arisdroid
Prominent
NightAntilli :
A free version is good enough. I use CM Security.
https
/play.google.com/store/apps/details?id=com.cleanmaster.security&hl=en
https
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To tell the truth, I have used this antivirus on several smartphones and it really seems to me an excellent option to protect the device, but the problem that I have noticed, both on tablets and smartphones, is that it usually slows down the device. At least, it's what has happened to me the times I've used it.
I recommend installing it and see how it runs on your computers, because of not slowing down the device is good free option.