Ahh ok. I thought the app may be a project for yourself or your own company. It's important to have the companies you provide to, fully backing the technologies you choose.
Can't go wrong with JS front and back. Me personally though, I liked it but never loved working in it. But, that's for my own projects :)
Great chat!
To be precise, it's a project I hope to be able to monetize one way or another.
Worst case scenario, I'll learn stuff and make it free ^^