Hiring an app developer will charge you a lot. Why don't you try to make your own app? That way you can have more profit, in exchange for spending a little time initially on learning certain app development software that doesn't require any coding. I came across some of such drag-and-drop platforms from a service that has been writing my paper for me a long time ago, hopefully, these will help you. AppyPie, BuildFire, GoodBarber, AppsGeyser, Swiftic, Zoho Creator Just check these out. You'll probably get tons of YouTube tutorials to start with.