I use one by Malwarebytes called "Malwarebytes Security: Virus Cleaner, Anti-Malware". I haven't tried a lot of different ones, but it was able to detect and remove a virus that I installed by mistake so I'm happy with their service.
A number of free Anti-Virus can be found on play store that can be installed easily on your device to protect your smartphones, but in reality, companies trick us by saying that they are providing free version, let's put a light here! Not all features and protection will be provided free but some, A reputed and the big company like "Kaspersky" "Norton" so on, would never allow you to use their services without paying anything, but of course, I have something for you that can really help you out.. and you don't need to pay for it. The first Anti-Virus I would offer you to install is "BitDefender Anti-Virus" it's freefor android and works really well, not only viruses, but it would secure phone from spyware, malware, and ransomware, not only this but it supports real-time scan. just for it, others Anti-Virus like "Avira", "ESET", "Mcafee" are the better options but not all features will be free to use.
I recommend Malwarebytes. I have been using this Anti-Virus for all of my former android phones, and it's been nothing but fantastic defense against malware, viruses, and other unwanted adware. It's free, and there is an option to upgrade, which gives the device more enhanced protection.
There are different anti virus you can use for your phone Andi think the one that will be most suitable for you still remains Malwarebytes which is very sophisticated and easy to use to tackle any form of attack that is coming to your phone
There are many anti virus you can use on your phone,but for me,i have downloaded so many of them,none is working positively,my friend reffered me to malwarebytes,i downloaded it yesterday i think this is the best anti virus application so far, because it speed up my phone,save my battery and lots more
Concerning best free antivirus for Android. Well, I think people have already answered the question by installing Malwarebytes, you phone should be free from viruses, I personally don't have an antivirus application on my phone because i feel they are not that effective at times. Will try out this Malwarebytes
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