Comparison

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.

Head to head
About

Carel Controlla

Features
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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.

About

BITZER Smart Connect

Features
Read full description

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

Carel Controlla4 screens
BITZER Smart Connect4 screens

Verdict

The call

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

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

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.

Scorecard1 real difference ยท 5 level
Carel Controlla versus BITZER Smart Connect: the parameters behind the verdict, then further details
ParameterCarel ControllaBITZER Smart Connect
PriceFreeFree
Update frequencyEvery 3 months โ€” betterEvery 4 months
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.013.0 โ€” better
Further details โ€” not scored
Size52 MB191 MB
Age rating4+4+
DeveloperCAREL INDUSTRIES S.p.A.Bitzer Electronics A/S

In-app purchases

None

Carel Controlla

No in-app purchases

None

BITZER Smart Connect

No in-app purchases

Questions

Is Carel Controlla free?
Carel Controlla is free to download, with no in-app purchases.
Is BITZER Smart Connect free?
BITZER Smart Connect is free to download, with no in-app purchases.
Do Carel Controlla or BITZER Smart Connect have ads?
Neither Carel Controlla nor BITZER Smart Connect shows ads.
Which is updated more often, Carel Controlla or BITZER Smart Connect?
Carel Controlla ships an update every 3 months, and BITZER Smart Connect every 4 months. Most recently, Carel Controlla was updated on September 21, 2026 and BITZER Smart Connect on September 10, 2026.

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