Cwtch is described as '- (a Welsh word roughly translating to “a hug that creates a safe place”) is a decentralized, privacy-preserving, multi-party messaging protocol that can be used to build metadata resistant applications' and is a instant messenger in the social & communications category. There are more than 25 alternatives to Cwtch for a variety of platforms, including Android, Linux, iPhone, Windows and Mac apps. The best Cwtch alternative is Signal, which is both free and Open Source. Other great apps like Cwtch are Telegram, bitchat, Wire and Briar.