Hang - Spontaneous Activities is an iPhone application developed by Tiger Software LLC, available for free in the Social & Communication category, specifically under Social networking. The app aims to facilitate finding safe and enjoyable activities in your vicinity for users who enjoy going out.

With Hang, users can create "Hangs," which are spontaneous outings that nearby users can join instantly. The app emphasizes safety through its Safety Selfie feature, requiring all users to take and upload a recent selfie with a mask on when creating or joining a Hang. This ensures that participants can see genuine and up-to-date selfies of everyone attending, promoting a secure social experience.