# WCS vs E1NS

The clearest difference is update cadence: WCS at every 3 weeks against E1NS's every 2 months. WCS also leads on iOS requirement (11.0 vs 16.4). 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.

WCS ships an update every 3 weeks, E1NS every 2 months. The most recent releases landed on October 4, 2026 and October 12, 2026 respectively.

## The numbers

| Metric | WCS | E1NS |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 50.0% of reviews | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | **Every 3 weeks** | Every 2 months |
| Monetization | Free | — |
| Size | 19 MB | 49 MB |
| Requires iOS | **11.0** | 16.4 |
| Devices | iPhone, iPod | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Florian Vels](https://appshunter.io/developer/1398124957) | [E1NFACH](https://appshunter.io/developer/1755592019) |

## What reviewers say

### WCS

[App page](https://appshunter.io/ios/app/wcs-mobile-technik/id1398124958)

Manage and monitor your solar power system directly from your smartphone. View real-time data for solar panels, batteries, and loads, and adjust controller settings. Track daily system performance and control load terminals remotely.

**Highlights:** Monitor solar panel voltage, current, and watts, Monitor battery voltage, temperature, and charging amperage, Control controller's load terminal on/off, Monitor load voltage, current, and wattage, Adjust charge controller charging parameters, Set timer on load terminals, Record daily system data

**Features:** macOS Compatibility

**In-app purchases:** none


### E1NS

[App page](https://appshunter.io/ios/app/e1ns/id6511246517)

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

**In-app purchases:** none


## Frequently asked questions

### Is WCS free?

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

### Is E1NS free?

E1NS is free to download, with no in-app purchases.

### Do WCS or E1NS have ads?

Neither WCS nor E1NS shows ads.

### Which is updated more often, WCS or E1NS?

WCS ships an update every 3 weeks, and E1NS every 2 months. Most recently, WCS was updated on October 4, 2026 and E1NS on October 12, 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.*