https://play.google.com/store/apps/details?id=com.tools.wa WhatsApp tools is the best app available for Android to chat lock and hibernate WhatsApp. you will get some great small features in your own original WhatsApp app. you also can lock group conversations and contact, directly make calls from WhatsApp to default call dialer.
Tools for WhatsApp
Chat lock, group chat lock, hibernate WhatsApp, copy WhatsApp status using floating bubble.
