Tropic

Tropic focused on the logistics and relationships of distributed teams with little overlap in working hours.^{Source [1]}

Tropic was startup #6 of Jon Yongfook's 12 startups challenge, launched on March 5, 2019. He judged it too narrow and moved on to Talkshow; a 2020 update to the launch post says it is shut down.^{Source [1]Source [2]}