When it comes to CRM software, there are a lot of them available on the market. However, none of them are able to compare with Fat Free CRM. Over the years, since it has been released, it has proven to those who use it that it is by far the best Open Source CRM software that is actually available on the market. Some of the features that Fat Free CRM has to offer those who use it are lead scoring, free, open source, manage leads, search, and building campaigns. Therefore, businesses will be able to have everything possible with purchasing just this single piece of software for their company.