# UUID vs IDFA & Device Info Viewer

The clearest difference is ads: UUID at none against IDFA & Device Info Viewer's shown. UUID also leads on monetization model (free vs ad-supported) and iOS requirement (13.0 vs 15.6). IDFA & Device Info Viewer's advantage is review sentiment (67% vs 50%) and update cadence (every 3 weeks vs every 2 months). On price, rating, ratings volume and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

On the App Store both sit at effectively the same score — 5.0 for UUID against 5.0 for IDFA & Device Info Viewer. Both are backed by a comparable volume of ratings — 1 and 1 respectively. Written reviews are what separate them: 50% of UUID's written reviews are positive against 67% of IDFA & Device Info Viewer's.

UUID ships an update every 2 months, IDFA & Device Info Viewer every 3 weeks. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | UUID | IDFA & Device Info Viewer |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/uuid-generator/id1603050260/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/idfa-and-device-info-viewer/id6745802620/reviews) |
| Number of ratings | 1 | 1 |
| Positive reviews | 50.0% of reviews | **66.7% of reviews** |
| In-app purchases | No | No |
| Ads | **No** | Yes |
| Update frequency | Every 2 months | **Every 3 weeks** |
| Monetization | **Free** | Ad-supported |
| Size | 7 MB | 17 MB |
| Requires iOS | **13.0** | 15.6 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Julian Lau](https://appshunter.io/developer/1603050262) | [Rodrigo Belloso](https://appshunter.io/developer/1361382340) |

## What reviewers say

### UUID

[App page](https://appshunter.io/ios/app/uuid-generator/id1603050260)

This utility app quickly generates random Version 4 or Version 1 UUIDs. You can copy and share them directly, and even generate up to 5000 at once. It works both online and offline.

**Highlights:** Generate Version 4 UUIDs, Generate Version 1 UUIDs, Copy and share UUIDs, Batch generation (up to 5000), Offline functionality, Online functionality

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

**In-app purchases:** none


### IDFA & Device Info Viewer

[App page](https://appshunter.io/ios/app/idfa-and-device-info-viewer/id6745802620)

Access your device's advertising ID (IDFA) and detailed technical specifications. View, copy, and share system information like model, OS, and storage. Designed for developers and curious users, it offers advanced insights through rewarded videos.

**Highlights:** View and copy IDFA, Access system details (model, OS, resolution, battery), Unlock extended info (IDFV, region, time zone, storage, memory, CPU), Export or share data, No logins or clutter, Advanced insights via rewarded video

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

**In-app purchases:** none


## Frequently asked questions

### Is UUID free?

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

### Is IDFA & Device Info Viewer free?

IDFA & Device Info Viewer is free to download, with no in-app purchases.

### Which has better reviews, UUID or IDFA & Device Info Viewer?

UUID and IDFA & Device Info Viewer are both rated 5.0 out of 5 on the App Store, from 1 and 1 ratings respectively.

### Do UUID or IDFA & Device Info Viewer have ads?

IDFA & Device Info Viewer shows ads; UUID does not.

### Which is updated more often, UUID or IDFA & Device Info Viewer?

UUID ships an update every 2 months, and IDFA & Device Info Viewer every 3 weeks. Most recently, UUID was updated on October 27, 2026 and IDFA & Device Info Viewer on October 24, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*