Scope and document app project

Job ID: 33010777

Budget: $250 – $750 AUD

I have no previous experience with app design so I am looking for someone to assist with scoping and documenting the proposed app so I can then go to market to have someone do the actual development.
I am looking to be guided on how the process of conceptualising/developing an app works.
The app is for use initially with organizing and running of Motorsport events but could have applications outside this at a later date.
Some basic high level functions would be:
Creation of the event by the promoter
Registration of participants
Running/coordination of the event on the day
Another option I’d like to look at would be to incorporate an audio stream if possible?

Anyway I’d be interested to talk with someone who can help me get this all documented in a format that I can utilise for progressing to the actual build phase.
Related categories: App Design