DiveCore: Dive Computer

All Pro features are FREE until the end of 2026! Dive smarter and safer with Apple Watch Ultra — no subscription needed for now.

DiveCore — Dive Computer for Apple Watch Ultra

DiveCore turns your Apple Watch Ultra into a full-featured scuba dive computer, with a companion iPhone app for logging and AI-powered analysis. Built on the trusted Bühlmann ZHL-16C decompression model, it shows the information that matters underwater — clearly, and at a glance.

ON YOUR WRIST • Real-time depth, dive time and water temperature • No-decompression limit (NDL) and time-to-surface (TTS) • Safety-stop guidance with a clear countdown • Ascent-rate monitoring with haptic alarms • Adjustable conservatism (Gradient Factors) • Nitrox / enriched-air support • Heart rate throughout your dive

AFTER THE DIVE • Automatic dive logbook • AI dive analysis with a performance score and personalized insights • 3D replay of your dive route • No-fly time guidance based on DAN/UHMS recommendations

DESIGNED FOR APPLE WATCH ULTRA • A clean, high-contrast display you can read underwater • Works fully offline — no phone or signal needed during a dive • Syncs securely to iPhone and iCloud • Integrates with Apple Health

FREE FOR A LIMITED TIME All Pro features are free until the end of 2026 — no subscription required for now. Dive smarter, right from your wrist.

IMPORTANT SAFETY INFORMATION DiveCore is a supplementary tool for trained, certified divers. It is not a substitute for proper training, dive tables or a backup dive computer. Always dive within the limits of your training and certification, follow your primary dive computer, and carry a redundant device. Diving carries inherent risks, including serious injury or death.