Thanks for your interest in helping to test Smart Caller. If you signup for our mailing list you can volunteer to help test new releases of Smart Caller before they are submitted to the app store, and/or volunteer to test calling cards from your country to check if the access numbers are working and we have the settings correct.

Testing Smart Caller Releases: Testing early releases involves us making a special build of the app, and sending it to you, then you install it using iTunes. To make the special build for you we need a number from your iPhone called the UDID. Here are detailed instructions.