# UI Playground vs OpenMark

The clearest difference is price: UI Playground at Free against OpenMark's $9.99. UI Playground also leads on update cadence (monthly vs every 6 months). OpenMark's advantage is in-app purchases (none vs 6) and chart position (#56 vs unranked). On review sentiment, ads and iOS requirement there is nothing between them.

UI Playground is free to download; OpenMark costs $9.99 up front. UI Playground sells 6 in-app purchases, starting at $4.99 per 7 days. OpenMark asks for nothing beyond the download.

UI Playground ships an update monthly, OpenMark every 6 months. The most recent releases landed on November 4, 2026 and November 5, 2026 respectively.

## The numbers

| Metric | UI Playground | OpenMark |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| Rating | **[5.0 (3 ratings)](https://appshunter.io/ios/app/ui-playground/id6504997189/reviews)** | — |
| Number of ratings | **3** | — |
| Positive reviews | 66.7% of reviews | **71.4% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | **Monthly** | Every 6 months |
| Monetization | **Free with in-app purchases** | Paid |
| Best chart rank | — | **#56** |
| Size | 75 MB | 8 MB |
| Requires iOS | **17.0** | 18 |
| Devices | iPhone | **iPhone, iPad, Mac** |
| Age rating | 4+ | 4+ |
| Developer | [Emanuel Fernandes](https://appshunter.io/developer/1754554489) | [Rotate, LLC.](https://appshunter.io/developer/1435998437) |

## What reviewers say

### UI Playground

[App page](https://appshunter.io/ios/app/ui-playground/id6504997189)

Design and preview native iOS UI components with customizable options. Export native code to streamline development and share with others. Supports designers, developers, and product owners.

**Highlights:** Explore and customize native UI components, Preview live components with screenshots, Export native code for development, Auto-save and multiple draft support, Adheres to Human Interface Guidelines, Supports semantic colors and SF Symbols, Save to iCloud for cross-device work

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Weekly | $4.99 | per 7 days |
| Monthly | $9.99 | per month |
| Biannual | $23.99 | per 6 months |
| Yearly | $44.99 | per year |
| Yearly | $49.99 | per year |
| Lifetime | $149.00 | one-time |


### OpenMark

[App page](https://appshunter.io/ios/app/openmark-markdown-viewer/id6759467015)

**Currently charting:** #56 Top Paid · Developer Tools (US App Store)

View and render markdown files with advanced features like Mermaid diagrams and LaTeX math. Supports various themes, code highlighting, and offline access. Ideal for developers and writers working with markdown on iOS devices.

**Highlights:** Mermaid diagram rendering, LaTeX math support, Code block highlighting, GitHub-style alerts, Interactive checkboxes, Offline functionality, Multiple themes

**Features:** Vision Pro support

**In-app purchases:** none


## Frequently asked questions

### Is UI Playground free?

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

### Is OpenMark free?

OpenMark costs $9.99, with no in-app purchases.

### Do UI Playground or OpenMark have ads?

Neither UI Playground nor OpenMark shows ads.

### Which is updated more often, UI Playground or OpenMark?

UI Playground ships an update monthly, and OpenMark every 6 months. Most recently, UI Playground was updated on November 4, 2026 and OpenMark on November 5, 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.*