# PatchDoc vs OpenDisplay

The clearest difference is in-app purchases: OpenDisplay at none against PatchDoc's 1. OpenDisplay also leads on iOS requirement (15.0 vs 17.0). PatchDoc's advantage is update cadence (every 3 days vs every 8 days). On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. PatchDoc sells 1 one-off in-app purchase. OpenDisplay asks for nothing beyond the download.

On the App Store both sit at effectively the same score — 5.0 for PatchDoc against 4.9 for OpenDisplay. Both are backed by a comparable volume of ratings — 6 and 8 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

PatchDoc ships an update every 3 days, OpenDisplay every 8 days. The most recent releases landed on September 1, 2026 and September 23, 2026 respectively.

## The numbers

| Metric | PatchDoc | OpenDisplay |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (6 ratings)](https://appshunter.io/ios/app/patchdocfile-and-code-editor/id6763091539/reviews)** | [4.9 (8 ratings)](https://appshunter.io/ios/app/opendisplay/id6780264891/reviews) |
| Number of ratings | 6 | **8** |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Every 3 days** | Every 8 days |
| Monetization | Free with in-app purchases | **Free** |
| Size | 35 MB | 1 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [夏骏 倪](https://appshunter.io/developer/1892993247) | [Philip Poloczek](https://appshunter.io/developer/1333036183) |

## What reviewers say

### PatchDoc

[App page](https://appshunter.io/ios/app/patchdocfile-and-code-editor/id6763091539)

A versatile document editor and viewer for iPhone and iPad. Quickly edit text, code, and CSV files, preview PDFs and Office documents, and extract archives. Streamline your mobile file management.

**Highlights:** Text and code editing with syntax highlighting, CSV table browsing and editing, HTML source editing with live preview, PDF viewing with annotations, Preview for Office documents and images, Archive browsing and extraction

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| 终身会员 | $0.99 | one-time |


### OpenDisplay

[App page](https://appshunter.io/ios/app/opendisplay/id6780264891)

Transform your iPhone or iPad into a genuine second display for your Mac. This open-source solution allows you to extend your screen space, keeping essential apps visible. Connect via USB for minimal latency or Wi-Fi for easy setup.

**Highlights:** Use iPhone/iPad as a second Mac display, Connect via USB or Wi-Fi, Retina-sharp rendering, Touch and scroll support, Portrait or landscape orientation, Private by design, no tracking

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

**In-app purchases:** none


## Frequently asked questions

### Is PatchDoc free?

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

### Is OpenDisplay free?

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

### Which has better reviews, PatchDoc or OpenDisplay?

PatchDoc is rated higher. PatchDoc averages 5.0 out of 5 from 6 ratings, while OpenDisplay averages 4.9 from 8 ratings.

### Do PatchDoc or OpenDisplay have ads?

Neither PatchDoc nor OpenDisplay shows ads.

### Which is updated more often, PatchDoc or OpenDisplay?

PatchDoc ships an update every 3 days, and OpenDisplay every 8 days. Most recently, PatchDoc was updated on September 1, 2026 and OpenDisplay on September 23, 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.*