Android App Popcorn Buzz lets you do a conference call with 200 at the same time free

A new Android App, Popcorn Buzz, launched by mobile messaging service company, Line App, lets you converse with 200 people at the same time - for free. With this facility, you can chat with your extended family across countries for a family function or get into a conference call with your colleagues.

You can invite anyone by simply sending them a URL.  You can also see on your phone who is talking by noticing the green dots that appear next to the users.

You can download the app here