ElGrami is an UNOFFICIAL messaging app that uses Telegram's API and add Advanced Features to it.
ElGrami is an Unofficial Telegram with Internal proxy which meets your need to Vpn.
ElGrami is an Unofficial Telegram which has many Advanced features such as :
Hide Section ( you can hide your chats !! )
Multi Froward
Nameless Forward
Beautiful Themes
Contact Changes
Online Contacts
and....
With ElGrami you can Enjoy messaging with many useful features and you don't need a Vpn for this because ElGrami is an Unofficial Telegram which has Internal Proxy system.