Spearcast

Build your dive log. Expand your understanding of the ocean. Improve faster.

Spearcast helps spearfisherman understand ocean conditions, track their dives, and learn what leads to success. Log dives in seconds — visibility, current, depth, species, and more. Spearcast automatically captures ocean and weather data so you can focus on diving, not data entry.

Turn raw data into insight. See how conditions like tide, moon phase, and water movement impact your success/failure over time.

Share visibility reports and see what other divers are reporting — without giving away your spots.

Your data stays yours. Your dive history, your insights — all in one place.