a crm targeting locksmiths businesses for web, ios and android

I'm looking for someone to help build a custom CRM targeting locksmiths businesses for web, iOS and Android. The CRM needs to include features such as client management, appointment scheduling, invoicing and payment tracking, as well as inventory tracking. I don't require any specific integrations with existing software. I have a budget of $500 to $1000 for this project. If you think you are the right fit, please apply.

Disclaimer: I am looking for a UI/UX designer. Not a Developer