# Collabora Office vs OpenDocument Reader

The clearest difference is rating: OpenDocument Reader at 4.5 against Collabora Office's 3.3. OpenDocument Reader also leads on ratings volume (897 vs 114). Collabora Office's advantage is ads (none vs shown) and monetization model (free vs ad-supported). On price, update cadence, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

OpenDocument Reader holds the better App Store score, 4.5 against 3.3. That said, the two scores are not equally well evidenced: OpenDocument Reader has 897 ratings behind it against 114, so its average is the more settled of the two. Written reviews complicate that: 41% of Collabora Office's written reviews are positive against 31% of OpenDocument Reader's, so the app with the better star average is not the one people write more warmly about.

Both ship on a similar rhythm, roughly every 2 months. The most recent releases landed on September 21, 2026 and September 22, 2026 respectively.

## The numbers

| Metric | Collabora Office | OpenDocument Reader |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.3 (114 ratings)](https://appshunter.io/ios/app/collabora-office/id1440482071/reviews) | **[4.5 (897 ratings)](https://appshunter.io/ios/app/opendocument-reader-view-odt/id1510195065/reviews)** |
| Number of ratings | 114 | **897** |
| Positive reviews | **40.8% of reviews** | 30.9% of reviews |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | Every 2 months |
| Monetization | **Free** | Ad-supported |
| Size | 320 MB | 9 MB |
| Requires iOS | 16.5 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Collabora Productivity](https://appshunter.io/developer/918120010) | [Stefl und Taschauer OG](https://appshunter.io/developer/1452061742) |

## What reviewers say

### Collabora Office

[App page](https://appshunter.io/ios/app/collabora-office/id1440482071)

Create and edit documents, spreadsheets, and presentations on your mobile device. This app offers compatibility with a wide range of file formats, including Open Document and Microsoft Office. It's an open-source solution for on-the-go productivity.

**Highlights:** Text editor, Spreadsheet program, Presentation program, Open Document Format support, Microsoft Office file compatibility, Open Source

**Features:** Vision Pro support

**In-app purchases:** none

**What reviewers like**

- 🚀 Excellent functionality
- 🔒 Privacy-focused
- 👍 Intuitive interface
- 🚀 Seamless file compatibility
- 👍 Useful for on-the-go editing

**What reviewers complain about**

- 🐛 Crashes and freezes
- 🐛 Buggy scrolling and text selection
- 🐛 Unreliable saving and file management
- 👎 Clunky keyboard and trackpad support
- 👎 Slow performance with larger documents

**Reported bugs**

- Unable to open password-protected documents
- Formatting issues with imported documents
- Inconsistent behavior when switching between apps
- Keyboard and cursor controls not working as expected

**Requested features**

- Dark mode option
- Improved cursor and text selection controls
- Better integration with cloud storage services
- More intuitive file naming and saving process
- Enhanced spreadsheet functionality


### OpenDocument Reader

[App page](https://appshunter.io/ios/app/opendocument-reader-view-odt/id1510195065)

View and edit ODT, ODS, and ODP files on your mobile device. Seamlessly open documents from cloud storage or your device's file explorer, with support for password-protected files and keyword searching. Enjoy offline access and basic editing capabilities.

**Highlights:** View ODT, ODS, ODP files, Basic document editing, Open from cloud storage, Password-protected document support, Keyword search and highlighting, Offline functionality, Print documents

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

**In-app purchases:** none

**What reviewers like**

- 👍 Easy to use
- 🚀 Fast file opening
- 💡 Good ODT reader

**What reviewers complain about**

- 🐛 Corrupted files upon editing
- 🐛 Presentation issues with formatting and features
- 🐛 Inability to edit spreadsheets properly

**Reported bugs**

- Corrupted files
- Formatting issues
- Crashes and app closing issues

**Requested features**

- Dark mode option
- Better spreadsheet editing capabilities
- Improved file format compatibility


## Frequently asked questions

### Is Collabora Office free?

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

### Is OpenDocument Reader free?

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

### Which has better reviews, Collabora Office or OpenDocument Reader?

OpenDocument Reader is rated higher. Collabora Office averages 3.3 out of 5 from 114 ratings, while OpenDocument Reader averages 4.5 from 897 ratings.

### Do Collabora Office or OpenDocument Reader have ads?

OpenDocument Reader shows ads; Collabora Office does not.

### Which is updated more often, Collabora Office or OpenDocument Reader?

Collabora Office ships an update every 2 months, and OpenDocument Reader every 2 months. Most recently, Collabora Office was updated on September 21, 2026 and OpenDocument Reader on September 22, 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.*