Under new CEO Marissa Mayer, Yahoo has been working on expanding the services it offers across multiple platforms and its latest move on that front is the acquisition of Astrid. The Astrid Tasks and To-do list app is a popular productivity manager on Android and iOS, particularly notable for its tie-ins with Google Calendar and the ability to assign tasks to others. In a blog post, CEO and co-founder Jon Paris announced the company will be joining Yahoo's mobile team with a goal of "making the world's daily habits more inspiring and entertaining." As for existing users, the service will continue to work as-is for 90 days, and those who have paid for annual subscriptions to add on file storage, backup and more can expect refunds from Yahoo. There will also be a way for users to download all their data, although there aren't any details on that yet. Astrid had received funding from Google Ventures, among others, but as shown by the launch of Google Keep it seems the usual giants in tech will be focusing on in-house ways to offer productivity features.