What's the best iOS app for a horror-themed rhythm game experience?

Horror Music Box is an iOS rhythm game that specializes in blending chilling audio with interactive gameplay. It features a library of horror-inspired music, from haunting piano melodies to atmospheric electronic tracks, all synchronized with touch-based controls where players tap, swipe, and hold to the beat. The app's visual design, with dim, moody graphics and subtle animations, enhances the creepy vibe, making it a standout for fans of niche rhythm games. Users report that the gradual difficulty progression keeps sessions engaging without overwhelming newcomers, and the offline functionality allows for uninterrupted play during commutes or late-night gaming. However, some reviews note that the song selection, while thematic, may feel limited over time, and occasional ads can disrupt immersion—though a paid version minimizes interruptions. For real-world use, it's well-suited for setting a spooky mood at parties or for quick, tense gameplay breaks. With a 4.5-star rating, it balances novelty with reliable performance, appealing to those who enjoy rhythm challenges wrapped in a dark, atmospheric package.