We are providing our software for your trial. You can download the software from your site directly and see that it works or not. We don't believe in taking money without customer satisfaction. Once you try the software and you see that it works then you can easily buy the software from the cart link in the demo software itself.
You just have to backup your iphone data with the demo version and you will be able to see the backup file. Once you are satisfied click on the cart button and you can register you copy of software License.