mobile app for service startup

More details: Want to create an app following the same business plan as a DoorDash style app but with services for customers needing help with any project personal or business related. Want to have an starting page that allows persons to put in description of what is needed and any materials that are required by our accepting persons of the task, to complete such task.

Which operating systems should the mobile app be compatible with? Both
What is the main purpose of your mobile app? Service booking
What kind of payment methods do you want to integrate into the app? Credit/Debit cards,Mobile wallets (like Apple Pay, Google Wallet),Bank transfers