Phobias 500 Scary Encyclopedia is a free iPhone app developed by Michael Quach in the Education & Reference category, specifically under Books. The app offers a collection of 500 phobias and their definitions, catering to those intrigued by fears that make hearts pound and spines tingle with terror. With a user-friendly interface, simply tap on the question mark to unveil the meaning behind each phobia.

Users can save their favorite phobias, share them via Email, SMS, or post them directly to Facebook. The app has garnered praise from loyal users who find it both fun and educational, discovering phobias they never knew existed. With no requirement for an internet connection, users can enjoy exploring phobias at their convenience.