Viessmann Access vs NTI net
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.
NTI net
Control your home's heating system remotely for enhanced comfort and energy savings. Receive system failure notifications and opt for 24/7 professional assistance with an optional Pro subscription.
- Remote boiler and heat pump control
- Temperature adjustment
- Energy saving optimization
- System failure notifications
- 24/7 technical assistance (Pro)
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Home gets smarter, Life gets simpler with NTI net! Wouldn’t it be nice to set the perfect home temperature with a simple tap, whenever and wherever you are? With NTI net you can control your boiler, heat pump or hybrid solution more easily and conveniently via app, achieving superior levels of comfort and serenity within your home. The app will also be your energy consultant, allowing you to maximize your savings and contribute to building a sustainable future for everyone. In case of system failure, you will promptly be notified so that you can immediately ask for support. In addition, by activating NTI net Pro, you will receive 24/7 assistance from your NTI Technical Assistance Center, which will be able to monitor the product and find a solution for any issue, even remotely! NTI net, ideal comfort with a simple touch!
Screenshots
Verdict
The clearest difference is update cadence: NTI net at monthly against Viessmann Access's every 4 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.
Viessmann Access ships an update every 4 months, NTI net monthly. The most recent releases landed on October 11, 2026 and October 21, 2026 respectively.
| Parameter | Viessmann Access | NTI net |
|---|---|---|
| Price | Free | Free |
| Rating | — | 4.5 (79 ratings) — better |
| Positive reviews | — | 20.0% of reviews |
| Number of ratings | — | 79 — better |
| Update frequency | Every 4 months | Monthly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | — | Free with in-app purchases |
| Devices | iPhone, iPod | iPhone, iPod |
| Requires iOS | 12 — better | 13.0 |
| Further details — not scored | ||
| Size | 52 MB | 111 MB |
| Age rating | 4+ | 4+ |
| Developer | Viessmann IT Service GmbH | Ariston SpA |
In-app purchases
Viessmann Access
No in-app purchases
NTI net
No in-app purchases









