* Featured in the "Works With Nest" partner program *
The app has been reviewed, and approved by the Nest Labs QA department.

The app has Siri Voice shortcuts for seamless Siri control of your Nest, from both the iPhone and Watch. It fully supports Apple Watch LTE, and can work when the iPhone is not around - as long as the watch itself has internet access (either LTE or WiFi).

Apple Watch and Nest Learning Thermostat. Together in perfect harmony.

Thermo Watch offers the quickest, most intuitive way of controlling your Nest Thermostat:
• Using Siri voice shortcuts you can control many aspects of your Nest, such as instant activation of heating or cooling, direct setting of your favorite temperatures, increasing/decreasing the temperature, and setting the Home/Away state. Thanks to Thermo Watch, It's all finally just one casual "Hey Siri" away, all with informative visual and verbal feedback.
• From the watch face, tap on the Thermo Watch complication to open the app. Spin the Digital Crown, or Swipe up/down to adjust the temperature. You can start adjusting the moment the app opens.
• On your iOS device you can press firmly onto the app icon to open a quick popout menu, you can swipe to the notification center to adjust the temperature on the Widget, or you can just open the app. Again, you can start adjusting the moment the controls appear.
• From your Apple TV, open the app, and swipe up/down on the remote to change the temperate.

In the watch app, the Digital Crown behavior is carefully tuned for this purpose, so you won't be overshooting the desired temperature. The watch will let you know with a chime and a tap, that the thermostat has received and applied your command. At home or outside - control from anywhere you have the internet access.

Monitor your Thermostats and Home/Away status right from the watch face, using complications that update in the background, without having to launch the app.

On your Watch, you can use your voice to control the temperature. Just tap on the Voice Input button and say "74", "Start Heating" or "Stop Cooling". If you have multiple thermostats you can even address them directly, by saying for example "Start Heating Upstairs" or "Start Cooling the Living Room". It will work, no matter which thermostat is currently displayed in the app.

If you're in the mood for it, you can even say things like "Computer, set the temperature to 74 degrees, I'm freezing!". That'll work too.

The app supports multiple thermostats in multiple homes - just swipe left and right on your Watch screen to access them, or see them all at the same time in the iOS Widget and the app. Fahrenheit and Celsius are both supported, with the correct half-degree setting for Celsius.

Beyond that, you can press the Watch screen firmly for additional functions, like switching to a heating or cooling mode, setting the away status, or turning the fan on and off.

While the app's minimalist looks betray the simplicity of its operation, what they don't show is the amount of planning, design, development and refinement that went into it, ensuring it becomes something that is enjoyable to use and experience.

The goal was to make a product that would feel like it truly belongs to the Nest ecosystem, and that would not look out of place next to one of the apps bundled with the Apple Watch. A tall order, but in the end, delivered - the app has been thoroughly reviewed by Nest Labs, and approved for their Works With Nest partner program.

Please make sure to sign in with your main Nest account. At this time, Nest doesn't support Family accounts in 3rd party apps.

Please Note: Thermo Watch does not collect any of your data. Your login information, thermostat settings, and any activity - all of it flows exclusively between your watch, your thermostat, and Nest Labs. Author of Thermo Watch has no access to any of it, at any point.

What's New

Version 9.2

Siri voice control is here, and so is the support for all new iPhones and Watches! This update adds complications for the new watch faces on Series 4 Watches, as well as an improvement to Siri shortcuts operation. It is now possible to to issue Start Cooling and Start Heating commands even if thermostat is in "Off" or "Eco" mode, and to issue a Start Cooling command if thermostat is in Heat mode (and the other way around, of course). It is now even possible to issue a "Temperature increase / decrease" command if the thermostat is in Eco mode. By doing so, the thermostat will first switch to a mode it was in prior to going Eco, and then temperature will be adjusted accordingly.

