# OOReader vs ACEmobile

The clearest difference is in-app purchases: ACEmobile at none against OOReader's 1. ACEmobile also leads on ads (none vs shown). OOReader's advantage is update cadence (every 2 months vs every 5 months). On price, device support and iOS requirement there is nothing between them.

Both are free to download. OOReader sells 1 one-off in-app purchase. ACEmobile asks for nothing beyond the download.

OOReader ships an update every 2 months, ACEmobile every 5 months. The most recent releases landed on October 15, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | OOReader | ACEmobile |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 53.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 2 months** | Every 5 months |
| Monetization | Free with in-app purchases | — |
| Size | 37 MB | 33 MB |
| Requires iOS | 16.6 | 16.6 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [BML Solutions Inc.](https://appshunter.io/developer/349426067) | [ONYAX Srl](https://appshunter.io/developer/1407178428) |

## 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


### ACEmobile

[App page](https://appshunter.io/ios/app/acemobile/id1507421986)

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

**In-app purchases:** none


## Frequently asked questions

### Is OOReader free?

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

### Is ACEmobile free?

ACEmobile is free to download, with no in-app purchases.

### Do OOReader or ACEmobile have ads?

OOReader shows ads; ACEmobile does not.

### Which is updated more often, OOReader or ACEmobile?

OOReader ships an update every 2 months, and ACEmobile every 5 months. Most recently, OOReader was updated on October 15, 2026 and ACEmobile on September 30, 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.*