CAKE.com (Clockify)

CAKE.com, formerly COING, is a bootstrapped productivity software company founded in Novi Sad in 2009 by Nenad Milanovic. It is best known for Clockify, the world's most widely used free time-tracking app, launched in 2017 and now used by over 5 million users globally including HP and American Express — voted best overall time-tracking app by Forbes. The company expanded its product suite to include Pumble (team messaging) and Plaky (task management), rebranding the family of tools under the CAKE.com umbrella in 2023. The company reached $25M+ ARR entirely bootstrapped without venture capital.