# UI HandBook vs Digia Preview

The clearest difference is in-app purchases: Digia Preview at none against UI HandBook's 1. Digia Preview also leads on iOS requirement (13.0 vs 16.2). On price, update cadence, ads and device support there is nothing between them.

Both are free to download. UI HandBook sells 1 one-off in-app purchase. Digia Preview asks for nothing beyond the download.

UI HandBook ships an update monthly, Digia Preview every 3 weeks. The most recent releases landed on October 31, 2026 and October 27, 2026 respectively.

## The numbers

| Metric | UI HandBook | Digia Preview |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 3 weeks** |
| Size | 20 MB | 83 MB |
| Requires iOS | 16.2 | **13.0** |
| Devices | iPhone, iPad | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [振捷 周](https://appshunter.io/developer/1526093328) | [Digia Tech](https://appshunter.io/developer/1743914989) |

## What reviewers say

### 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 |


### Digia Preview

[App page](https://appshunter.io/ios/app/digia-preview/id6499570725)

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

**In-app purchases:** none


## Frequently asked questions

### Is UI HandBook free?

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

### Is Digia Preview free?

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

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

Neither UI HandBook nor Digia Preview shows ads.

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

UI HandBook ships an update monthly, and Digia Preview every 3 weeks. Most recently, UI HandBook was updated on October 31, 2026 and Digia Preview on October 27, 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.*