App the Horror (2026): cast, story & where to watch
2026 · Film · ★ 5
Released in 2026, App the Horror is a horror and thriller film directed by Hyung Seul-woo, running about 88 minutes.
What it’s about. 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.
Who’s in it. App the Horror stars Kim Young-jae as Dong-ju, Kim Ju-a as Han-byeol, Yang Jo-a as Sun-young and Kim Hee-jung as Na-yeon, among others.
How it landed. With an audience score of 5.0/10, App the Horror has proved divisive with audiences.
Where to watch. Streaming options change often. See the full, country-by-country breakdown on our where to watch App the Horror page.
If you liked it. Fans of App the Horror tend to enjoy Psycho, The Silence of the Lambs, The Shining and Alien.
Frequently asked
- Where can I watch App the Horror (2026)?
- Streaming, rental and purchase options for App the Horror change frequently. Check our where-to-watch page for the latest availability in your country.
- Is App the Horror worth watching?
- App the Horror holds an audience score of 5.0 out of 10, and is a strong pick if you enjoy horror and thriller. Reactions are mixed, so it may depend on taste.
- Who stars in App the Horror?
- App the Horror stars Kim Young-jae, Kim Ju-a, Yang Jo-a, Kim Hee-jung and Park Seo-ji.
- When was App the Horror released?
- App the Horror was released in 2026, with a runtime of about 88 minutes.