I was under the impression that thermostats like Nest are wifi-connected too. Am I wrong? If so, are you worried about them becoming connected at some point? What would that mean for Rumy?

Rumy works as an add-on/extension for Nest thermostat. Nest, by itself is wifi connected. However, because it is physically wired to a location, you cannot carry it around the house or place it in a location you want. Rumy eliminates the shortcoming of Nest and gives it portability.

Your questions are perfect :)

Yes. An app can do the job, but it has few limitations.

We think that an app is good for controlling when you are away from home.

The process of controlling from phone involves turning the phone ON, unlocking it, run an app and adjusting temp. This can get annoying very quickly after the initial exciting phase.

Think about a situation where you don't have any dedicated track change button to your car stereo. Will be annoying, right?

Also if I wake up in the middle of the night, I really don't want to play with my phone because that disrupts my sleep really bad. Rumy is one step.

Another important limitation is that phones don't have an ambient temperature sensor. This is mainly because they are by themselves heat generator and also, what if you want to put the phone under your blanket? The same goes for wearables. When you are inside a blanket ambient temperature reading from wearables can be few degree off than actual, which can render a very uncomfortable heating/cooling situation. Rumy doesn't have these problems.

I typed in notepad and pasted. I didn't realize that my line breaks didn't work in this text box.

Also are you thinking of an edit/delete feature?