# OOReader vs Universal Converter Pro

The clearest difference is update cadence: Universal Converter Pro at every 5 days against OOReader's every 2 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. OOReader sells 1 one-off in-app purchase and Universal Converter Pro sells 3 in-app purchases, starting at $2.99 per month. Whichever you choose, the download price is not the number that matters.

OOReader ships an update every 2 months, Universal Converter Pro every 5 days. The most recent releases landed on October 23, 2026 and October 29, 2026 respectively.

## The numbers

| Metric | OOReader | Universal Converter Pro |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 53.0% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | Yes | Yes |
| Update frequency | Every 2 months | **Every 5 days** |
| Monetization | Free with in-app purchases | — |
| Size | 37 MB | 55 MB |
| Requires iOS | 16.6 | **16.4** |
| Devices | **iPhone, iPad** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [BML Solutions Inc.](https://appshunter.io/developer/349426067) | [Yaseen Sweirki](https://appshunter.io/developer/1850607799) |

## 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


### Universal Converter Pro

[App page](https://appshunter.io/ios/app/universal-converter-pro/id6817188620)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly Pro | $2.99 | per month |
| Annual Pro | $14.99 | per year |
| Lifetime Pro | $24.99 | one-time |


## Frequently asked questions

### Is OOReader free?

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

### Is Universal Converter Pro free?

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

### Do OOReader or Universal Converter Pro have ads?

Both OOReader and Universal Converter Pro show ads.

### Which is updated more often, OOReader or Universal Converter Pro?

OOReader ships an update every 2 months, and Universal Converter Pro every 5 days. Most recently, OOReader was updated on October 23, 2026 and Universal Converter Pro 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.*