# OpenDocument Reader vs 3Sign Documents

The clearest difference is ads: 3Sign Documents at none against OpenDocument Reader's shown. 3Sign Documents also leads on update cadence (every 4 days vs every 3 weeks). On price, in-app purchases, device support and iOS requirement 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 ships an update every 3 weeks, 3Sign Documents every 4 days. The most recent releases landed on October 22, 2026 and October 11, 2026 respectively.

## The numbers

| Metric | OpenDocument Reader | 3Sign Documents |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (909 ratings)](https://appshunter.io/ios/app/opendocument-reader-view-odt/id1510195065/reviews)** | — |
| Number of ratings | **909** | — |
| Positive reviews | 30.1% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 3 weeks | **Every 4 days** |
| Monetization | Ad-supported | — |
| Size | 11 MB | 21 MB |
| Requires iOS | 15.0 | 15.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Stefl und Taschauer OG](https://appshunter.io/developer/1452061742) | [giovanni vaccalluzzo](https://appshunter.io/developer/1352731211) |

## What reviewers say

### 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


### 3Sign Documents

[App page](https://appshunter.io/ios/app/3sign-documents/id6781716969)

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

**In-app purchases:** none


## Frequently asked questions

### Is OpenDocument Reader free?

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

### Is 3Sign Documents free?

3Sign Documents is free to download, with no in-app purchases.

### Do OpenDocument Reader or 3Sign Documents have ads?

OpenDocument Reader shows ads; 3Sign Documents does not.

### Which is updated more often, OpenDocument Reader or 3Sign Documents?

OpenDocument Reader ships an update every 3 weeks, and 3Sign Documents every 4 days. Most recently, OpenDocument Reader was updated on October 22, 2026 and 3Sign Documents on October 11, 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.*