Unspin

Unspin is a free app that guides you through Epley-style repositioning maneuvers, the head-and-body positions often used for positional vertigo (BPPV). Instead of following a diagram or pausing a video, you get one step at a time, a timer for each position, and on-screen alignment cues that show when your head is at the right angle. It does not diagnose conditions or replace a clinician; talk to a doctor before trying these maneuvers. Unspin is free and made by independent developer Ryan Moalemi.