No. Coinomi was just caught last week with a newbish mistake. Just google for: coinomi security flaw
A good smartphone wallet is Mycelium.
And yes, especially if you are not great at tech, a hardware wallet can be a savior.
I read about it.
But as I read, it was a desktop only flaw. They sent data to Google or something like that.
Yes mycelium is much better you are right
Oops, again caught? Coinimi was still my favorite wallet. Samsung Galaxy S10 is told to get a Bitcoin wallet. Am not sure, which solution they offer, a kind of implementet hardware wallet or just a default app. Back to the topic: No, doesn't help, but wouldn't be a mistake to have a security app. My favorite is Sophos Mobile Security cause its free, quick and complete.