# Clockwork vs Sim2Go App

The clearest difference is in-app purchases: Sim2Go App at none against Clockwork's 1. Sim2Go App also leads on iOS requirement (12.0 vs 16.4). On price there is nothing between them.

Both are free to download. Clockwork sells 1 one-off in-app purchase. Sim2Go App asks for nothing beyond the download.

## The numbers

| Metric | Clockwork | Sim2Go App |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.4 (24 ratings)](https://appshunter.io/ios/app/clockwork-watch-app/id1612061033/reviews)** | — |
| Number of ratings | **24** | — |
| Positive reviews | 42.9% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | — |
| Update frequency | Every 3 weeks | — |
| Monetization | Free with in-app purchases | — |
| Size | 242 MB | 110 MB |
| Requires iOS | 16.4 | **12.0** |
| Devices | **iPhone** | — |
| Age rating | 4+ | 17+ |
| Developer | [Appfred AS](https://appshunter.io/developer/1612061035) | [Bzdm Technologies Ltd](https://appshunter.io/developer/1882939398) |

## 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 |


### Sim2Go App

[App page](https://appshunter.io/ios/app/sim2go-app/id6760164279)

**In-app purchases:** none


## Frequently asked questions

### Is Clockwork free?

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

### Is Sim2Go App free?

Sim2Go App is free to download, with no in-app purchases.

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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.*