# UUSolar vs Urayzero

The clearest difference is update cadence: UUSolar at monthly against Urayzero's every 9 months. On price, ads, in-app purchases and device support there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UUSolar ships an update monthly, Urayzero every 9 months. The most recent releases landed on September 17, 2026 and September 7, 2026 respectively.

## The numbers

| Metric | UUSolar | Urayzero |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Monthly** | Every 9 months |
| Size | 47 MB | 90 MB |
| Requires iOS | **12.0** | 13.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 17+ |
| Developer | [泽炜 李](https://appshunter.io/developer/1774184312) | [Shenzhen Energy Control Cloud Technology Co., Ltd](https://appshunter.io/developer/1765046101) |

## What reviewers say

### UUSolar

[App page](https://appshunter.io/ios/app/uusolar/id6737028315)

**Features:** macOS Compatibility

**In-app purchases:** none


### Urayzero

[App page](https://appshunter.io/ios/app/urayzero/id6748371622)

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

**In-app purchases:** none


## Frequently asked questions

### Is UUSolar free?

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

### Is Urayzero free?

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

### Do UUSolar or Urayzero have ads?

Neither UUSolar nor Urayzero shows ads.

### Which is updated more often, UUSolar or Urayzero?

UUSolar ships an update monthly, and Urayzero every 9 months. Most recently, UUSolar was updated on September 17, 2026 and Urayzero on September 7, 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.*