# OOReader vs XML Viewer Converter JSON PDF

The clearest difference is review sentiment: OOReader at 53% against XML Viewer Converter JSON PDF's 3%. OOReader also leads on monetization model (free with in-app purchases vs subscription). XML Viewer Converter JSON PDF's advantage is ads (none vs shown) and update cadence (fortnightly vs every 2 months). On price and in-app purchases there is nothing between them.

Both are free to download. OOReader sells 1 one-off in-app purchase 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.

OOReader ships an update every 2 months, XML Viewer Converter JSON PDF fortnightly. The most recent releases landed on November 1, 2026 and November 7, 2026 respectively.

## The numbers

| Metric | OOReader | XML Viewer Converter JSON PDF |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.1 (122 ratings)](https://appshunter.io/ios/app/xml-viewer-converter-json-pdf/id1641792040/reviews)** |
| Number of ratings | — | **122** |
| Positive reviews | **53.0% of reviews** | 2.8% of reviews |
| In-app purchases | Yes | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 2 months | **Fortnightly** |
| Monetization | **Free with in-app purchases** | Subscription |
| Size | 37 MB | 51 MB |
| Requires iOS | 16.6 | **14.0.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod, Mac** |
| Age rating | 4+ | +4 |
| Developer | [BML Solutions Inc.](https://appshunter.io/developer/349426067) | [NEURASYNC](https://appshunter.io/developer/1639101560) |

## What reviewers say

### OOReader

[App page](https://appshunter.io/ios/app/ooreader/id480844649)

View office documents from various suites, including OpenOffice, LibreOffice, and Microsoft Office formats, as well as PDFs. Convert documents to PDF for easy sharing and printing, with an internet connection required for conversion.

**Highlights:** View ODF, DOCX, XLSX, PPTX, PDF, Convert documents to PDF, Share and print documents, Page-by-page viewing, Search within documents, Password protected document viewing (PRO)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| OOReader Pro | $3.99 | one-time |

**What reviewers like**

- 👍 Works as advertised
- 🚀 Faithful representation of documents
- 💡 Allows viewing of OpenOffice/LibreOffice docs
- 🚀 Convenient for viewing documents on-the-go
- 👍 Useful for preaching/reading sermons

**What reviewers complain about**

- 🐛 Conversion errors/crashes when opening files
- 🔒 Security concerns with online file conversion
- 🔒 No local viewing, requires internet access
- 🐛 Buggy, unreliable, and unstable
- 🔋 High battery consumption

**Reported bugs**

- Crashes when opening files
- Inconsistent file handling (caching issues)
- Inability to open larger documents
- Compatibility issues with newer iOS versions

**Requested features**

- Add search and delete functions
- Improve handling of password-protected files
- Increase file size/page limit
- Add editing capabilities
- Improve font/formatting preservation


### 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 OOReader free?

OOReader 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.

### Do OOReader or XML Viewer Converter JSON PDF have ads?

OOReader shows ads; XML Viewer Converter JSON PDF does not.

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

OOReader ships an update every 2 months, and XML Viewer Converter JSON PDF fortnightly. Most recently, OOReader was updated on November 1, 2026 and XML Viewer Converter JSON PDF on November 7, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*