Miele app vs Navien Smart Plus
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Miele app
Control your Miele appliances remotely, monitor their status, and receive notifications. Get insights into usage, find recipes, and access troubleshooting guides. The app also features an in-app shop for accessories.
- Mobile appliance control
- Appliance status monitoring
- Program notifications
- Usage and consumption data
- Smart assistance systems
- In-app shop for accessories
- Remote software updates
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Your perfect companion: The Miele app gives you mobile control of your Miele domestic appliances and lets you keep track of everything – whether you are traveling or at home. Miele app highlights: • Mobile control of domestic appliances: operate your domestic appliances conveniently via the app. This means you can access your washing machine, dishwasher, or oven at any time and select the program, the start pre-selection or other options, for example. • Request the appliance status: can I add more laundry? How long does the program have left to run? With the app, you can keep an eye on your appliances at all times. • Receive notifications: If you activate notifications, the app will inform you when your dishwashing program has finished or when your laundry is ready. • Transparent usage and consumption data: Get information about your personal water and electricity consumption, as well as tips on using your appliances more sustainably. • Achieve perfect results: Smart assistance systems will help you to select the right washing/dishwashing program or make the perfect cup of coffee. • Smart support for your appliances: Resolve problems quickly on your own. The Miele app will show you appliance faults as well as the most common causes of faults, including step-by-step troubleshooting instructions. • Miele in-app shop: Find the right cleaning products and accessories for your Miele appliances quickly and easily in the Miele app and order with just a few taps. Download the Miele app now and discover the added value of a networked home. RemoteUpdate – always up to date Want to keep the effort of maintaining up-to-date networked domestic appliances to a minimum? No problem, thanks to our RemoteUpdate function. Software updates appear automatically when they are available and can be installed if desired. Consumption Dashboard – transparent usage and consumption data Keep an eye on your water and energy consumption at all times. The Consumption Dashboard shows your consumption values after every program cycle, provides tips on how to use your dishwasher and washing machine more sustainably, and gives you an individual monthly report. Get to know your appliances better and look after your wallet and the environment at the same time. Washing assistant – achieve perfect wash results Can you achieve perfect cleaning results without being a laundry expert? No problem with the Miele app! The washing assistant in the Miele app will give you advice and help you find the perfect program for your laundry. You can start the recommended program straight from the Miele app. Recipes – discover culinary worlds The Miele app turns cooking into a journey of culinary discovery. Find inspiration for delicious, sustainable recipes so you can cook and bake for any occasion. CookAssist – the secret to perfect roasting results Miele CookAssist not only helps you to cook the perfect steak, it is also available for a wide range of other dishes. Thanks to the step-by-step instructions in the Miele app, temperatures and cooking durations are automatically transferred to the TempControl cooktop. All you need to do is confirm the settings. Download the Miele app now and enjoy the full Miele experience. Demonstration mode – try out the Miele app even without any Miele domestic appliances The demonstration mode in the Miele app provides a first impression of the range of possibilities for this app even if you do not yet have any network-enabled Miele domestic appliances. Important information for use: This is a separate digital offer from Miele & Cie. KG. The range of functions can vary depending on the model and the country. Acceptance of the Terms and Conditions and Privacy Policy for Miele digital products & services in the Miele app required. Miele reserves the right to change or discontinue the digital offer at any time.
Navien Smart Plus
Control your home's heating and hot water remotely. Monitor energy usage, set schedules, and benefit from intelligent features like geofencing and weather-adaptive adjustments. Ensures comfort and efficiency by learning your habits and responding to external conditions.
