Thermometer for iPhone & iPad. Measure the temperature right where you are with Thermodo. Plug Thermodo in your audio jack and let the sensor adjust to the environment. Watch the vibrant visuals as the environment change around your Thermodo. It's never been more easy to take temperature measurements on the go.

Thermodo is a tiny thermometer for your iPhone & iPad and the Companion app is the first piece of software you'll need to enjoy your new weather gadget.

= The Companion app features =

▸ Measure the current temperature with Thermodo
▸ A beautifully clean design that comes alive when taking measurements
▸ Your measurements are automatically stored and can be accessed, examined, shared and exported.
▸ Your measurement history is saved on your devices.
▸ Supports iPhone, iPod Touch and iPad. iOS 7 and above.
▸ Get low, high and average temperature of your last measurement by swiping up
▸ More about the Thermodo project and guides on how to get the most out of your sensitive little thermometer
▸ Fahrenheit & Celsius support

Learn more at and get your own Thermodo. If you have questions be sure to check

What’s New

Version 1.6.3

The 1.6.3 update fixes an issue where measurements could not be shared on iOS 8 and where measurements may be sorted wrong in the history.
The update also fixes an issue where measurements were not exported correct from the history.

New in version 1.6:
- Optimized for iOS 8
- Optimized for iPhone 6 and iPhone 6 Plus
- Various bug fixes and improvements

Note: Due to some technical difficulties with iCloud sync on iOS 8, we have had to disable it for now while we are investigating other options.

Ratings and Reviews

3.3 out of 5
44 Ratings

44 Ratings

sourlake ,

Works well but don't expect miracles

I have had my device for a couple of years and it gives accurate temperatures. That is because I use a 4" phone jack extension that accommodates both speakers and mic (it needs all channels) to move the sensor away from my phone. If you don't do that it will read high! Be realistic. The sensor gives the temperature of what it is near. That means if you expect to use it with your phone in your pocket, you will be disappointed.

MommyWoman ,

Thermodo is Hot!

I was one of those nerds who Backed this little gadget/project on KickStarter, so I got it in KickStarter green, which helps to keep me from losing it!

This neat little doodad works quite a bit better than I initially expected it to, being as it operates via the headphone jack. I've found that this little gizmo is very accurate, even over time (over a few hours - my max has been just short of 14 hours). The setting that allows it to compensate for warming of the device caused by its use is handy as hell and actually does lend to the accuracy of the readings! I've verified the readings by using a couple of additional thermometers, digital and mercury based, and they've all been consistent with each other.

The reasons I need to obtain accurate temperature readings inside my home are our various pets. It's not that we have lots of them, or even particularly exotic varmints; but we do love our creatures and want them to be comfortable and happy so as to live as long a life as possible.

All in all, this tiny nugget of technology is terrific, as is its accompanying software. Which is what I have learned to expect from a company called RoboCat. It's about time someone acknowledged the programming abilities of our intellectual superiors, Kittehs. I'm hopeful that we'll get more useful, inspired hardware & software from RoboCat! 😸

JohnZ1492 ,

It works

It seems to be simple in concept and design. It shouldn't need a manual, but FAQ or tips might help some. I initially thought mine was inoperative on receipt. It was stuck at 25°C or its Fahrenheit equivalent either plugged into an extension cable or directly to the headset jack. Before I sent it back, I tried it on another iPad and it worked... Mine was set to monaural audio output, switching to stereo solved the problem.


39 MB

Requires iOS 7.0 or later. Compatible with iPhone, iPad, and iPod touch.


English, Arabic, Catalan, Danish, Dutch, French, German, Greek, Hebrew, Hungarian, Italian, Japanese, Lithuanian, Macedonian, Norwegian Bokmål, Polish, Portuguese, Romanian, Russian, Serbian, Simplified Chinese, Slovak, Spanish, Swedish, Traditional Chinese, Turkish

Age Rating


  • Family Sharing

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

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