+ Using Siri voice shortcuts you can now control many aspects of your Nest, such as instant activation of heating or cooling, direct setting of your favorite temperatures, increasing/decreasing the temperature, and setting the Home/Away state. Thanks to Thermo Watch, it's all finally just one casual "Hey Siri" away, all with quick and informative visual and verbal feedback.

+ Shortcuts you've created can be used as part of the workflow in the Shortcuts app.

+ Thermostats can now be manually re-ordered in the iOS app, and the order will propagate to the iOS Widget, and the Watch app. Just pick and drag them up and down the list.

+ New screen sizes on all new iPhones and Watches are supported (support for new complications coming very soon!)

+ Siri Watch face cards shortcuts added. Based on the time of the year, you will be seeing cards to start/stop heating or cooling, as well as to simply launch the app.

+ Thermostats displayed on the iOS Widget can now be cycled through, by tapping the text on the right side. This way you can access any thermostat you wish, while keeping the widget minimized. If you double tap on this text, the official Nest app will open (previously it would open with a single tap).

+ Leaf icon is now repositioned to a more prominent place in the Watch app.

I hope you will enjoy this significant update - the proper Siri support for Nest has been sorely missing - until now!

Ratings and Reviews

4.0 out of 5
43 Ratings
43 Ratings

Great Functionality!

The app is great! The app is very functional and gives me a great status view and control of my two Nest Thermostats! Some of my favorite features are: 1) the iOS widget provides me a fast way to control the temp, home/away status, humidity, and ambient temperature for my upstairs and downstairs thermostats. 2) Apple Watch widget gives me the same control as the iOS widget but it also has a GREAT complication showing me the cool/heat status, on/off status, ambient temperature and humidity. [the Nest Watch app doesn’t have this]. 3) tvOS app also gives me all the above control on my AppleTV [the Nest TV app doesn’t have this-in fact, you can’t control your thermostats on the AppleTV Nest app. It’s only for the Nest Cam].

With all that said, I’ve reached out to the developer a few times to provide suggestions and issues and they have been VERY responsive! I would recommend this to anyone who wants a really cool control and UI for their Nest Thermostats.


Outstanding App and Awesome Developer!

I don't usually write app reviews, but I was really impressed with this app and developer. Clearly a lot of thought and work has gone into this app, and there's a surprising amount that it can do. The Siri shortcuts are amazing!

I initially had an issue with Siri encountering an error when trying to complete this apps shortcuts, but I contacted the developer and got a quick response with some troubleshooting tips, which quickly solved my issue. It turned out to be that my Nest was set to the mixed Heat/Cool mode, which is not supported for Siri Shortcuts (fine by me, I just left it in that mode because I'm lazy). After setting it to Cool via the official Nest app, I was then able to ask Siri to make it two degrees cooler and promptly hear the fan turn on.

Very impressed with the quality of this app, the value for the price (I would have happily paid $9.99 for this app), and the quick developer response. Oh, and I haven't even tried it on my Apple Watch yet, so I'll update here when I do.

If you have any issues, please reach out to the developer, he sorted my small issue and had me up and running in no time!


Watch complication is wonderful

The Thermo Watch app itself is not the focus of this product. The Today View widget and the Apple Watch complication are what truly make this app invaluable for me. Being able to see the current ambient and set temperatures at a glance is so much easier than opening the slow and cumbersome Nest app (especially since I have a bunch cameras and smoke detectors that clutter the interface of Nest’s app). Adjusting the temperature on the watch is also quick and easy. It’s a simple pleasure, but it’s one that Nest itself doesn’t offer, so I’m very thankful for Thermo Watch

Developer Response

Thank you for the review. The main focus of the iOS app right now is to enable Siri integration with your Nest. You can go in the app, create Siri shortcuts, and then use Siri to control your Nest, without having to open the app.


Marko Radakovic
32.1 MB
Requires iOS 9.0 or later. Compatible with iPhone, iPad, and iPod touch. Apple TV.
Age Rating
Rated 4+
© 2018 Marconelly


  • Family Sharing

    With Family Sharing set up, up to six family members can use this app.

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