Comparison

ViCare vs Klarstein

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

Head to head
About

ViCare

Control your home heating system remotely with this app. Adjust temperatures, set schedules, and monitor system status for comfort and energy savings. Receive alerts and manage basic functions from your smartphone.

Highlights
  • Remote heating system control
  • Set preferred room temperatures
  • Create daily heating schedules
  • Monitor system status
  • Energy cost savings
  • Holiday program settings
Features
Read full description

ViCare - the best way to connect to your Viessmann heating system. New possibilities to control your heating system via the internet offers the ViCare app. With the simple graphical user interface of ViCare, the operation of the heating system is very intuitive. Feel secure Warmth and reassurance in one ● In one view, get an instant check if everything is in order Save costs Set your preferred room temperature and save money when you’re away from home ● Simple, convenient operation of your heating system ● Store daily schedules and automatically save energy costs ● Set basic functions at the touch of a button on your smartphone Core functions (depending on heating system): ● Displaying the status of your heating ● Capability to set up the most important functions of your heating system ● Store your daily routine to automatically save energy costs ● View outside temperature history ● Shortcuts e.g.: I want hot water or I’m away ● Holiday program Please note: We publish the functions gradually! You can expect several small updates in the next weeks and months. There will be always something new to discover. Comments or feedback? Share your thoughts with us and other users in our Viessmann Community! https://www.viessmann-community.com/ ____________ Important: The ViCare app can be used in conjunction with an internet-compatible Viessmann heating system or in conjunction with the Viessmann Vitoconnect WLAN module or a Viessmann heating system with an integrated Internet interface. Functions available in ViCare are depending on functions available on boiler itself. ____________ Terms of use: https://climate-solutions.com/vicare/terms-of-use/US/en.html

About

Klarstein

Control and monitor your smart home devices remotely from anywhere in the world. Organize devices by room, track real-time temperature and humidity, and access guides to learn app features. Stay updated on sales and connect with customer support.

Highlights
  • Remote device control
  • Real-time monitoring
  • Room organization
  • Temperature and humidity tracking
  • In-app guides
  • Sales information
Features
Read full description

Connect smart Klarstein devices, control and monitor them remotely from everywhere in the world only through the Klarstein app. Key features at your disposal in Klarstein App: Connect your smart Klarstein devices in a couple of taps: • Control and monitor your smart Klarstein devices using this app from everywhere, either from your office or travelling around the world. All you need is internet access. • Depending on your smart device, seamlessly monitor the real-time temperature and humidity and set your desired parameter with only a few taps. • Create different rooms in your apartment, e.g. living room, bedrooms, etc, and specify in which room your smart device is located. In this way, you can keep track of temperature and humidity in different areas of your apartment. • Make a tour through the app with our guides! We make sure you know how to use the app and its different features. Stay tuned with us: • Find information about our upcoming sales. • Stay in touch with our customer support and let us know how you like our app. Some features may not be available for all products. We update the app regularly so you can get the most out of your products. Send us a message: appsupport@go-bbg.com • • • Klarstein stands for innovative Modern Living products designed in Berlin. Klarstein's broad product range includes strong household helpers of all kinds: from kitchen appliances to home appliances to climate control products, everything is available. Through exciting colours, innovative technology and unique styles, the products of Klarstein fit seamlessly into the individual living ambience and become indispensable companions in the everyday life of our customers. At Klarstein, the slogan "time for variety" is both a claim and a guiding principle, which runs like a red thread through the entire product portfolio.

Screenshots

ViCare4 screens
Klarstein4 screens

Verdict

The call

The clearest difference is in-app purchases: Klarstein at none against ViCare's 2. Klarstein also leads on review sentiment (52% vs 41%) and device support (4 vs 2). ViCare's advantage is ratings volume (1.3K vs 29) and update cadence (every 9 days vs monthly). On price and ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. ViCare sells 2 in-app purchases, starting at $3.99 per month. Klarstein asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

ViCare holds the better App Store score, 4.5 against 4.3. That said, the two scores are not equally well evidenced: ViCare has 1.3K ratings behind it against 29, so its average is the more settled of the two. Written reviews complicate that: 41% of ViCare's written reviews are positive against 52% of Klarstein's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

ViCare ships an update every 9 days, Klarstein monthly. Both last shipped on October 19, 2026.

