No, it's not official.
This is only the first version and Power Cycle is the feature I wanted to do most while I was out and about. I plan to add more very soon :)
Hint: DO has a website that you can actually open on an iPhone.
There are a whole bunch of apps that do exactly what this one does and more, and many of them are free.
Yup, I'm using DigitalOcean Manager, it's free and works great: