I have to uninstall the app after having so much trouble. There's no notification until I opened the app, contacts did not synchronice, and catalogs gone missing all of a sudden. Ive been using this apps for the past couple of months, it was great in the begining. But lately there are just too many glitches in the apps. I have to give up and move back to regular Whatsapp to avoid missing out important messages from my clients again.