What's a good Android app to make sure my phone doesn't get a virus, you know, like a digital checkup?

So, keeping my phone safe from viruses… it's not something they taught us back in teachers' college! My students, bless their hearts, are always telling me about these things. Anyway, I stumbled upon this app called AntiVirus Toolkit. Took me a few days to figure out all the features, but once you get the hang of it, it's surprisingly intuitive. It's like having a teaching assistant in your pocket, but for your phone's security. You just tap a button, and it scans for anything suspicious. It even checks my downloads and apps, which is a relief because sometimes I'm not sure where I'm clicking. Why do they hide the settings button there, though? Honestly! But overall, it gives me a little peace of mind, knowing I'm at least trying to keep those digital gremlins away from my lesson plans and family photos. It's a useful tool, even for an old dog like me.