With SaaS Version of "Mint Invoice", you can host entire script in your server and offer all the above functionalities to your customers. Your customer need not to install the script in their computer thus saving a lot of time of your customer by reducing installation and maintenance.
Your centralized script will serve individual instances for every customer, making this script "on-demand" as and whenever required by accessing "anywhere & everywhere" from "any devices" whether it is laptop, desktop, tablet or mobile.
Once you deploy this script in your server say www.example.com, your customer can create instances at any available subdomain say abc.example.com or xyz.example.com etc.
You can offer trial period to your customers and after the end of trial period, they need to pay subscription charge either monthly or annually.
The script comes with powerful "Admin Panel" which allows you to control and configure front end website as well as the application.
This script offers full white-label branding for your company which doesn’t require any kind of back link or credits of the author.