Rhyno project manager is basically what the name is. You will be able to manage your clients , projects , support tickets , team members , administrators , payments , expenses and much more.
In the client side they will be able to pay with paypal & stripe with tax calculation when overdue. Also uses an API that converts client money ( EX: GBP ) to your current preference ( EX: USD ) ! Client will pay normally and you will receive normally !