While awaiting my Joule to ship, I figured I'd distract myself by trying the ChefSteps App. I was pleasantly surprised to see the Joule App was ready for us, and it looks awesome!
I noticed the two egg recipes only allow 194 degree eggs. I'm not sure if that's a bug or perhaps integration of the egg calculator is coming later, but you should probably clarify that, or fix it before reviewers ding you for it.
I will take you to task on the ChefSteps App though. I'm pretty shocked to see that it doesn't support landscape orientation. I understand why the Joule app needs to be portrait, but when showing heavy text content like the ChefSteps App does, you really need to support landscape orientation and allow text zooming.