Comparison

BITZER Smart Connect Pro vs Carel Controlla

Price, ratings, monetisation and update history for both apps, side by side โ€” with what reviewers say about each.

Head to head
About

BITZER Smart Connect Pro

Features
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BITZER Remote Caretaking is an intuitive service, which makes monitoring and adjusting heating, ventilation and refrigeration systems easy for you. BITZER Remote Caretaking gives an informative overview of how systems are running โ€“ even multiple systems at the same time. Within the app, detailed information, like temperatures, humidity levels and various compressor information can be monitored and displayed. With BITZER Remote Caretaking it is even possible to adjust systems remotely. It has never been easier to have full control of HVAC+R systems - anytime, anywhere! In case of system break downs, alarms, warnings and even for preventive maintenance purposes, BITZER Remote Caretaking will send email notifications to specified personnel for whom the information is relevant. This is easily set up for the specific product/system/setup in relation to registered users in BITZER Remote Caretaking. BITZER Remote Caretaking can be accessed anytime and anywhere via the app or via an internet browser.

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.

Screenshots

BITZER Smart Connect Pro4 screens
Carel Controlla4 screens

Verdict

The call

The clearest difference is update cadence: Carel Controlla at every 3 months against BITZER Smart Connect Pro's every 9 months. BITZER Smart Connect Pro's advantage is iOS requirement (11.0 vs 15.0). On price, ads, in-app purchases and device support 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

BITZER Smart Connect Pro ships an update every 9 months, Carel Controlla every 3 months. The most recent releases landed on October 26, 2026 and October 29, 2026 respectively.

Scorecard2 real differences ยท 4 level
BITZER Smart Connect Pro versus Carel Controlla: the parameters behind the verdict, then further details
ParameterBITZER Smart Connect ProCarel Controlla
PriceFreeFree
Update frequencyEvery 9 monthsEvery 3 months โ€” better
AdsNoNo
In-app purchasesNoNo
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS11.0 โ€” better15.0
Further details โ€” not scored
Size1 MB52 MB
Age rating9+4+
DeveloperBitzer Electronics A/SCAREL INDUSTRIES S.p.A.

In-app purchases

None

BITZER Smart Connect Pro

No in-app purchases

None

Carel Controlla

No in-app purchases

Questions

Is BITZER Smart Connect Pro free?
BITZER Smart Connect Pro is free to download, with no in-app purchases.
Is Carel Controlla free?
Carel Controlla is free to download, with no in-app purchases.
Do BITZER Smart Connect Pro or Carel Controlla have ads?
Neither BITZER Smart Connect Pro nor Carel Controlla shows ads.
Which is updated more often, BITZER Smart Connect Pro or Carel Controlla?
BITZER Smart Connect Pro ships an update every 9 months, and Carel Controlla every 3 months. Most recently, BITZER Smart Connect Pro was updated on October 26, 2026 and Carel Controlla on October 29, 2026.

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