I've been using Strelok+ (paid) on my Android phone for about 6 months and it is great. I've just added Shooter (paid) but initial thoughts are that I prefer Strelok+. Both on Google Play.

https://play.google.com/store/apps/d...51bGwsMSwyLDNd

https://play.google.com/store/apps/d...290ZXJmdWxsIl0.