# Clockwork vs WindUp

The clearest difference is review sentiment: WindUp at 100% against Clockwork's 43%. WindUp also leads on rating (5.0 vs 4.4) and in-app purchases (none vs 1). Clockwork's advantage is ratings volume (24 vs 2). On price, ads, device support and iOS requirement there is nothing between them.

Both are free to download. Clockwork sells 1 one-off in-app purchase. WindUp asks for nothing beyond the download.

WindUp holds the better App Store score, 5.0 against 4.4. That said, the two scores are not equally well evidenced: Clockwork has 24 ratings behind it against 2, so its average is the more settled of the two. Written reviews point the same way: 43% of Clockwork's written reviews are positive against 100% of WindUp's.

Clockwork ships an update every 3 weeks, WindUp every 2 days. The most recent releases landed on October 19, 2026 and October 9, 2026 respectively.

## The numbers

| Metric | Clockwork | WindUp |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [4.4 (24 ratings)](https://appshunter.io/ios/app/clockwork-watch-app/id1612061033/reviews) | **[5.0 (2 ratings)](https://appshunter.io/ios/app/windup-watch-collection/id6798121124/reviews)** |
| Number of ratings | **24** | 2 |
| Positive reviews | 42.9% of reviews | **100.0% of reviews** |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 3 weeks | **Every 2 days** |
| Monetization | Free with in-app purchases | **Free** |
| Size | 242 MB | 27 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | iPhone | iPhone |
| Age rating | 4+ | 4+ |
| Developer | [Appfred AS](https://appshunter.io/developer/1612061035) | [Sameer Bhutani](https://appshunter.io/developer/1773434301) |

## What reviewers say

### Clockwork

[App page](https://appshunter.io/ios/app/clockwork-watch-app/id1612061033)

This app allows you to measure the accuracy of your watches using your phone's camera. It compares an image of your watch to an atomic clock to calculate its timekeeping offset. Track accuracy over time with graphs and store detailed watch information.

**Highlights:** Measure accuracy using images, Atomic clock synchronization, Accuracy over time graphs, Store detailed watch information, Dark mode support, Digital and analog atomic clock

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Clockwork Premium | $5.99 | one-time |


### WindUp

[App page](https://appshunter.io/ios/app/windup-watch-collection/id6798121124)

This app provides tools to set, maintain, and learn about mechanical watches. It features an interactive museum to explore watch mechanisms and a digital collection to manage your timepieces. Widgets offer at-a-glance information for your home and lock screens.

**Highlights:** Set Assistant for atomic time synchronization, Beat Rate analysis via microphone, Chronograph with tachymeter, Power Reserve tracking, Interactive watch museum, Digital watch collection management, Home and Lock Screen widgets

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

**In-app purchases:** none


## Frequently asked questions

### Is Clockwork free?

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

### Is WindUp free?

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

### Which has better reviews, Clockwork or WindUp?

WindUp is rated higher. Clockwork averages 4.4 out of 5 from 24 ratings, while WindUp averages 5.0 from 2 ratings.

### Do Clockwork or WindUp have ads?

Neither Clockwork nor WindUp shows ads.

### Which is updated more often, Clockwork or WindUp?

Clockwork ships an update every 3 weeks, and WindUp every 2 days. Most recently, Clockwork was updated on October 19, 2026 and WindUp on October 9, 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.*