# STS vs HexBlue_FLT

STS and HexBlue_FLT are too close to call on the numbers: across 6 compared parameters — price, update cadence, ads and in-app purchases among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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, HexBlue_FLT every 7 months. The most recent releases landed on October 25, 2026 and October 4, 2026 respectively.

## The numbers

| Metric | STS | HexBlue_FLT |
| --- | --- | --- |
| 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 7 months |
| Monetization | Free | — |
| Size | 67 MB | 49 MB |
| Requires iOS | **12.2** | 13.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Siemens AG](https://appshunter.io/developer/394503271) | [Hexing Zeko Information Technology Co., Ltd](https://appshunter.io/developer/1531683944) |

## 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


### HexBlue_FLT

[App page](https://appshunter.io/ios/app/hexblue-flt/id6757453714)

**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 HexBlue_FLT free?

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

### Do STS or HexBlue_FLT have ads?

Neither STS nor HexBlue_FLT shows ads.

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

STS ships an update every 5 months, and HexBlue_FLT every 7 months. Most recently, STS was updated on October 25, 2026 and HexBlue_FLT on October 4, 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.*