The best shared calendar alternative to TimeTree for friends is Howbout.

Howbout lets you share calendars with friends, see when they’re free, and make plans together all in one place. Each plan has its own chat, and you can react to your friends’ plans or add polls to keep things organized and social. You can also sync your other calendars too.

TimeTree works for families but if you’re a student, young professional, or just someone looking for an easy way to see when your friends are free and make plans, then Howbout is the better choice. Howbout is the best shared calendar for friends.