- Remote heating and hot water control
- Energy usage monitoring
- Intelligent learning thermostat
- Geofencing capabilities
- Weather-adaptive adjustments
- Multizone control
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Navien Smart Plus App will allow you to control heating and hot water anytime anywhere. You can simply check a status of heating system, and see how much energy you've used. In order to use Smart Plus App, sign up for a membership and register your Smart Plus Thermostat. Smart Plus Thermostat is compatible with any models of Navien LCB700 and NCB-CE boiler series. ■ Main Features - Easy-view energy usage monitor - Accurate forecast adapt - Intelligent learning thermostat (Hot water schedule) - Geofencing(The Navien SmartPlus app collects location data even when the app is closed or not in use to support the use of the Geofencing feature.) - 2 channel scheduling) - Multizone control (up to 3zones) - Boiler plus compliant ■ Smart forecast check Now your heating can check the weather forecast, and adjust itself accordingly. Come rain or shine, your boiler will respond intuitively to current conditions with Navien Smart Plus. When connected to Wi-Fi, it checks the weather forecast on the internet, ensuring your home is always the most comfortable temperature, and that your boiler is only using energy when you need it to. ■ Geofencing capabilities Let your location take care of your heating, with Navien Smart Plus. Never again return to a cold house, or heat an empty home. Simply register your smartphone, and your boiler will know when to turn on and off based on your proximity to home. Set up with multiple users and the whole household can enjoy the benefits of Geofencing. Vulnerability Reporting We are committed to responding to all security vulnerability reports as promptly as possible. While we aim to process all reports swiftly, we will generally provide an initial response within 5 business days of receipt. Progress Updates and Resolution We may provide progress updates depending on the reproducibility and severity of the issue. Once the issue has been fully resolved, we will inform the reporter that the matter has been successfully addressed. Security Update Support Period Security software updates for this product are guaranteed until 31 July 2031. During this period, necessary patches and updates will be provided to address potential vulnerabilities. Contact for Security Inquiries or Vulnerability Reporting Email: service@navienuk.com Telephone: 0344 332 2323
Screenshots
Verdict
The clearest difference is rating: Miele app at 4.1 against Navien Smart Plus's 3.7. Miele app also leads on ratings volume (3.6K vs 3) and review sentiment (21% vs 13%). Navien Smart Plus's advantage is iOS requirement (13.0 vs 15.0). On price, update cadence, 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.
Miele app holds the better App Store score, 4.1 against 3.7. That said, the two scores are not equally well evidenced: Miele app has 3.6K ratings behind it against 3, so its average is the more settled of the two. Written reviews point the same way: 21% of Miele app's written reviews are positive against 13% of Navien Smart Plus's.
Miele app ships an update every 2 months, Navien Smart Plus every 5 weeks. The most recent releases landed on November 6, 2026 and November 2, 2026 respectively.
| Parameter | Miele app | Navien Smart Plus |
|---|---|---|
| Price | Free | Free |
| Rating | 4.1 (3.6K ratings) — better | 3.7 (3 ratings) |
| Positive reviews | 21.1% of reviews — better | 12.7% of reviews |
| Number of ratings | 3.6K — better | 3 |
| Update frequency | Every 2 months | Every 5 weeks — better |
| Ads | No | No |
| In-app purchases | No | No |
| Monetization | Free | Free |
| Devices | iPhone, iPad, iPod — better | iPhone, iPod |
| Requires iOS | 15.0 | 13.0 — better |
| Further details — not scored | ||
| Size | 389 MB | 37 MB |
| Age rating | 12+ | 4+ |
| Developer | Miele & Cie. KG | KD Navien |
Customer experience
Miele app
Navien Smart Plus
User reviews
Miele app
From 3.6K App Store ratingsWhat we love
- 👍 Useful notifications
- 👍 Convenient remote control
- 👍 Helpful washing assistant
- 👍 Detailed usage tracking
Room to improve
- 🐛 Frequent connectivity issues
- 🐛 Unreliable app performance
- 🐛 Confusing user interface
- 🐛 Lack of key features
- 🐛 Slow and unresponsive
Navien Smart Plus
From 3 App Store ratingsWhat we love
- 📈 Recent updates improved stability
- 💡 Oil consumption indication useful
- 💡 Cumulative totals and monthly graphs useful
- 💡 App works for remote switching
Room to improve
- 🐛 App constantly crashing
- 🐛 App frequently offline
- 🐛 App requires frequent restarts
- 🐛 Scheduling interface difficult
- 🐛 Thermostat has a mind of its own
Bugs and requests
Miele app
Reported bugs
4 issues- Cannot log in or create account
- Appliances disappear from app
- Delayed start function not working
- Incorrect temperature/time reporting
Requested features
4 requests- Add ability to turn off end-of-cycle beeping
- Improve TwinDos detergent level tracking
- Allow remote start/stop of appliances
- Integrate with smart home platforms
Navien Smart Plus
Reported bugs
108 issues- App not working since update
- Water heating not being timed
- Energy usage doesn’t work
- Loses info - history
- Glitches so all of a sudden it goes into holiday mode
Show 103 moreShow fewer
- Holiday doesn’t work
- Cannot turn holiday mode back on through the app
- App very temperamental and typically requires the app to be fully closed and restarted
- App is awful, boiler inefficient and unreliable
- Out of action more times than it’s working
- Very temperamental boiler and the APP is very annoying and unreliable
- Timer on the app is awful
- System has a fault, only way to know is when heating hasn't come on or error code on thermostat
