# SolarECO vs UUSolar

SolarECO and UUSolar are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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

SolarECO ships an update every 5 weeks, UUSolar monthly. The most recent releases landed on October 8, 2026 and October 5, 2026 respectively.

## The numbers

| Metric | SolarECO | UUSolar |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Monthly** |
| Size | 56 MB | 47 MB |
| Requires iOS | 12.0 | 12.0 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 17+ | 17+ |
| Developer | [家豪 李](https://appshunter.io/developer/1738154766) | [泽炜 李](https://appshunter.io/developer/1774184312) |

## What reviewers say

### SolarECO

[App page](https://appshunter.io/ios/app/solareco/id6484594025)

**In-app purchases:** none


### UUSolar

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

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is SolarECO free?

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

### Is UUSolar free?

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

### Do SolarECO or UUSolar have ads?

Neither SolarECO nor UUSolar shows ads.

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

SolarECO ships an update every 5 weeks, and UUSolar monthly. Most recently, SolarECO was updated on October 8, 2026 and UUSolar on October 5, 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.*