Airgram Messenger is an Unofficial and non-Filtered that use Telegram API with Advanced and Special Features .
Some Features :
+ Categorized tabs for chat : users , groups , superGroups , channels , bots , Favorite .
+ Hidden section : hide your chats with password.
+ Draw pictures and send as message .
+ Favorite Chat , Contact.
+ Auto answer machine ( the Secretary ) .
+ Voice changer .