App the Horror (2026) is a Horror, Thriller film that follows when the app is launched, a ghost appears. Developed by four young adults, the app becomes the centerpiece of a livestream where they venture into a supposedly haunted mountain to prove its authenticity—only to meet a grim fate. App the Horror is not currently listed with streaming providers in your selected region, but availability can change over time. It has a user rating of 5.0 out of 10 from 3 votes. Fans of horror movies may also want to explore similar titles below.