Timeful was an iOS to-do list and calendar application, developed to reinvent the way that people manage their most precious resource of time. Launched January 1, 2012; shut down December 11, 2015 — it lived 3 years. One of 14 Google products killed in 2015. https://www.crunchbase.com/organization/timeful#section-overview Data: Killed by Google (killedbygoogle.com, MIT).