# S vs SolarCalc

The clearest difference is update cadence: SolarCalc at every 2 days against S's every 5 weeks. S's advantage is iOS requirement (13.0 vs 15.0). 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.

S ships an update every 5 weeks, SolarCalc every 2 days. The most recent releases landed on October 6, 2026 and October 19, 2026 respectively.

## The numbers

| Metric | S | SolarCalc |
| --- | --- | --- |
| Price | Free | Free |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 weeks | **Every 2 days** |
| Size | 80 MB | 31 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 17+ | 4+ |
| Developer | [Shenzhen Scodeno Technology Co., Ltd.](https://appshunter.io/developer/1779436922) | [Mustafa CALISKANOZTURK](https://appshunter.io/developer/6791932527) |

## What reviewers say

### S

[App page](https://appshunter.io/ios/app/s-cloud/id6738114270)

**Features:** macOS Compatibility

**In-app purchases:** none


### SolarCalc

[App page](https://appshunter.io/ios/app/solarcalc-pv-panel-and-battery/id6797648664)

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

**In-app purchases:** none


## Frequently asked questions

### Is S free?

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

### Is SolarCalc free?

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

### Do S or SolarCalc have ads?

Neither S nor SolarCalc shows ads.

### Which is updated more often, S or SolarCalc?

S ships an update every 5 weeks, and SolarCalc every 2 days. Most recently, S was updated on October 6, 2026 and SolarCalc on October 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.*