# OpenDocument Reader vs ChronoZen

The clearest difference is in-app purchases: OpenDocument Reader at none against ChronoZen's 1. OpenDocument Reader also leads on iOS requirement (15.0 vs 17.0). ChronoZen's advantage is ads (none vs shown). On price and device support there is nothing between them.

Both are free to download. ChronoZen sells 1 one-off in-app purchase. OpenDocument Reader asks for nothing beyond the download.

## The numbers

| Metric | OpenDocument Reader | ChronoZen |
| --- | --- | --- |
| 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** | Yes |
| Ads | Yes | **No** |
| Update frequency | Every 5 weeks | — |
| Monetization | Ad-supported | — |
| Size | 10 MB | 5 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Stefl und Taschauer OG](https://appshunter.io/developer/1452061742) | [Tarik Davulcu](https://appshunter.io/developer/1780533379) |

## 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


### ChronoZen

[App page](https://appshunter.io/ios/app/chronozen/id6759417430)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Lifetime Pro | $4.99 | one-time |


## Frequently asked questions

### Is OpenDocument Reader free?

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

### Is ChronoZen free?

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

### Do OpenDocument Reader or ChronoZen have ads?

OpenDocument Reader shows ads; ChronoZen does not.

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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.*