# UUID vs UU

UUID and UU both sit at 5.0 stars, but that hides the real split: 100% of UU's written reviews are positive against 50% of UUID's. UUID's advantage is price (Free vs $0.99) and update cadence (every 2 months vs every 21 months). On rating, ratings volume, ads and in-app purchases there is nothing between them.

UUID is free to download; UU costs $0.99 up front. 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 UU. Both are backed by a comparable volume of ratings — 1 and 2 respectively. Written reviews are what separate them: 50% of UUID's written reviews are positive against 100% of UU's.

UUID ships an update every 2 months, UU every 21 months. The most recent releases landed on October 27, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | UUID | UU |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| Rating | [5.0 (1 ratings)](https://appshunter.io/ios/app/uuid-generator/id1603050260/reviews) | [5.0 (2 ratings)](https://appshunter.io/ios/app/uu-uuid-generator/id1614731646/reviews) |
| Number of ratings | 1 | **2** |
| Positive reviews | 50.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 2 months** | Every 21 months |
| Monetization | **Free** | Paid |
| Size | 7 MB | 7 MB |
| Requires iOS | **13.0** | 14.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Julian Lau](https://appshunter.io/developer/1603050262) | [JP McGlone LLC](https://appshunter.io/developer/850098774) |

## 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


### UU

[App page](https://appshunter.io/ios/app/uu-uuid-generator/id1614731646)

Easily create unique identifiers for your projects. This tool generates UUIDs on demand and can automatically copy them to your clipboard. It also features on-the-fly QR code generation and supports dark mode for a comfortable user experience.

**Highlights:** Generate UUID, Auto-generate on launch, Auto-copy to clipboard, Generate QR code, Dark Mode support

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is UUID free?

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

### Is UU free?

UU costs $0.99, with no in-app purchases.

### Which has better reviews, UUID or UU?

UUID and UU are both rated 5.0 out of 5 on the App Store, from 1 and 2 ratings respectively.

### Do UUID or UU have ads?

Neither UUID nor UU shows ads.

### Which is updated more often, UUID or UU?

UUID ships an update every 2 months, and UU every 21 months. Most recently, UUID was updated on October 27, 2026 and UU on October 24, 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.*