Yes, they will conflict with each other as both utilities are trying to do the same thing. If you're trying to make your phone less functional, this will be a good way to do it. But I tend to agree with
@Dannydet I wouldn't bother installing even one of them, unless you're actually having a problem. To have an app just running multiple processes in the background for no valid reason is just wasting your phone's system resources. Developers for anti-virus apps will of course imply that you have to have one of their products installed on your device, as does a lot of the tech media. This typically is based on Windows-centric reasoning, conveniently leaving out the fact that Windows-based exploits don't and can't affect other operating systems.
Your best option to secure your phone is your own online habits. The odds your phone will get 'hacked' is pretty low, with the much greater likelihood will be some weakness tied to one of your online services. Your email account or your Facebook account, or whatever are the big targets now, not some mythical Android virus on your phone. As for malware in general however, that is a problem for anyone with any kind of online presence. So it's not so much your phone itself will be directly compromised but rather the online accounts that you might be using on your phone -- an example being, if your Facebook account gets hacked into and taken over, even if you just delete the Facebook app on your phone this doesn't fix the problem as you'll still need to take active steps to regain control of your actual online Facebook account.
Use two-factor authentication for your online services that have it (most do now), and be particularly focused on securing your email account, since most of your other online services will in some way rely on your email address as an interactive identification. That's a common target so if some moron does get access to your email account, that often opens up access to your other online services.
https://www.computerworld.com/article/3268904/android/android-security-facts.html
