Meerkat

Free; available on Apple

https://itunes.apple.com/us/app/meerkat-tweet-live-video/id954105918?mt=8

http://meerkatapp.co/

 

Arghon A.I.E. Virtual Assistance

Free; available on Android and BlackBerry

https://play.google.com/store/apps/details?id=com.versure.arghon&hl=en

https://www.arghon.com/

 

Go Puck

Various costs

https://gopuck.com/