Spent the last six months building HeadPause because there wasn't a good iPhone app for at-home BPPV exercises.
AirPods track your head. The app walks you through Epley, Semont, Brandt-Daroff. Voice paces it. Calm score at the end.
Four full modules: Balance, Still, Motion, Ring. $19.99 one-time, no subscription. Nothing leaves your phone.
Walkthrough + story: gmx3c.com/products/headpause
Would mean a lot if you tried it.