# CoderWatch vs JiaClock

The clearest difference is in-app purchases: CoderWatch at none against JiaClock's 3. JiaClock's advantage is ads (none vs shown). On price, update cadence, device support and iOS requirement there is nothing between them.

Both are free to download. JiaClock sells 3 in-app purchases, starting at $0.99 per month. CoderWatch asks for nothing beyond the download.

CoderWatch ships an update weekly, JiaClock every 4 days. The most recent releases landed on October 10, 2026 and October 1, 2026 respectively.

## The numbers

| Metric | CoderWatch | JiaClock |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | Yes | **No** |
| Update frequency | Weekly | **Every 4 days** |
| Size | 6 MB | 30 MB |
| Requires iOS | **16.4** | 17.0 |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Tomoaki Yagishita](https://appshunter.io/developer/387622096) | [Beijing Boshujia Technology Co., Ltd](https://appshunter.io/developer/1666207574) |

## What reviewers say

### CoderWatch

[App page](https://appshunter.io/ios/app/coderwatch/id6450360779)

**In-app purchases:** none


### JiaClock

[App page](https://appshunter.io/ios/app/jiaclock/id6776895229)

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

**In-app purchases (3)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Xiaojia Clock Pro Monthly | $0.99 | per month |
| Xiaojia Clock Pro Yearly | $0.99 | per year |
| Xiaojia Clock Pro Lifetime | $1.99 | one-time |


## Frequently asked questions

### Is CoderWatch free?

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

### Is JiaClock free?

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

### Do CoderWatch or JiaClock have ads?

CoderWatch shows ads; JiaClock does not.

### Which is updated more often, CoderWatch or JiaClock?

CoderWatch ships an update weekly, and JiaClock every 4 days. Most recently, CoderWatch was updated on October 10, 2026 and JiaClock on October 1, 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.*