Snapchat suspended Yolo after a lawsuit was filed by a mother who lost her teen son by suicide, alleging her son was bullied on apps such as YOLO. ... Rather, the claims here are about how the anonymous messaging apps designed and distributed products and services that are inherently dangerous, unsafe, useless.

Why did Yolo shut down?

In May of this year, Snap suspended two Snapchat-integrated apps that allowed users to send anonymous messages, Yolo and LMK, following a lawsuit filed on behalf of a mother whose son died by suicide after being bullied through messages on the apps for many months.

Did Yolo get taken off the App Store?

As of this writing Yolo, which the suit says is owned by Yolo Technologies, appears to no longer be available on either the Apple App Store or Google Play Store.