various themes, fonts, and user agents.

**Highlights:** View source code from URLs, View source code from Safari share, Multi-tab browsing, Bookmark and history management, Keyword search in source code, Switch between static and dynamic HTML, Customizable themes and fonts

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium (Monthly plan) | $1.99 | per month |
| Premium (Buying out) | $19.99 | one-time |


### XML Viewer Converter JSON PDF

[App page](https://appshunter.io/ios/app/xml-viewer-converter-json-pdf/id1641792040)

This app allows you to view, edit, convert, and validate XML files. It offers AI-powered XML code generation and converts files to PDF and JSON. Enjoy a user-friendly interface and flexible subscription options.

**Highlights:** View, edit, and save XML files, Convert XML to PDF and JSON, AI-powered XML code generation, Built-in XML validator, User-friendly interface

**Features:** Vision Pro support

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Access (Monthly) | $11.99 | per month |
| Pro Access (Annual) | $12.99 | per year |
| XML Lifetime Discount | $4.99 | one-time |
| XML Lifetime Premium Access | $7.99 | one-time |


## Frequently asked questions

### Is HTML Viewer Pro free?

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

### Is XML Viewer Converter JSON PDF free?

XML Viewer Converter JSON PDF is free to download, with in-app purchases available.

### Which has better reviews, HTML Viewer Pro or XML Viewer Converter JSON PDF?

XML Viewer Converter JSON PDF is rated higher. HTML Viewer Pro averages 3.9 out of 5 from 45 ratings, while XML Viewer Converter JSON PDF averages 4.1 from 121 ratings.

### Do HTML Viewer Pro or XML Viewer Converter JSON PDF have ads?

HTML Viewer Pro shows ads; XML Viewer Converter JSON PDF does not.

### Which is updated more often, HTML Viewer Pro or XML Viewer Converter JSON PDF?

HTML Viewer Pro ships an update every 15 months, and XML Viewer Converter JSON PDF fortnightly. Most recently, HTML Viewer Pro was updated on September 5, 2026 and XML Viewer Converter JSON PDF on September 21, 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.*