Flattr is an online micropayment and crowdfunding service created in 2010 by Peter Sunde and Linus Olsson. It allows users to make small payments to content creators, content producers, and developers. It is designed to provide an easy to use platform to support creators, while enabling users to make small amounts of payments in support of the content they enjoy. Payments are made through a "flattrs" button, which users place on their websites or blogs. Content creators must register with Flattr to receive payments, and can set their own rate for payment. Flattr also offers a range of options for users, such as setting up recurring monthly payments, or choosing specific content to support. Users can also use the Flattr app to make payments directly from their mobile device.
Monero is a currency. Flattr is a platform for tipping content creators.