With buggg, an app that encourages spur-of-the-moment gatherings, you’ll always know who’s down to hang.

What we love: How quickly a meetup can come together. Set when you’re free and what activities you’re up for (like grabbing some coffee or going for a walk). Friends who are feeling social can ping you and pick an activity you suggested.

Quick tip: Get a notification when a friend sets their availability—or have the app nudge you if you haven’t reached out to anyone in a while.