- Needs to be improved, have to keep logging out and back in to get working
- Unreliable, slow and often does not work
- App glitches a lot
- Data and graphs don’t work
- App no longer works
- App won’t load
- Horrendous app
- Schedule interface is ridiculously contrived and difficult to work with
- Boosts don’t have durations
- Thermostat has a mind of its own
- App is constantly crashing when clicking on it
- It won’t even open
- Horrendous app constantly down
- Constantly crashes
- Doesn’t even allow you to log in
- Unusable app
- App says ‘loading’ and then changes to ‘offline’
- App doesn’t get updated
- Half the features don’t work
- Can’t even sign up and make an account through the app
- Keeps telling me my two passwords don’t match THEN tells me I have an incorrect password
- Attempted to log in using both different passwords and obviously tells me I don’t have an account
- Doesn’t work. App crashing all the time
- Tried reinstalling app. But still doesn’t work
- App won’t open
- App has completely stopped working
- Instantly closes down when I try to open it
- Doesn’t work or function reliably
- App says ‘offline’ when everything else is working fine
- App does not work
- Smart control of our central heating isn’t possible
- App says it’s offline even though the boiler control module says it’s connected to the wi-fi and the server, and is working correctly
- Re-connecting the control module to the wi-if multiple times and deleting and reinstalling the app hasn’t resolved the issue
- Latest Update: app has just stopped working
- Infuriating to use
- Each time you load up the app you must force close the app and restart it to view the thermostat or to change any settings
- Connects to my wifi but won’t connect to the internet
- Terrible app
- Almost useless
- Constant issues connecting
- Glitchy
- Could use some work
- Not updated in ages
- App keeps crashing when trying to change oil usage
- Very very poor
- So many bugs with it
- Developers can’t be bothered fixing them
- App on my iPhone 11 doesn’t work
- Won’t keep my location
- Constantly have to re enter all info to get it to work
- Geo fencing never works
- Fuel consumption never work dispute constantly putting the Corcyra setting in
- App was difficult to set up
- Wouldn’t connect to my wifi during my first attempt at registration
- Didn’t recognise the serial no of my boiler
- App always says offline when I open it
- Takes some time to connect
- Says off;one when it has two blue lights and is online
- You have to wait 20 seconds for it to reset then shows online
- My temperature is set to 22 degrees but the app shows 0 degrees setting yet the boiler fires up as it should
- Can’t put in special characters in password & doesn’t inform you this
- Translation labels don’t match up
- Connecting shows “network issues” but if you spam tap the button it’ll work
- Repeat all these steps every time because the account doesn’t persist
- App needs fixing as keeps shutting its self down
- Hot water program options has been removed and you can only program heating on the app now
- Shows as offline constantly
- Constantly resets itself to whatever it likes
- Temperatures bear no resemblance to those we input
- Eg will always reset Tuesday to have temp of 32c at 7am, no matter how many times we set it to a normal temperature
- Constantly goes ‘offline’
- Useless as a way of controlling the boiler
- There’s some sort of bug which means you can’t input the password to set up the account
- Constant need to exit the app and then reopen otherwise it says “ offline”
- Geofencing doesn’t work since it cannot identify my location
- Oil consumption not updated daily
- If an “E002” error appears on room thermostat it is not replicated in the app
- The setup process for this assumes that everything will go smoothly and look exactly as it does in the pictures
- If it doesn’t, there is no way to skip the setup process or sidestep to get help
- There’s no apparent “Wi-Fi button” on it
- The process for pairing it with the app must differ from the directions provided, but there’s no other guidance of any kind available
- Constantly says ‘offline’ so you have to close and reopen until it connects
- Scheduling is totally non-intuitive
- When you click on another day, it annoyingly automatically reverts to the Monday
- The app does not stay connected
- Comes up with check internet connectivity, there’s nothing wrong with my WiFi
- When I turn the heating down using the app, it resets itself back up again within a minute or 2 and the heating turns on again
- It only stays off if I use the RF control instead
- App used 43% of my battery in 3 hours while running in the background
- App needs to use the same type of GPS usage as an actual navigation app
- The only way to stop it is to kill the app
- Poor design and usability
- Written in broken English in a variety of fonts which hurts my head
- Control options are confusing and not intuitive
- Operationally works fine with the boiler but could look better
Requested features
21 requests- Implement summer time mode
- Add dark mode
- Improve scheduling interface
- Allow duration for boosts
- Show error codes in app
Show 16 moreShow fewer
- Improve user interface
- Add customer service contact
- Allow remote control from outside Wi-Fi network
- Make app more user convenient
- Redesign app by a professional
- Add option to sign up through web
- Fix password input bug
- Add support for special characters in password
- Improve translation labels
- Make account persist
- Add hot water programming back to app
- Add GPS location accuracy
- Fix geofencing issues
- Fix fuel consumption updates
- Add Wi-Fi button instructions for water heater
- Provide additional setup guidance
In-app purchases
Miele app
No in-app purchases
Navien Smart Plus
No in-app purchases








