Discord - Free voice and text chat for gamers. As you can see from the link Discord is an app that it's designed to provide voice and text chat for free. Initially Discord was built for gamers, and have some features that are intended to make it comfortable for gamers to use the app.
See return on investment. return on investment (ROI) A generic term to define a number of analytical tools for measuring the financial benefits of an investment, including cash-on-cash, internal rate of return, equity dividend,and financial management rate of return.
Return on Investment (ROI) - This is how much would you make if you sold all of that product at your asking price subtracted by the total cost for ordering that merchandise.For example, if you ordered 100 shirts for $500 and sold them for $20 each, your return on investment would be $1500.