Carel Controlla vs BITZER Smart Connect
Price, ratings, monetisation and update history for both apps, side by side โ with what reviewers say about each.
Carel Controlla
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CONTROLLA is the CAREL app designed specifically for end users, for controlling units equipped with CAREL controllers, either via the Cloud portal or a dedicated wireless gateway. The main features are: - Intuitive interaction with the unit, thanks to a customisable user interface in the desired language - Same user experience for both types of connection, via the Cloud to ensure the unit is under control even when away from home or the site, or via a local connection. - Compatibility with new generation parametric and programmable controllers.
BITZER Smart Connect
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BITZER Smart Connect makes it possible for you to get an easy and intuitive control of your heat pump and air handling units. Google Home, and the voice controlling function, makes it simple to adjust the unit after your personal demands and to always secure your buildings the best possible indoor climate. Use the BITZER Smart Connect app to onboard your BITZER Electronics HMI350TW display and BITZER Electronics controller to the cloud. After that you have the possibility to login via Google Home and add our unit to your Google Home account. With this app, there is no need for additionally cable installations. You can simply stand next to your display and activate your product to the cloud. With three simple onboarding steps, you are ready to start: -Select your BITZER Electronics product -Connect it to your Wi-Fi network -Give your BITZER Electronics product a name We then create your product in the cloud, and you are now ready to add your product to your Google Home account. Enjoy!
Screenshots
Verdict
The clearest difference is iOS requirement: BITZER Smart Connect at 13.0 against Carel Controlla's 15.0. On price, update cadence, ads and in-app purchases there is nothing between them.
Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS
Both are free to download. Neither carries in-app purchases, so what you see is what you pay.
Carel Controlla ships an update every 3 months, BITZER Smart Connect every 4 months. The most recent releases landed on September 21, 2026 and September 10, 2026 respectively.
| Parameter | Carel Controlla | BITZER Smart Connect |
|---|---|---|
| Price | Free | Free |
| Update frequency | Every 3 months โ better | Every 4 months |
| Ads | No | No |
| In-app purchases | No | No |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 13.0 โ better |
| Further details โ not scored | ||
| Size | 52 MB | 191 MB |
| Age rating | 4+ | 4+ |
| Developer | CAREL INDUSTRIES S.p.A. | Bitzer Electronics A/S |
In-app purchases
Carel Controlla
No in-app purchases
BITZER Smart Connect
No in-app purchases
Questions
Is Carel Controlla free?
Is BITZER Smart Connect free?
Do Carel Controlla or BITZER Smart Connect have ads?
Which is updated more often, Carel Controlla or BITZER Smart Connect?
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