rotronic vs ACIN VentiFlow
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
rotronic
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A comprehensive portfolio that includes handheld instruments, measurement transmitters, industrial sensors, OEM products and data loggers. Rotronic measuring devices do service in the most varied areas of application: the pharmaceutical/foodstuff industries, ventilation/air-conditioning equipment, drying processes and measurement of moisture in paper, as well as in meteorology. From us, you buy guaranteed safety: validated software, and an officially accredited, GAMP/FDA conform calibration centre, and profit from a global sales and service network.
ACIN VentiFlow
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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
Screenshots
Verdict
The clearest difference is update cadence: rotronic at monthly against ACIN VentiFlow's every 2 months. rotronic also leads on iOS requirement (8.1 vs 13.0). 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.
rotronic ships an update monthly, ACIN VentiFlow every 2 months. The most recent releases landed on October 26, 2026 and October 27, 2026 respectively.
| Parameter | rotronic | ACIN VentiFlow |
|---|---|---|
| Price | Free | Free |
| Update frequency | Monthly — better | Every 2 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 8.1 — better | 13.0 |
| Further details — not scored | ||
| Size | 5 MB | 14 MB |
| Age rating | 4+ | 4+ |
| Developer | Rotronic AG | 7Lab |
In-app purchases
rotronic
No in-app purchases
ACIN VentiFlow
No in-app purchases









