# PCFCOne vs Unruh

The clearest difference is in-app purchases: PCFCOne at none against Unruh's 4. PCFCOne also leads on update cadence (every 5 days vs every 3 weeks) and iOS requirement (15.6 vs 26.0). On price, ads and device support there is nothing between them.

Both are free to download. Unruh sells 4 one-off in-app purchases. PCFCOne asks for nothing beyond the download.

PCFCOne ships an update every 5 days, Unruh every 3 weeks. The most recent releases landed on October 24, 2026 and October 16, 2026 respectively.

## The numbers

| Metric | PCFCOne | Unruh |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[4.0 (1 ratings)](https://appshunter.io/ios/app/unruh-watch-accuracy/id6760858048/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 3 weeks |
| Monetization | — | Free |
| Size | 51 MB | 5 MB |
| Requires iOS | **15.6** | 26.0 |
| Devices | **iPhone, iPod** | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [PCFC](https://appshunter.io/developer/1575524684) | [Noel Weinberg](https://appshunter.io/developer/1823665034) |

## What reviewers say

### PCFCOne

[App page](https://appshunter.io/ios/app/pcfcone/id6741824726)

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

**In-app purchases:** none


### Unruh

[App page](https://appshunter.io/ios/app/unruh-watch-accuracy/id6760858048)

Measure the accuracy of your mechanical watches against atomic time. Track your collection, compare against industry standards, and analyze performance trends over time. Offers diagnostic tools and advanced features for enthusiasts.

**Highlights:** Atomic time reference, Precision offset measurement, Watch collection management, Industry standard comparison, Accuracy trend visualization, Timegrapher diagnostic tool, Magnetism check

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

**In-app purchases (4)**

| Purchase | Price | Billing |
| --- | --- | --- |
| An Espresso | $1.99 | one-time |
| A Cappuccino | $3.99 | one-time |
| Unruh Pro | $5.99 | one-time |
| Coffee & Cake | $8.99 | one-time |


## Frequently asked questions

### Is PCFCOne free?

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

### Is Unruh free?

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

### Do PCFCOne or Unruh have ads?

Neither PCFCOne nor Unruh shows ads.

### Which is updated more often, PCFCOne or Unruh?

PCFCOne ships an update every 5 days, and Unruh every 3 weeks. Most recently, PCFCOne was updated on October 24, 2026 and Unruh on October 16, 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.*