App bs

Hello, I have had an app idea and have done work on it and got pretty far so far. I have the mission statement saying exactly what the app does and how it works, drawings, terms and conditions, and whats needed. The app already has a record. The app is going to be for ios and android. The app has been shared with developers and is in process of finding developers and getting developed,
Im now looking for some reviews of what people think about this app. It is an app that helps users find what they are looking for in their area and get information about it. The app holds a lot more information about exactly what your searching for.
Also Would anyone know what the pros and cons of getting my app developed by a company other than finding my own private developers? Would it make the company responsible for my app and they would take care of any updates it needs?

Thanks!

might be handy for someone who does a lot of traveling, but you might have to compete with other apps that do the same thing.