# UU vs PK10000

The clearest difference is review sentiment: UU at 100% against PK10000's 55%. UU also leads on rating (5.0 vs 4.3) and in-app purchases (none vs 4). PK10000's advantage is price (Free vs $0.99) and update cadence (every 3 weeks vs every 21 months). On ads, device support and iOS requirement there is nothing between them.

PK10000 is free to download; UU costs $0.99 up front. PK10000 sells 4 in-app purchases, starting at $0.99 per month. UU asks for nothing beyond the download.

UU holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 2 and 6 respectively. Written reviews point the same way: 100% of UU's written reviews are positive against 55% of PK10000's.

UU ships an update every 21 months, PK10000 every 3 weeks. Both last shipped on October 24, 2026.

## The numbers

| Metric | UU | PK10000 |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | **[5.0 (2 ratings)](https://appshunter.io/ios/app/uu-uuid-generator/id1614731646/reviews)** | [4.3 (6 ratings)](https://appshunter.io/ios/app/pk10000-focus-timer/id6469668991/reviews) |
| Number of ratings | 2 | **6** |
| Positive reviews | **100.0% of reviews** | 54.5% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 21 months | **Every 3 weeks** |
| Monetization | Paid | **Free with in-app purchases** |
| Size | 7 MB | 56 MB |
| Requires iOS | **14.0** | 15.2 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [JP McGlone LLC](https://appshunter.io/developer/850098774) | [正峰 蒋](https://appshunter.io/developer/1102407664) |

## What reviewers say

### 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


### PK10000

[App page](https://appshunter.io/ios/app/pk10000-focus-timer/id6469668991)

This app helps you achieve mastery through deliberate practice by tracking your progress towards long-term goals. It offers goal management, detailed statistics, and a Pomodoro timer to enhance focus and efficiency.

**Highlights:** Goal Management (100-10,000 hours), Tag Classification (12 categories), Data Statistics (daily, monthly, yearly), Pomodoro Timer (study/break sessions), Minimalist Interface, Subscription Plans

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $0.99 | per month |
| Annually | $3.99 | per year |
| Early Bird MemberShip | $2.99 | one-time |
| Lifetime | $9.99 | one-time |


## Frequently asked questions

### Is UU free?

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

### Is PK10000 free?

PK10000 is free to download, with in-app purchases available.

### Which has better reviews, UU or PK10000?

UU is rated higher. UU averages 5.0 out of 5 from 2 ratings, while PK10000 averages 4.3 from 6 ratings.

### Do UU or PK10000 have ads?

Neither UU nor PK10000 shows ads.

### Which is updated more often, UU or PK10000?

UU ships an update every 21 months, and PK10000 every 3 weeks. Most recently, UU was updated on October 24, 2026 and PK10000 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.*