Viessmann Access vs iEMOS
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Viessmann Access
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Viessmann Access app - The secured and simple solution for passwordless authentication to Viessmann web applications. Viessmann Access is the app for strong authentication to Viessmann web applications without entering a password or second factor. After setting up and registering your account, you receive a push notification when you log in, which is released by you using your secure PIN or, depending on the device, biometric security features such as facial recognition or fingerprint. And you are already logged in.
iEMOS
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The 'Swiss Knife' for internal Participants of Events and Exhibitions. Check In and Out at the Booth, search for and communicate with Colleagues. Get Access to interesting Documents and Links related to your Event in Realtime. Manage your Appointments and order Food and Drinks in the Catering Areas of the Booth.
Screenshots
Verdict
The clearest difference is update cadence: iEMOS at monthly against Viessmann Access's every 4 months. Viessmann Access's advantage is iOS requirement (12 vs 15.0). 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.
Viessmann Access ships an update every 4 months, iEMOS monthly. The most recent releases landed on August 12, 2026 and September 13, 2026 respectively.
| Parameter | Viessmann Access | iEMOS |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 4 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPod | iPhone, iPad, iPod — better |
| Requires iOS | 12 — better | 15.0 |
| Further details — not scored | ||
| Size | 52 MB | 51 MB |
| Age rating | 4+ | 4+ |
| Developer | Viessmann IT Service GmbH | KOMDAT GmbH |
In-app purchases
Viessmann Access
No in-app purchases
iEMOS
No in-app purchases
Questions
Is Viessmann Access free?
Is iEMOS free?
Do Viessmann Access or iEMOS have ads?
Which is updated more often, Viessmann Access or iEMOS?
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