Hikers, climbers, and outdoor adventurers often venture beyond cellular coverage but still need detailed maps. Mainstream apps prioritize online features.
Create an app with downloadable region packs, topographic details, and route planning that works entirely offline.
Charge through one-time purchases of region packs or premium features.
MVP could focus on one activity (e.g., hiking) in one region.
Risk: Competing with free options like OpenStreetMap clients.