Homer is described as 'Free cross-platform SIP softphone with video support. It is able to communicate in peer-to-peer mode without any infrastructure in the network. But it also supports SIP servers (PBX boxes) as well' and is a Video Calling app in the office & productivity category. There are nine alternatives to Homer for a variety of platforms, including Windows, Linux, Mac, Android and iPhone apps. The best Homer alternative is Jitsi Desktop, which is both free and Open Source. Other great apps like Homer are Linphone, Empathy, MicroSIP and YakYak.