ACIN VentiFlow vs HygroSoft
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ACIN VentiFlow
Read full descriptionHide full description
The VF-mk2 app from ACIN instruments receives measurement data from the ACIN VentiFlow-mk2 to your phone or tablet via Bluetooth®. The readings are recalculated for even greater accuracy. Based on the ventilation plan, the design requirements and other data, a template can be created with all rooms and valves. This template can be easily duplicated. You can then quickly measure and report, with the app helping you to balance a ventilation system. The data can be saved (CSV file) and sent from the app via an e-mail program or a messenger service. The app is partly free, the project module requires a key that can be requested from ACIN instruments (info@acin.nl) https://acin.nl
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
Read full descriptionHide full description
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: ACIN VentiFlow at every 2 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.
ACIN VentiFlow ships an update every 2 months, HygroSoft every 8 months. The most recent releases landed on October 27, 2026 and October 5, 2026 respectively.
| Parameter | ACIN VentiFlow | HygroSoft |
|---|---|---|
| Price | Free | Free |
| Rating | — | 1.0 (1 ratings) — better |
| Positive reviews | — | 0.0% of reviews |
| Number of ratings | — | 1 — better |
| Update frequency | Every 2 months — better | Every 8 months |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 13.0 — better | 14.2 |
| Further details — not scored | ||
| Size | 14 MB | 166 MB |
| Age rating | 4+ | 4+ |
| Developer | 7Lab | Rotronic AG |
In-app purchases
ACIN VentiFlow
No in-app purchases
HygroSoft
No in-app purchases
