# JINOU UVMeter vs Sol Clock

The clearest difference is in-app purchases: JINOU UVMeter at none against Sol Clock's 2. JINOU UVMeter also leads on iOS requirement (10.2 vs 26.0). Sol Clock's advantage is update cadence (every 4 days vs every 2 months). On price, ads and device support there is nothing between them.

Both are free to download. Sol Clock sells 2 in-app purchases, starting at $0.99 per month. JINOU UVMeter asks for nothing beyond the download.

JINOU UVMeter ships an update every 2 months, Sol Clock every 4 days. The most recent releases landed on October 3, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | JINOU UVMeter | Sol Clock |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 4 days** |
| Size | 1 MB | 8 MB |
| Requires iOS | **10.2** | 26.0 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Chongqing Jin'Ou Technology Development Co., Ltd.](https://appshunter.io/developer/1715258511) | [Mark Zigadlo](https://appshunter.io/developer/1879779038) |

## What reviewers say

### JINOU UVMeter

[App page](https://appshunter.io/ios/app/jinou-uvmeter/id1176842920)

**Features:** macOS Compatibility

**In-app purchases:** none


### Sol Clock

[App page](https://appshunter.io/ios/app/sol-clock/id6770347619)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Pro Monthly | $0.99 | per month |
| Pro Annual | $7.99 | per year |


## Frequently asked questions

### Is JINOU UVMeter free?

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

### Is Sol Clock free?

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

### Do JINOU UVMeter or Sol Clock have ads?

Neither JINOU UVMeter nor Sol Clock shows ads.

### Which is updated more often, JINOU UVMeter or Sol Clock?

JINOU UVMeter ships an update every 2 months, and Sol Clock every 4 days. Most recently, JINOU UVMeter was updated on October 3, 2026 and Sol Clock on September 30, 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.*