Entertaining enough as a standard-issue horror movie with ridiculous premise. 100% of the horror is the "booga booga booga look at this scary face jump scare!" variety.
I do appreciate extra-silly gimmicks like an evil phone death app. They explain in the movie there is a Latin curse embedded in the Countdown app code. It makes me wonder if that curse is stored in the Java code as commentary or if the app was written was some sort of new…