Reception

The film was not screened for, and was panned by critics. Based on 44 reviews by Rotten Tomatoes, the film currently holds an approval rating of 7% with the consensus stating "The Devil Inside is a cheap, choppy unscary mess, featuring one of the worst endings in recent memory."  Peter Howell of the Toronto Star felt that the film is already a candidate for the worst film of 2012.  Stephen Witty of The Star-Ledger opined that "after The Blair Witch Project got by with sticks and stones and offscreen noises, filmmakers started thinking they didn’t have to show anything. Well, no. It's better when you don't show too much – but if your story is about the supernatural, eventually you're going to have to come up with something.The Devil Inside can’t." Michael Phillips of the Chicago Tribune felt that the film "joins a long, woozy-camera parade of found-footage scare pictures, among them The Blair Witch Project, the Paranormal Activity films and certain wedding videos that won't go away." Michael Rechtshaffen of the Hollywood Reporter stated that the film "proves as scary and unsettling as a slab of devil's food cake - only considerably less satisfying.

Outside of all the negative reviews, some critics were able to give the film a "thumbs up". Steve "Uncle Creepy" Barton of Dread Central had a positive review of the film stating, "The Devil Inside is home to moments that will shock, scare, disturb, and leave you gasping. It's a trip to the dark side that's well worth taking." Joey Leydon of Variety felt that the film "generates a fair amount of suspense during sizable swaths of its familiar but serviceable exorcism-centric scenario."