Proxygram is described as 'is the fastest messaging app on the based MTProto , connecting people via a unique, distributed network of data centers around the globe. this app uptime for all times because use MTProto Proxy'. There are seven alternatives to Proxygram for a variety of platforms, including Android, iPhone, Android Tablet, Windows and Windows Phone. The best alternative is Telegram, which is free. Other great apps like Proxygram are Telegram X (Free, Open Source), Plus Messenger (Free), Unigram (Free, Open Source) and BGram (Free).