Calendar apps by themselves are easy to find — throw a dart at the App Store or the Google Play and you’re likely to hit one. The trick is to find a calendar that you can share with other people. Whether you’re a busy family, a professional team, or just a house full of roommates, these calendars can help keep everyone on the same page. Cozi This popular app has multiple productivity features built around its calendar, including shopping lists and tasks for multiple users. Its simple interface makes it easy for different users to keep track of each other.…

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