# Ersa TRACE vs Sorotec App

The clearest difference is update cadence: Sorotec App at every 3 weeks against Ersa TRACE's every 5 months. Sorotec App also leads on review sentiment (100% vs 75%). Ersa TRACE's advantage is iOS requirement (12.0 vs 15.0). On price, ads, in-app purchases and monetization model there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

Ersa TRACE ships an update every 5 months, Sorotec App every 3 weeks. Both last shipped on October 2, 2026.

## The numbers

| Metric | Ersa TRACE | Sorotec App |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | 75.0% of reviews | **100.0% of reviews** |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 5 months | **Every 3 weeks** |
| Monetization | Free | Free |
| Size | 38 MB | 5 MB |
| Requires iOS | **12.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Ersa GmbH](https://appshunter.io/developer/1484598243) | [Sorotec GmbH](https://appshunter.io/developer/1668188282) |

## What reviewers say

### Ersa TRACE

[App page](https://appshunter.io/ios/app/ersa-trace/id1552856743)

This app enables smart operation of an IoT soldering station via smartphone or web application. It provides real-time temperature display, parameter control for single or multiple stations, and extensive traceability functions.

**Highlights:** Real-time temperature display, Target temperature setting, Soldering parameter control, Multi-station management, Web application integration, Traceability functions

**In-app purchases:** none


### Sorotec App

[App page](https://appshunter.io/ios/app/sorotec-app/id1668188280)

This app provides CNC milling machine users with tools for selecting and correctly setting milling cutters. It aims to prevent setting errors and answer common questions simply, streamlining the user's workflow.

**Highlights:** Milling cutter selection tools, Correct setting guidance, Error prevention for settings, Answers common CNC questions, Streamlines work processes

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

**In-app purchases:** none


## Frequently asked questions

### Is Ersa TRACE free?

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

### Is Sorotec App free?

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

### Do Ersa TRACE or Sorotec App have ads?

Neither Ersa TRACE nor Sorotec App shows ads.

### Which is updated more often, Ersa TRACE or Sorotec App?

Ersa TRACE ships an update every 5 months, and Sorotec App every 3 weeks. Most recently, Ersa TRACE was updated on October 2, 2026 and Sorotec App on October 2, 2026.

---

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