You got an impressive idea to create an application about sharing emotions. Is it like I can check the emotions of people around me and send them a message? That sounds really great. The idea of you will be able to see someone is sad or happy near your area. You can talk about your problems or anything about how you feel right now.
To tell you honestly, recently, we worked with an app called Paralign, it is also an app about emotions, people will post how they feel or what they are thoughts and the app will align their posts to other people who have the similar or closely related thoughts. It is an exsisiting application in appstore and google play and we improved its UI/UX design. After that, it doubled its downloads and I think we can collaborate with your team. Aside from your great ideas, you got 2 full time developers, I think it will be awesome for us to be partners. We are a team of 3 UI/UX designers, and with our collaboration, we can achieve top-notch mobile applications.
You are a great team and I guess you know that team collaboration in research, conceptualizing and any other process is really great if you are a team. The decision is yours, collaboration is the key, let's work on your applcation.