Symphony by WaterFurnace vs Control4
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Symphony by WaterFurnace
Control your geothermal heating and cooling system remotely with this WiFi-enabled platform. Monitor system performance, adjust temperatures across multiple zones, and track energy usage from any device. Receive alerts and service reminders for proactive maintenance.
- Remote system control
- Real-time system feedback
- Multi-zone temperature 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 WaterFurnace 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 (Premium package required). • Receive equipment alerts and service reminders (as well as your dealer) via email and texts (Premium package required).
Control4
Manage your smart home devices like lighting, music, and security from a single, intuitive interface. Customize your home screen and create automated routines for seamless control. Integrates with Apple HomeKit for Siri voice commands.
- All-in-one home screen control
- Customizable favorites and widgets
- Automated routines and scenes
- Multiroom entertainment management
- Live camera views and security alerts
- Apple HomeKit and Siri integration
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Easily manage your smart home with a sleek, intuitive interface. Control lighting, shades, music, security, and more—all from one place. Customize your home screen and create personalized routines for quick, seamless access. Now with enhanced features, including Siri voice control through Apple HomeKit. Contact a Control4 integrator to experience Control4 X4 today. NOTE: Prior to using this app, your Control4 system must be updated to Control4 X4 or later. If you are unsure of the software version of our system, check with your Control4 Integrator or log into your Control4 account at control4.com. A Smarter, More Personalized Experience • All-in-One Home Screen – Your central hub for controlling your favorite devices. Manage lighting, motorized shades, music, video, thermostats, security, cameras, door locks, garage doors, and more. See real-time status updates, access favorite devices, and control everything with ease. • Customizable Favorites – Pin the devices and controls you use most for instant access. • Quick Actions & Widgets – Resize, reorder, and organize widgets for seamless control over lighting, security cameras, and more. Personalized to You • Routines & Scenes – Save time by automating your day with pre-set routines for the morning, evening, or any moment in between. • Timers & Schedules – Set outdoor lights to turn on at sunset, TVs to turn off at bedtime, or security to arm at a set time. • Multiroom Entertainment – Control music and video in every room from one app. Play your favorite streaming services or set TVs to turn on when you walk in. Easy Control, Inside and Out • Live Camera Views – Monitor security cameras in real time and receive instant alerts. • Apple HomeKit Integration – Control your space with Siri, Apple Widgets, and CarPlay.* apple store only • Smart Notifications – Stay informed with alerts for doorbell rings, motion sensors, or security events. With the Control4 App, your space works the way you want it to — simplifying your life with effortless control. Download today and experience personalized automation like never before! *HomeKit, Siri, CarPlay are trademarks of Apple Inc., registered in the U.S. and other countries and regions.
Screenshots
Verdict
The clearest difference is rating: Control4 at 3.5 against Symphony by WaterFurnace's 2.2. Control4 also leads on update cadence (fortnightly vs every 3 months) and review sentiment (38% vs 16%). Symphony by WaterFurnace's advantage is iOS requirement (15.0 vs 18.0). On price, ratings volume, ads and in-app purchases 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. Neither carries in-app purchases, so what you see is what you pay.
Control4 holds the better App Store score, 3.5 against 2.2. Both are backed by a comparable volume of ratings — 64 and 74 respectively. Written reviews point the same way: 16% of Symphony by WaterFurnace's written reviews are positive against 38% of Control4's.
Symphony by WaterFurnace ships an update every 3 months, Control4 fortnightly. Both last shipped on October 24, 2026.
| Parameter | Symphony by WaterFurnace | Control4 |
|---|---|---|
| Price | Free | Free |
| Rating | 2.2 (64 ratings) | 3.5 (74 ratings) — better |
| Positive reviews | 16.3% of reviews | 38.2% of reviews — better |
| Number of ratings | 64 | 74 — better |
| Update frequency | Every 3 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Apple Watch |
| Requires iOS | 15.0 — better | 18.0 |
| Further details — not scored | ||
| Size | 18 MB | 253 MB |
| Age rating | 4+ | 4+ |
| Developer | WaterFurnace International | Snap One, LLC |
Customer experience
Symphony by WaterFurnace
Control4
Bugs and requests
Symphony by WaterFurnace
Reported bugs
25 issues- Cannot log in
- App crashes when attempting to set a schedule
- Struggles to connect reliably
- App crashes on new iOS versions (e.g., iOS 18)
- App will not load after iOS upgrade
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- Temperature setting reverts after changing
- Setting does not stay set and will switch while viewing
- App does not indicate which zones are open or calling for heat/cool
- Bottom half of the app is off-screen and inaccessible
- Constantly asking to log in
- Energy graph shows data error
- Historical data missing (0 days history)
- Graphs not showing up
- Temperature adjustment errors (lowering when trying to increase, or vice versa)
- App doesn't seem to connect (blank screen)
- AWL not connected to server messages
- App should support VPN connection
- Changes not always saved to thermostat
- Half of the screens don't fit on older iPhones
- App needs to keep app open for changes to take effect
- Changing thermostat mode (heating/auto/cooling) requires temperature change simultaneously
- Vacation mode issues with time zones
- Graph opens landscape only and is barely usable
- Deleted schedule still programmed
- Fan-only mode shows 0W energy use
Requested features
16 requests- Dark mode option
- More detailed metrics (loop temps, intake/supply temps)
- Ability to change humidity set point
- Remember user selections (username, password, cost per kWh)
- Consolidate data across multiple devices
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- Apple Watch integration
- Widget for iOS
- Direct utility energy cost integration
- HomeKit support
- Ability to delete non-existent thermostats
- Larger icons for temperature change
- Display current mode or schedule segment
- Permanent hold override
- API for third-party UI development
- Add 'Cancel Vacation' option
- Daily and monthly energy usage data
Control4
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Symphony by WaterFurnace
No in-app purchases
Control4
No in-app purchases
Questions
Is Symphony by WaterFurnace free?
Is Control4 free?
Which has better reviews, Symphony by WaterFurnace or Control4?
Do Symphony by WaterFurnace or Control4 have ads?
Which is updated more often, Symphony by WaterFurnace or Control4?
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