A free app for Android, by Droid Keypad.

ChatHeads for Whatsapp is a tool that helps you send personal messages to multiple Whatsapp accounts at the same time. In addition, it allows you to create and manage a list of messages, all of which can be accessed from one place. This makes it easy to keep track of all the conversations that you have in a single place.

BubblesChat – WA Direct Chat is an app that lets you create ChatHeads or Whats chat bubbles for any application. It helps you manage all your conversation in one place, so you can have a non-interrupted conversation.

You can create a ChatHead or Whats chat bubble for any application, including WhatsApp, Facebook Messenger, Kik, and more.

You can create and manage a list of messages, all of which can be accessed from one place.