This is the trial version of Caller ID Voice. The trial allows full access to all features for 7 Days. After 7 days the trial will end. Anytime during or after the trial you may purchase the full version, for best results you should uninstall the trial version then install the full version. With Caller ID Voice you are now able to hear who is calling. No need to fumble around for your phone just to find out someone you don't want to talk to is calling.Caller ID Voice uses your phones full voice capabilities to tell you who is calling.Caller ID Voice is great for hands free driving, now you can listen and decide if its worth answering the phone.You will find many useful options in the settings menu:- Repeat caller info- Repeat interval- Customize Messages for Unknown numbers and preannouncement- Announce contact name or phone number- Change Voice speed and pitchWorks great on Samsung Galaxy S3If you have any problems please email us directly at ruffledtomato@gmail.com, support is top notch and will get back to you right away.