# Solar Cloud vs GSL Smart ESS

The clearest difference is update cadence: Solar Cloud at every 4 weeks against GSL Smart ESS's every 19 months. Solar Cloud also leads on iOS requirement (13.3 vs 15.6). 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.

Solar Cloud ships an update every 4 weeks, GSL Smart ESS every 19 months. The most recent releases landed on June 11, 2026 and September 9, 2026 respectively.

## The numbers

| Metric | Solar Cloud | GSL Smart ESS |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 19 months |
| Size | 116 MB | 39 MB |
| Requires iOS | **13.3** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Shenzhen Sofarsolar Company Limited](https://appshunter.io/developer/1628036876) | [永敬 邓](https://appshunter.io/developer/1542289672) |

## What reviewers say

### Solar Cloud

[App page](https://appshunter.io/ios/app/solar-cloud/id1673684191)

**Features:** macOS Compatibility

**In-app purchases:** none


### GSL Smart ESS

[App page](https://appshunter.io/ios/app/gsl-smart-ess/id6504597237)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Solar Cloud free?

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

### Is GSL Smart ESS free?

GSL Smart ESS is free to download, with no in-app purchases.

### Do Solar Cloud or GSL Smart ESS have ads?

Neither Solar Cloud nor GSL Smart ESS shows ads.

### Which is updated more often, Solar Cloud or GSL Smart ESS?

Solar Cloud ships an update every 4 weeks, and GSL Smart ESS every 19 months. Most recently, Solar Cloud was updated on June 11, 2026 and GSL Smart ESS on September 9, 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.*