IGAP

iGap is an Iranian open source, cloud-based, cross-platform, instant messaging (IM), social media and VoIP service developed by the Kian Iranian STD. It is the first end-to-end encrypted, open source and AES encrypted messeinging app in West Asia and one of the most popular messaging apps in Iran and West Asia, with more than 20 million users. iGap enables users to send text and voice messages, sh... (Wikipedia)