Con's: 1 GB only available for user side loaded apps. (tabletroms.com)
Probably their statistics are low because many users side - loaded the Android app before the native version became available. (goodereader.com)
On the kid user side of things, the app comes with configurable color themes and a host of video and picture chat and instant messaging features like age - appropriate stickers, frames, and other fun extras to use while in one - on - one or group text and video calls. (tomsguide.com)