GhostSprint

GhostSprint is a mobile AR time-trial runner where you sprint (or jog) in the real world and race a “ghost” replay of your previous route. The game turns any sidewalk, park loop, or campus path into a track: you pick a distance (200m–2km), start the countdown, and the app overlays your ghost line and split times using GPS + inertial sensors. Daily challenges and local leaderboards keep it competitive without needing expensive wearables. It’s designed for quick sessions: 5–10 minutes, no setup, no gym. Monetization is realistic: free core gameplay, with a subscription for advanced analytics, training plans, and premium challenge packs; plus cosmetic trails and seasonal events. It’s not a miracle fitness product—accuracy varies by phone and location—but it’s genuinely fun when it works and can build habit through rivalry with yourself and nearby players.