• No blue ticks for read messages!
• Your "last seen" label will not change
• You can reply to all incoming messages - including messages from groups
And: THIS APP IS COMPLETELY FREE AND THERE ARE NO ANNOYING ADS!
Notes:
• Deleting the cache of this app may cause problems when answering to chats
• Rebooting the device may take the possibility of answering to chats (you will need to wait for a new message or you can try sending the message via Google Now)