# STS vs GlassTrack

The clearest difference is update cadence: GlassTrack at monthly against STS's every 5 months. STS's advantage is iOS requirement (12.2 vs 16.0). 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, GlassTrack monthly. The most recent releases landed on June 29, 2026 and September 17, 2026 respectively.

## The numbers

| Metric | STS | GlassTrack |
| --- | --- | --- |
| 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 | **Monthly** |
| Monetization | Free | — |
| Size | 67 MB | 56 MB |
| Requires iOS | **12.2** | 16.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [Siemens AG](https://appshunter.io/developer/394503271) | [HeronTrack](https://appshunter.io/developer/1462166685) |

## 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


### GlassTrack

[App page](https://appshunter.io/ios/app/glasstrack/id1553246626)

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

**In-app purchases:** none


## Frequently asked questions

### Is STS free?

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

### Is GlassTrack free?

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

### Do STS or GlassTrack have ads?

Neither STS nor GlassTrack shows ads.

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

STS ships an update every 5 months, and GlassTrack monthly. Most recently, STS was updated on June 29, 2026 and GlassTrack on September 17, 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.*