# Solar Cloud vs Su

The clearest difference is update cadence: Solar Cloud at every 4 weeks against Su's every 6 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, Su every 6 months. The most recent releases landed on June 11, 2026 and September 19, 2026 respectively.

## The numbers

| Metric | Solar Cloud | Su |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 0.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 4 weeks** | Every 6 months |
| Monetization | — | Free |
| Size | 116 MB | 50 MB |
| Requires iOS | **13.3** | 15.6 |
| Devices | iPhone, iPod | iPhone, iPod |
| Age rating | 4+ | 17+ |
| Developer | [Shenzhen Sofarsolar Company Limited](https://appshunter.io/developer/1628036876) | [SU-VASTIKA SYSTEMS PRIVATE LIMITED](https://appshunter.io/developer/1523208936) |

## What reviewers say

### Solar Cloud

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

**Features:** macOS Compatibility

**In-app purchases:** none


### Su

[App page](https://appshunter.io/ios/app/su-vastika-ess/id6449174793)

Monitor and control your home energy storage system. View real-time grid voltage, battery status, and load usage. Protect your home from voltage fluctuations and manage power consumption remotely.

**Highlights:** Real-time grid voltage monitoring, Low and high voltage protection, Battery mode switching, Load percentage and usage display, Overload visual and audio alarms, Remote load on/off control, Battery reserve mode setting

**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 Su free?

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

### Do Solar Cloud or Su have ads?

Neither Solar Cloud nor Su shows ads.

### Which is updated more often, Solar Cloud or Su?

Solar Cloud ships an update every 4 weeks, and Su every 6 months. Most recently, Solar Cloud was updated on June 11, 2026 and Su on September 19, 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.*