# OpenDocument Reader vs IaGPS

The clearest difference is ads: IaGPS at none against OpenDocument Reader's shown. IaGPS also leads on iOS requirement (13.0 vs 15.0). 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 ships an update every 5 weeks, IaGPS every 3 weeks. The most recent releases landed on October 1, 2026 and September 15, 2026 respectively.

## The numbers

| Metric | OpenDocument Reader | IaGPS |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (902 ratings)](https://appshunter.io/ios/app/opendocument-reader-view-odt/id1510195065/reviews)** | — |
| Number of ratings | **902** | — |
| Positive reviews | 30.5% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | **Every 3 weeks** |
| Monetization | Ad-supported | — |
| Size | 10 MB | 121 MB |
| Requires iOS | 15.0 | **13.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Stefl und Taschauer OG](https://appshunter.io/developer/1452061742) | [Aldeia Sistemas](https://appshunter.io/developer/1798549157) |

## 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


### IaGPS

[App page](https://appshunter.io/ios/app/iagps/id6743721724)

**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 IaGPS free?

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

### Do OpenDocument Reader or IaGPS have ads?

OpenDocument Reader shows ads; IaGPS does not.

### Which is updated more often, OpenDocument Reader or IaGPS?

OpenDocument Reader ships an update every 5 weeks, and IaGPS every 3 weeks. Most recently, OpenDocument Reader was updated on October 1, 2026 and IaGPS on September 15, 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.*