Deco Junk vs BlueDive

CCR Junk is the decompression planner built specifically for rebreather divers. No tab-switching, no buried menus, no nonsense. Just one powerful screen with every variable you need to plan your dive. Created by CCR divers who were tired of clunky interfaces and planners that treat rebreathers as an afterthought, CCR Junk puts closed-circuit diving first. Plan any CCR dive From recreational rebreather dives to complex cave penetrations with multiple bailout scenarios — CCR Junk handles it all. Multi-level profiles, extended ranges, whatever your dive demands. Algorithms you trust Choose between Bühlmann ZHL-16C with configurable gradient factors or VPM-B. Switch between them instantly to compare profiles and pick your preferred conservatism. True CCR planning Full setpoint management throughout your dive. Track your scrubber time and know exactly where you stand. Plan with the variables that actually matter for rebreather diving. Breathe easy Real-time gas density calculations for every phase of your dive. Know exactly when you're approaching the recommended limits and plan your diluent choice accordingly. Because work of breathing matters. Bailout planning that works Plan realistic bailout scenarios for cave and overhead environments. Configure multiple bailout gases, see your gas requirements, and know you have a solid plan B. Works anywhere No internet required. Plan your dives on the boat, at the dive site, or in the middle of nowhere. Your dive data stays on your device. One screen philosophy Everything visible, everything accessible. Adjust a parameter and instantly see how it affects your profile. No switching between pages, no lost context. This is CCR dive planning the way it should be.

BlueDive lets you record, organize, and relive every dive — on iPhone, iPad, and Mac. No account required. No data collected. Your logbook, your data. Key Features - Bluetooth sync with dive computers from 20+ brands via libdivecomputer, including Shearwater, Suunto, Scubapro, Mares, and Aqualung — smart fingerprinting avoids duplicate downloads, with quick reconnect to known computers and automatic clock sync - Import from MacDive, Subsurface, Garmin FIT, UDDF, and BlueDive XML — format auto-detected, gear imported alongside dives - Export a dive as PDF, BlueDive XML, or UDDF; export your whole logbook as BlueDive XML or UDDF - Manual dive entry, with notes you can format in Markdown - Detailed dive profiles: depth, temperature, tank pressure, NDL, PPO2, decompression stops, and ceiling - GF99 and Surface GF along the profile (calculated by BlueDive, not a substitute for your dive computer), plus CCR setpoints and bailouts - Dive time to the second, as recorded by your dive computer - Each dive keeps its original units and is shown in yours - Interactive map of all your dive sites, and GPS coordinates filled in from your current location - Dive Trips — automatically grouped by the time between dives, with photo covers and trip stats - Statistics dashboard with lifetime totals, personal bests, a 12-month trends chart, and CSV export - Dive calendar heatmap - Marine life sightings with a species catalogue linked to iNaturalist - Dive photos automatically matched to the right dive, and usable as species pictures - Powerful search and filters — find dives by site, buddy, country, or tag; filter by year, country, dive type, tag, buddy, gas type, depth, rating, and marine life, including or excluding any choice - Multiple divers in one logbook - Gear management with service tracking and gear groups — add a gear group, or another dive's gear, to a dive in one step - Tank templates for quick gas configuration - Certifications and diving insurance in one place - Optional online weather from Open-Meteo - iCloud sync across iPhone, iPad, and Mac - Database backup - Widgets for the Home Screen and Mac desktop - Smart reminders for gear service, certification and insurance expiry, and dive milestones - Light and Dark mode with manual override - Available in English, French (Canada), German, Dutch, Norwegian Bokmål, and Spanish, with an in-app language choice Designed by passionate divers.