Not so positive for phones but two anti-virus systems on one unit will usually conflict. I would use one or the other but never two at a time. It just means two are running at the same time and using space. Choose one or the other but not both. You could look at Malwarebytes mobile and add that as it only comes on and scans when you want it too. Besides, two aren't going to be any more secure than one good one.
malwarebytes-anti-malware.en.softonic.com/android