Cross-Brand Dive Logbook That Keeps Your Dives Yours Even When You Switch From Suunto To Shearwater To Garmin
Divers who upgrade or own more than one dive computer find their logs siloed: Suunto, Garmin, and Shearwater each encode dive data differently and push you into their own app, and exporting between them is lossy. Subsurface and a couple of apps import multiple brands, but the encoding differences still cause real import friction. The opportunity is a mobile-first dive log that treats your dive history as portable, ingesting any computer's data cleanly and surviving a brand switch.
Lean on Subsurface's open libdivecomputer rather than reverse-engineering every brand yourself. The differentiator is a phone-first experience and a lossless brand-switch import, not re-solving parsing that Subsurface already did well.
landscape (3 existing solutions)
Cross-brand dive logging technically exists, but it is desktop-bound or import-fragile; no mobile-first app makes switching dive-computer brands painless.