Ko-fi is described as 'The fast, friendly, 0% fee way to ask fans to support your work for the price of a coffee. Coffee's just a metaphor (You don’t have to buy actual coffee!)' and is a Crowdfunding service in the business & commerce category. There are more than 50 alternatives to Ko-fi, not only websites but also apps for a variety of platforms, including iPhone, SaaS, Android and iPad apps. The best Ko-fi alternative is Liberapay, which is both free and Open Source. Other great sites and apps similar to Ko-fi are Buy Me a Coffee, Open Collective, Patreon and Coindrop.