# STS vs weCon

The clearest difference is update cadence: weCon at every 2 months against STS's every 5 months. STS's advantage is iOS requirement (12.2 vs 14.0). 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.

STS ships an update every 5 months, weCon every 2 months. Both last shipped on October 8, 2026.

## The numbers

| Metric | STS | weCon |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[5.0 (1 ratings)](https://appshunter.io/ios/app/sts-soft-starter-simulation/id1409663811/reviews)** | — |
| Number of ratings | **1** | — |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 2 months** |
| Monetization | Free | — |
| Size | 67 MB | 47 MB |
| Requires iOS | **12.2** | 14.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Siemens AG](https://appshunter.io/developer/394503271) | [Wenglor sensoric elektronische Geraete GmbH](https://appshunter.io/developer/1556442959) |

## What reviewers say

### STS

[App page](https://appshunter.io/ios/app/sts-soft-starter-simulation/id1409663811)

This utility helps users select the appropriate Siemens soft starter for their specific needs. It simulates applications based on various parameters and provides detailed reports, with direct links to product data.

**Highlights:** Soft starter application simulation, Input data for environment, motor, and load, Starting parameter configuration, Suggested soft starter selection, Simulation and component reports, Direct access to Siemens Industry Mall data

**In-app purchases:** none


### weCon

[App page](https://appshunter.io/ios/app/wecon/id1556451389)

**In-app purchases:** none


## Frequently asked questions

### Is STS free?

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

### Is weCon free?

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

### Do STS or weCon have ads?

Neither STS nor weCon shows ads.

### Which is updated more often, STS or weCon?

STS ships an update every 5 months, and weCon every 2 months. Most recently, STS was updated on October 8, 2026 and weCon on October 8, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*