Sauermann Control vs HygroSoft
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Sauermann Control
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This free app is designed to be used with Sauermann Class 320 transmitters (Si-C320 and Si-CPE320) in all their available versions. Features list: - Quick and easy wireless connection with transmitters* - Access to all parameters and options of the transmitters and their probes - Real-time measurement display - Configuration of the measurement channels - Configuration of analogue and digital outputs - Setting of alarm thresholds - Security locks management - Complete configuration of each probe - Autozero scheduling - One-click firmware updates *iOS 12.4 and later – BLE 4.0 capable devices First final version of the application supporting Sauermann Class 320 transmitters launched in 2023.
HygroSoft
This utility app allows for easy configuration, adjustment, and updates of new Rotronic devices using your smartphone's NFC interface. It supports device setup even without a power supply.
- NFC interface for device interaction
- Easy configuration of Rotronic devices
- Adjustment and updates via smartphone
- Supports devices without power supply
- Compatible with HygroFlex series
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Overview Rotronic’s new software generation, HygroSoft, replaces the long-standing and successful HW4 and HW5 software. HygroSoft is available as a free application for iOS. The HygroSoft App is utilizing the NFC interface, allowing for easy configuration, adjustment, and updates of the new Rotronic device generation via smartphone. The NFC interface even supports device configuration without any power supply. Supported Devices • HygroFlex 5 Advanced (HF5A) Series • HygroFlex 3 Advanced (HF3A) Series • HygroFlex 5 Advanced Temperatur (TF5A) Series Further Information For more information, please visit our website at ProcessSensing.com or consult our Online Manual at service.rotronic.com/products-manual.
Screenshots
Verdict
The clearest difference is update cadence: Sauermann Control at every 3 months against HygroSoft's every 8 months. On price, ads, in-app purchases and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Sauermann Control ships an update every 3 months, HygroSoft every 8 months. The most recent releases landed on October 30, 2026 and October 5, 2026 respectively.
| Parameter | Sauermann Control | HygroSoft |
|---|---|---|
| Price | Free | Free |
| Rating | — | 1.0 (1 ratings) — better |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 3 months — better | Every 8 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 14.0 — better | 14.2 |
| Further details — not scored | ||
| Size | 18 MB | 166 MB |
| Age rating | 4+ | 4+ |
| Developer | SAUERMANN INDUSTRIE | Rotronic AG |
In-app purchases
Sauermann Control
No in-app purchases
HygroSoft
No in-app purchases
Questions
Is Sauermann Control free?
Is HygroSoft free?
Do Sauermann Control or HygroSoft have ads?
Which is updated more often, Sauermann Control or HygroSoft?
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