I bought the single license for my Android phone to me a year ago. The license would have been valid to 10 November. Today I got the new version for 2 units. Unfortunately, I have believed that the license be extended until after the old runtime. I was therefore the new license into my 1st unit. Now I've lost 27 calendar days since the new license is valid immediately. So, first activate the date of expiry. Otherwise Kaspersky is a very good program that I use on the PC and now on my phone and tablet.