# OpenDocument Reader Pro vs PDF Hero

The clearest difference is price: PDF Hero at Free against OpenDocument Reader Pro's $3.99. PDF Hero also leads on rating (4.6 vs 4.2) and ratings volume (10K vs 292). OpenDocument Reader Pro's advantage is in-app purchases (none vs 14). On review sentiment, ads, chart position and device support there is nothing between them.

PDF Hero is free to download; OpenDocument Reader Pro costs $3.99 up front. PDF Hero sells 12 in-app purchases, starting at $3.99 per 7 days. OpenDocument Reader Pro asks for nothing beyond the download.

PDF Hero holds the better App Store score, 4.6 against 4.2. That said, the two scores are not equally well evidenced: PDF Hero has 10K ratings behind it against 292, so its average is the more settled of the two. Written reviews complicate that: 20% of OpenDocument Reader Pro's written reviews are positive against 18% of PDF Hero's, so the app with the better star average is not the one people write more warmly about.

OpenDocument Reader Pro ships an update every 2 months, PDF Hero every 3 weeks. The most recent releases landed on September 25, 2026 and September 28, 2026 respectively.

## The numbers

| Metric | OpenDocument Reader Pro | PDF Hero |
| --- | --- | --- |
| Price | $3.99 | **Free** |
| Rating | [4.2 (292 ratings)](https://appshunter.io/ios/app/opendocument-reader-pro/id1452061743/reviews) | **[4.6 (10K ratings)](https://appshunter.io/ios/app/pdf-hero-pdf-editor-and-reader/id1512973255/reviews)** |
| Number of ratings | 292 | **10K** |
| Positive reviews | **19.5% of reviews** | 17.8% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | **Ad-supported** | Free with in-app purchases |
| Best chart rank | **#74** | #188 |
| Size | 6 MB | 536 MB |
| Requires iOS | 15.0 | **14.0** |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Stefl und Taschauer OG](https://appshunter.io/developer/1452061742) | [Mosaic S.r.l.](https://appshunter.io/developer/570748343) |

## What reviewers say

### OpenDocument Reader Pro

[App page](https://appshunter.io/ios/app/opendocument-reader-pro/id1452061743)

**Currently charting:** #74 Top Paid · Business (US App Store)

View and edit ODF files like ODT, ODS, and ODP on your mobile device. Access documents from cloud storage or your device's file explorer, and even open password-protected files. Supports a wide range of other file formats for comprehensive document management.

**Highlights:** View and edit ODT, ODS, ODP files, Supports LibreOffice and OpenOffice formats, Open files from cloud storage and other apps, Edit documents with basic text modifications, Open password-protected documents, Search and highlight keywords, Offline capability

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

**In-app purchases:** none

**What reviewers like**

- 👍 Can open documents
- 👍 Can view documents
- 👍 Imports OpenOffice beautifully
- 👍 Useful for quick edits
- 👍 Offline functionality

**What reviewers complain about**

- 🐛 Cannot edit documents
- 🐛 Formatting issues
- 🐛 Text illegible/overlapping
- 🐛 App crashes
- 🐛 Does not save changes

**Reported bugs**

- App crashes when saving
- App crashes when opening files
- App crashes when typing
- App crashes when searching
- Changes not saved

**Requested features**

- Add search function
- Add ability to create new documents
- Improve editing functionality
- Fix formatting issues
- Improve handling of large files


### PDF Hero

[App page](https://appshunter.io/ios/app/pdf-hero-pdf-editor-and-reader/id1512973255)

**Currently charting:** #188 Top Grossing · Business (US App Store)

Edit, create, and manage PDF documents on your mobile device. Annotate, fill forms, sign, and share files with ease. Offers advanced features like OCR and compression for enhanced document control.

**Highlights:** Create PDFs from scratch, Edit text and annotate documents, Fill and sign PDF forms, Convert images/documents to PDF, OCR for editable text, Compress and merge PDFs, Password-protect sensitive data

**Features:** Vision Pro support

**In-app purchases (12)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly with free trial | $3.99 | per 7 days |
| Weekly Subscription | $3.99 | per 7 days |
| Weekly Premium | $5.99 | per 7 days |
| Weekly Premium with Free Trial | $5.99 | per 7 days |
| PDF Hero Premium 1 Month | $9.99 | per month |
| PDF Hero Premium 1 Month | $10.99 | per month |
| PDF Hero Premium 1 Month | $11.99 | per month |
| Convert & Merge PDF Documents | $14.99 | per month |
| PDF Hero Premium 3 Months | $19.99 | per 3 months |
| PDF Hero Premium 1 Year | $34.99 | per year |
| PDF Hero Premium 1 Year | $89.99 | per year |
| PDF Hero Premium 1 Year | $99.99 | per year |

**What reviewers like**

- 💡 Useful PDF editing features
- 🚀 Easy to use
- 👍 Signature functionality

**What reviewers complain about**

- 🐛 Frequent crashes and malfunctions
- 🐛 Inconsistent behavior and glitches
- 🔋 High subscription cost
- 🔒 Difficult to cancel subscription
- 👎 Poor text editing capabilities

**Reported bugs**

- Text disappearing or jumping around during editing
- Inability to save or transfer edited documents
- App crashing or freezing during use
- Incorrect rendering of PDF content

**Requested features**

- Improved text editing and manipulation
- Better file management and organization
- Seamless integration with other apps
- Clearer subscription and cancellation policies


## Frequently asked questions

### Is OpenDocument Reader Pro free?

OpenDocument Reader Pro costs $3.99, with no in-app purchases.

### Is PDF Hero free?

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

### Which has better reviews, OpenDocument Reader Pro or PDF Hero?

PDF Hero is rated higher. OpenDocument Reader Pro averages 4.2 out of 5 from 292 ratings, while PDF Hero averages 4.6 from 10K ratings.

### Do OpenDocument Reader Pro or PDF Hero have ads?

Neither OpenDocument Reader Pro nor PDF Hero shows ads.

### Which is updated more often, OpenDocument Reader Pro or PDF Hero?

OpenDocument Reader Pro ships an update every 2 months, and PDF Hero every 3 weeks. Most recently, OpenDocument Reader Pro was updated on September 25, 2026 and PDF Hero on September 28, 2026.

### Which is more popular, OpenDocument Reader Pro or PDF Hero?

OpenDocument Reader Pro currently peaks at #74 in the App Store charts, and PDF Hero at #188. Chart position reflects recent download velocity rather than total install base.

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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.*