Datally (formerly Triangle) was a smart app by Google that helped you save, manage, and share your mobile data. Launched June 1, 2017; shut down October 17, 2019 — it lived 2 years. One of 37 Google products killed in 2019. https://thenextweb.com/google/2019/10/17/googles-datally-app-for-saving-on-mobile-data-is-dead/ Data: Killed by Google (killedbygoogle.com, MIT).