# UDIDit vs Preview App

The clearest difference is update cadence: UDIDit at every 4 months against Preview App's every 13 months. UDIDit also leads on chart position (#91 vs unranked). On price, ads, in-app purchases and device support there is nothing between them.

UDIDit costs $1.99 and Preview App $1.99 up front. Neither carries in-app purchases, so what you see is what you pay.

UDIDit ships an update every 4 months, Preview App every 13 months. The most recent releases landed on September 22, 2026 and September 21, 2026 respectively.

## The numbers

| Metric | UDIDit | Preview App |
| --- | --- | --- |
| Price | $1.99 | $1.99 |
| Rating | **[4.1 (179 ratings)](https://appshunter.io/ios/app/udidit/id326123820/reviews)** | — |
| Number of ratings | **179** | — |
| Positive reviews | 90.9% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 months** | Every 13 months |
| Monetization | Free | — |
| Best chart rank | **#91** | — |
| Size | 0 MB | 8 MB |
| Requires iOS | 16.2 | **15.6** |
| Devices | iPhone, iPad | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Bite Size Bytes, Inc.](https://appshunter.io/developer/314920640) | [Cangmu Technology Co., Ltd](https://appshunter.io/developer/1736424342) |

## What reviewers say

### UDIDit

[App page](https://appshunter.io/ios/app/udidit/id326123820)

**Currently charting:** #91 Top Paid · Developer Tools (US App Store)

Access and share detailed device information directly from your iPhone or iPad. This app provides key specifications like model, iOS version, screen resolution, and storage, simplifying collaboration for developers and testers.

**Highlights:** Comprehensive device details, Model identification and name, iOS version and build number, Screen resolution, Storage capacity, Seamless report sharing

**Features:** Vision Pro support

**In-app purchases:** none


### Preview App

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

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

**In-app purchases:** none


## Frequently asked questions

### Is UDIDit free?

UDIDit costs $1.99, with no in-app purchases.

### Is Preview App free?

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

### Do UDIDit or Preview App have ads?

Neither UDIDit nor Preview App shows ads.

### Which is updated more often, UDIDit or Preview App?

UDIDit ships an update every 4 months, and Preview App every 13 months. Most recently, UDIDit was updated on September 22, 2026 and Preview App on September 21, 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.*