"AudioPLUS" is a demoware. Since you've tried a demo program, you know whether it will meet your needs before you pay for it. You can try "AudioPLUS" for free with some restrictions - the playback time is limited up to 60 seconds for each file. If you decide to continue using "AudioPLUS" without any restrictions, you are expected to buy it. The initial purchase includes one year of free updates and free technical support by e-mail. If you have several PC's at home, you can use this software on any computer at home without to pay any additional licence fee (only a single licence is needed for home usage). For corporate usage in office, a per PC licence required for each PC. To order on-line you can use highly secure order processing provided by ShareIt! or Plimus. It is 100% safe and secure. Your Card number will be encrypted at the maximum level allowed (SSL 128 bits). We don't even have access to your card number.