ChangeCoin

ChangeCoin was a company founded in 2014 that aimed to make it easier for people to donate to charities and support causes they care about. The company developed a platform called ChangeTip which allowed people to send small payments, known as "tips," to anyone on social media platforms like Twitter, Reddit, and Slack. Users would link their social media accounts to ChangeTip and could then send tips to other users by using mention or hashtags. ChangeCoin also aimed to help charities by allowing them to accept Bitcoin donations through the ChangeTip platform. Unfortunately, in 2016 the company shut down due to lack of revenue and high operating costs.