goober VoIP - allows you to make cheap international calls to mobile phones and landlines. For 40 countries, the first two minutes of every conversation are free. After the call, the cost for those two minutes will be credited to your account.
For more savings, you can use flatrates
Firetalk - allows you to make free calls to USA, Canada and UK, and cheap calls to lots of destinations around the world. New users will receive a $1 dollar credit, to call worldwide.
Firetalk lets you make & receive calls and message other Firetalk users for free
Cisco WebEx Meetings - It's easy to stay connected to important meetings, wherever you are.
With WebEx, you can join any web conference right from your iPhone and iPad.
Experience WebEx High Quality 2-way video on the iPad 2 and iPhone 4 by viewing the video feeds of the participants in the web conference and streaming your own video back to them
FREE Calls & Text by Mo+ - This app lets you make free calls and send free messages to any phone number in the US and Canada. All you need is an internet connection.
· Free. All the services of voice calls and texting are as free as you believe.
· High-quality voice calls
Plingm for iPhone - Plingm (formerly called freephoo) allows you to keep in touch with friends wherever you are. Calls to buddies who are also using the app are free. You can also make cheap international calls at a fixed rate to mobile numbers and landlines and save money.
· Call your friends from Facebook & LinkedIn without having their number
Talk Out Mobile VoIP for iPhone - Call and video chat with your Talk Out Mobile friends for free. Make cheap local or international calls to non-members
All Phone Tracker 100% HD Blogs & forums have been talking about it A LOT and it does not come as a surprise, it works great! Your friends will be speechless
Camera Dialer - Finally an easy way to dial phone numbers without actually typing the number!
Simply center the phone number in the "green box" that will appear in the camera view. Hold Still and it will then automatically dial it without any further user interaction.
This application is so accurate, you will not believe how useful it is
Hamilton Mobile Captel - Introducing the first iPhone application that makes it possible for you to see exactly what is being said to you on every call. It's called captioned telephone or CapTel. You'll still be able to listen to what you can, but with Hamilton Mobile CapTel you'll also be able to read what you can't hear