I am currently using Kaspersky Internet Security. I have been using them for a long while on my families and friends computers with no issues. So when a friend suggested to use it on the phone I installed it and I haven't had any issues since I purchased my s7 a couple months ago. My buddy is using it on an s5 and has no issue with how it runs there at all. I'm very satisfied with the performance and security. Definitely recommend for your phone and pc, 1 box does 3 devices.
I usually buy them on boxing day for $19-$24 for a year or 18 months.
Good luck and enjoy
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