App and website for tattoo and piercing shop. For scheduling appointments and payments. And email for talking to customers

I am looking for a developer to create an app and website for my tattoo and piercing shop. While I initially need two separate platforms (iOS and Android), I am open to both being combined in the future. I would like the app and website to be connected in order to provide seamless integration of features like appointment and payment tracking. Additionally, I would like to have a dedicated email account for talking to customers. The developer should be able to integrate with any third-party services I may need in the future.