At the beginning, this was just a simple text messaging app, but after it was purchased by Facebook, it developed many other features.
The voice recording was the first feature, and people started using Whats App as a free voice calling app.
It can be downloaded for free, and it's completely free to use.
Having one billion active users, Whats App is one of the most popular video group chat apps.
Google Hangouts is available in Google Play, but it can also be found in Apple Store.The connectivity is simple, and you can join any conversation, with your calling ID. Designed as a video conferencing app for small businesses, manages to provide a rich communication package.The app operates on the voice-over-IP (Vo IP) technology, and it's able to host a 10 person video conference, on the free plan.After a few months from this update, Facebook decided to add a video feature, making this app a great group video chat app.This feature is available today, and the connection is extremely safe and stable.