DiveCast vs Interval

DiveCast is a dynamic dive planning tool built for technical divers who need accurate, real-time decompression and gas planning — on the boat, at the dive site, or at home. KEY FEATURES • Real-time dive profile planning with live decompression calculations (Bühlmann ZHL-16 with gradient factors) • Full gas planning: bottom, deco, and diluent gas mixes with MOD, density, and no-decompression limits calculated automatically • CNS and OTU oxygen toxicity tracking alongside your deco stop schedule • Gas Library — save and reuse your standard gas configurations, synced across devices when signed in • Stress scenario modeling — instantly rescale SAC and ascent rates for elevated-exertion or emergency conditions • Supports open-circuit, closed-circuit (rebreather), and bailout planning • Consecutive dive planning that carries over tissue loading from your previous dive • Configurable ascent/descent rates, SMB deployment drift, and surface planning parameters • Fully usable offline for planning dives up to 30m, no account required. Full planning access — including deeper technical dives — requires signing in as a verified technical diver, which also unlocks cloud sync across devices DiveCast is built for certified technical divers with training in decompression theory and gas management. It is a planning aid, not a substitute for training, certification, or dive computer verification — always cross-check dive plans against your training and equipment before diving.

Your dives, beautifully remembered. Interval is a personal dive logbook for life underwater. Bring your recorded dive profiles, photos and memories together, then revisit them across your Apple devices. Free, with no subscriptions. IMPORT FROM YOUR DIVE COMPUTER. Bring recorded dives into Interval from a compatible dive computer in just a few taps. Support varies by model and connection. EXPLORE THE PROFILE. MOMENT BY MOMENT. Follow the descent and the way back up. Inspect depth, temperature and the other measurements your computer recorded, moment by moment. PHOTOS, NOTES AND DIVE BUDDIES. Add photos, videos, notes, tags and buddies to every dive. Record conditions and equipment, then choose a favourite moment as the cover. SEE YOUR STATISTICS AT A GLANCE. Look back on your dives, explore your statistics and see your time underwater add up. Return to favourite sites and see where you’ve dived on the map. FIND ANSWERS WITH APPLE INTELLIGENCE. Scan your dive logs with Apple Intelligence to find the answers you’re looking for. Beta. Requires Apple Intelligence on iOS 27, iPadOS 27 or macOS 27. ONE LOGBOOK, KEPT IN SYNC. Your dives, kept in sync across iPhone, iPad, Mac, Apple Watch and Apple TV through your own private iCloud. PRIVATE BY DESIGN. Interval has no accounts. No analytics, telemetry, advertising identifiers or tracking. YOUR LOGBOOK GOES WITH YOU. Share dive records with friends, or export your logbook as UDDF whenever you want. Free. No subscriptions. Just diving.