Wunderlist Became Microsoft To Do

Wunderlist has shut down. Wunderlist was created in 2011 by Berlin-based startup 6Wunderkinder. The company was acquired by Microsoft in June 2015, at which time the app had over 13 million users.
Microsoft Said-

"The new Microsoft To Do is here
It’s been an exciting journey since we announced our new app, Microsoft To Do. We couldn’t have made this app what it is today without your support and the feedback you gave us. For that, we want to say a massive thank you! Since our announcement, we’ve been working hard on the evolution of Wunderlist that you told us you’d like to see. We looked at the best bits of Wunderlist and To Do to figure out how we could incorporate these into one great app.

Today, we’re excited to unveil what we’ve been building for you at the Wunderlist/To Do offices here in Berlin. It’s time to take a first look at the new version of Microsoft To Do"