ViCare vs Symphony by GeoStar
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
ViCare
Remotely manage your home heating system with an intuitive interface. Monitor system status, adjust temperatures, and set schedules to save energy and ensure comfort. Offers convenient shortcuts for common actions like hot water requests or vacation mode.
- Remote heating system control
- Temperature adjustment
- Daily scheduling for energy saving
- System status monitoring
- Hot water and away shortcuts
- Holiday program settings
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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
Symphony by GeoStar
Control and monitor your geothermal comfort system remotely. View real-time system feedback, track energy usage, and receive alerts for maintenance. Access your entire geothermal system, not just the thermostat, from any internet-connected device.
- Remote system monitoring
- Real-time feedback
- Temperature and program control
- Energy usage tracking
- Equipment alerts and reminders
- Cloud-based access
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Symphony is a WiFi enabled comfort platform that’s unsurpassed in its ease of use, features and capabilities. It provides detailed system feedback in real-time and the tools to control it. Symphony marries the Aurora controls of your Geostar geothermal unit with the Aurora Weblink router, providing access to your equipment from practically anywhere. Symphony is cloud-based so there’s no software to install and provides control over your entire geothermal system - not just the thermostat as in other ‘smart thermostat’ systems. Symphony allows you to: • View and control your geothermal system’s operation from anywhere using a laptop, smart phone or tablet using an intuitive dashboard for quick access to your unit’s status, operation history, alert history, and energy usage. • Remotely control temperatures and programs for up to 6 zones (requires the IntelliZone2 zoning system). • Observe and track your unit’s energy use for the last 13 months. • Provide equipment performance data to dealers for remote monitoring and diagnosis. • Receive equipment alerts and service reminders (as well as your dealer) via email and texts.
Screenshots
Verdict
The clearest difference is rating: ViCare at 4.5 against Symphony by GeoStar's 2.0. ViCare also leads on review sentiment (41% vs 0%) and update cadence (every 9 days vs every 4 months). Symphony by GeoStar's advantage is in-app purchases (none vs 2). On price, ads, device support and iOS requirement 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. ViCare sells 2 in-app purchases, starting at $3.99 per month. Symphony by GeoStar asks for nothing beyond the download.
ViCare holds the better App Store score, 4.5 against 2.0. That said, the two scores are not equally well evidenced: ViCare has 1.3K ratings behind it against 4, so its average is the more settled of the two. Written reviews point the same way: 41% of ViCare's written reviews are positive against 0% of Symphony by GeoStar's.
ViCare ships an update every 9 days, Symphony by GeoStar every 4 months. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.
| Parameter | ViCare | Symphony by GeoStar |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (1.3K ratings) — better | 2.0 (4 ratings) |
| Positive reviews | 40.7% of reviews — better | 0.0% of reviews |
| Number of ratings | 1.3K — better | 4 |
| Update frequency | Every 9 days — better | Every 4 months |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPad | iPhone, iPad, iPod — better |
| Requires iOS | 16.0 | 15.0 — better |
| Further details — not scored | ||
| Size | 727 MB | 17 MB |
| Age rating | 4+ | 4+ |
| Developer | Viessmann IT Service GmbH | WaterFurnace International |
Customer experience
ViCare
Symphony by GeoStar
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
Symphony by GeoStar
Not enough reviews yet to summarise bugs or requests.
In-app purchases
ViCare
- Monthly1 Month trial$3.991 Month
- Yearly1 Month trial$33.991 Year
Symphony by GeoStar
No in-app purchases







