# Preview App vs UI HandBook

The clearest difference is price: UI HandBook at Free against Preview App's $1.99. UI HandBook also leads on update cadence (monthly vs every 13 months). Preview App's advantage is in-app purchases (none vs 1). On ads, device support and iOS requirement there is nothing between them.

UI HandBook is free to download; Preview App costs $1.99 up front. UI HandBook sells 1 one-off in-app purchase. Preview App asks for nothing beyond the download.

Preview App ships an update every 13 months, UI HandBook monthly. The most recent releases landed on September 21, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Preview App | UI HandBook |
| --- | --- | --- |
| Price | $1.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 13 months | **Monthly** |
| Size | 8 MB | 20 MB |
| Requires iOS | **15.6** | 16.2 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Cangmu Technology Co., Ltd](https://appshunter.io/developer/1736424342) | [振捷 周](https://appshunter.io/developer/1526093328) |

## What reviewers say

### Preview App

[App page](https://appshunter.io/ios/app/preview-app-store-simulator/id1626025800)

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

**In-app purchases:** none


### UI HandBook

[App page](https://appshunter.io/ios/app/ui-handbook/id6463360470)

**Features:** Vision Pro support

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock App | $4.99 | one-time |


## Frequently asked questions

### Is Preview App free?

Preview App costs $1.99, with no in-app purchases.

### Is UI HandBook free?

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

### Do Preview App or UI HandBook have ads?

Neither Preview App nor UI HandBook shows ads.

### Which is updated more often, Preview App or UI HandBook?

Preview App ships an update every 13 months, and UI HandBook monthly. Most recently, Preview App was updated on September 21, 2026 and UI HandBook on September 19, 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.*