Vippie is an instant messenger. You can make FREE CALLS, FREE VIDEO CALLS, send FREE MESSAGES and any kind of attachments (video, photo, audio) to other Vippie users. CHEAP CALLS? Calling and messaging any number in the world at very low Vippie-rates is also possible.
Other functions: audio conferences, call transfer, waiting calls, friendly voicemail.
So isn't it a must have app? - you have all inclusive!
“Vippie is a fresh mobile app for free communication between users....This is interesting because Vippie is on its way to become fully cross-platform and this means there won't be any OS-like barrier to call your friends for free.” Emmanuel Lund, appszoom.com
You can check Vippie’s reviews on NY Times, Androidpit, Appszoom, Coolsmartphone, Appbrain, Best10Apps... and many, many others.