# PK10000 vs Rusty.

The clearest difference is iOS requirement: PK10000 at 15.2 against Rusty.'s 26.0. On price, update cadence, ads and in-app purchases there is nothing between them.

Both are free to download. PK10000 sells 4 in-app purchases, starting at $0.99 per month and Rusty. sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

PK10000 ships an update every 3 weeks, Rusty. every 6 weeks. The most recent releases landed on September 29, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | PK10000 | Rusty. |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.3 (6 ratings)](https://appshunter.io/ios/app/pk10000-focus-timer/id6469668991/reviews)** | — |
| Number of ratings | **6** | — |
| Positive reviews | 54.5% of reviews | — |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 6 weeks |
| Monetization | Free with in-app purchases | — |
| Size | 56 MB | 1 MB |
| Requires iOS | **15.2** | 26.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [正峰 蒋](https://appshunter.io/developer/1102407664) | [Dario Gartmann](https://appshunter.io/developer/1865263482) |

## What reviewers say

### 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 |


### Rusty.

[App page](https://appshunter.io/ios/app/rusty/id6762121969)

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Rusty. Premium | $2.99 | one-time |


## Frequently asked questions

### Is PK10000 free?

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

### Is Rusty. free?

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

### Do PK10000 or Rusty. have ads?

Neither PK10000 nor Rusty. shows ads.

### Which is updated more often, PK10000 or Rusty.?

PK10000 ships an update every 3 weeks, and Rusty. every 6 weeks. Most recently, PK10000 was updated on September 29, 2026 and Rusty. on October 7, 2026.

---

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