Running on my PC without any problems and I feel with Kaspersky (this is already my 3rd version) very safe. So I wanted to use this also for my smartphone. But nowhere a hint how I can install the version on my phone. After much googling etc, I've done it, but my phone can hardly be used, since it is now constantly hangs and memory is insufficient. So useful, not for any smartphone, but highly recommended for the PC.