Scorecard8 real differences · 2 level
ViCare versus Klarstein: the parameters behind the verdict, then further details
ParameterViCareKlarstein
PriceFreeFree
Rating4.5 (1.3K ratings) — better4.3 (29 ratings)
Positive reviews40.7% of reviews52.3% of reviews — better
Number of ratings1.3K — better29
Update frequencyEvery 9 days — betterMonthly
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPadiPhone, iPad, iPod, Apple Watch — better
Requires iOS16.013.0 — better
Further details — not scored
Size662 MB243 MB
Age rating4+4+
DeveloperViessmann IT Service GmbHChal-Tec GmbH

Customer experience

ViCare

All ratings1,287 ratings
Positive89.0%
Neutral4.0%
Negative7.0%
Written reviews755 reviews
Positive40.7%
Neutral11.8%
Negative47.5%

Klarstein

All ratings29 ratings
Positive82.8%
Neutral3.4%
Negative13.8%
Written reviews109 reviews
Positive52.3%
Neutral12.8%
Negative34.9%

User reviews

ViCare

From 1.3K App Store ratings

What we love

  • 🚀 Great app to control heating and hot water
  • 📊 Useful data and analytics on energy usage
  • 🌟 Intuitive and easy to use interface
  • ⏱️ Convenient remote access and control

Room to improve

  • 🐛 Frequent connection issues and app crashes
  • 🔌 Unreliable sync with boiler, settings not always applied
  • 🕰️ Limited scheduling and timer options
  • 🤔 Confusing and unintuitive user experience

Klarstein

From 29 App Store ratings

What we love

  • 👍 Easy setup and use
  • 📱 Remote control via app
  • 🗣️ Alexa and voice assistant integration
  • 💡 Scene and automation creation
  • 🏠 Home network integration

Room to improve

  • 🐛 Frequent bugs and glitches
  • 📉 Unreliable scheduling
  • ❌ App crashes and freezes
  • ⚠️ Random resets of settings
  • 🔌 Connection issues

Bugs and requests

ViCare

Reported bugs

4 issues
  • App fails to load or gets stuck on loading screen
  • Settings changes not syncing properly with boiler
  • Incorrect time zone and DST adjustments
  • Frequent loss of connectivity to boiler

Requested features

4 requests
  • Add a simple 'boost' or 'quick on' heating mode
  • Provide more granular control over heating and hot water schedules
  • Enable integration with smart home platforms like Alexa or HomeKit
  • Improve data visualization and historical energy usage tracking

Klarstein

Reported bugs

36 issues
  • App crashes after update
  • Schedules ignored or reset randomly
  • Devices turn on/off randomly
  • Temperature settings are random
  • App does not work after update
Show 31 more
  • Cannot log in
  • QR code scanning issues
  • Timers/countdown feature broken
  • Lost previous schedules after update
  • Cannot set timers for less than an hour
  • Previous schedule settings deleted after update
  • Cannot apply scheduled times for more than one day
  • App freezes or shows endless loading
  • Devices disappear from app after update
  • Cannot add devices back after update
  • UI text overlaps
  • Humidity display incorrect and setting changes result in incorrect values
  • Stecker-Reaktor not supported
  • App requires reinstallation to work
  • Login issues after update
  • Wi-Fi connection issues
  • Password change not possible
  • Ventilation speed adjustment missing in refresh mode
  • App loses connection to devices
  • Error when accessing link
  • Cannot reset password
  • App not supporting English
  • Incorrect time selection in scheduler
  • Device not in list
  • Air fryer not supported
  • Blank screens and half visible wording
  • Crashing all the time
  • Cannot connect to WiFi
  • UI improvements needed for schedule process
  • Auto mode disables manual schedule switching
  • New scheduler is unfriendly

Requested features

11 requests
  • Dark mode
  • Power consumption monitoring
  • Siri/HomeKit integration
  • Ability to select multiple devices for scenes
  • Remove sound on radiator
Show 6 more
  • Widgets for the app
  • Customizable presets
  • Ability to disable open window detection permanently
  • HomeKit or Matter update
  • Copy day option for schedules
  • More recipes for milk maker

In-app purchases

2 purchases

ViCare

Subscriptions2
  • Monthly1 Month trial$3.991 Month
  • Yearly1 Month trial$33.991 Year
None

Klarstein

No in-app purchases

Questions

Is ViCare free?
ViCare is free to download, with in-app purchases available.
Is Klarstein free?
Klarstein is free to download, with no in-app purchases.
Which has better reviews, ViCare or Klarstein?
ViCare is rated higher. ViCare averages 4.5 out of 5 from 1.3K ratings, while Klarstein averages 4.3 from 29 ratings.
Do ViCare or Klarstein have ads?
Neither ViCare nor Klarstein shows ads.
Which is updated more often, ViCare or Klarstein?
ViCare ships an update every 9 days, and Klarstein monthly. Most recently, ViCare was updated on October 19, 2026 and Klarstein on October 19, 2026.

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