Dive Kit vs DecoPlan

The deco planner built for technical divers, plus eleven free tools for everyone on the boat. Dive Kit is a scuba deco planner for open-circuit, trimix and CCR dives on Bühlmann ZH-L16C with your gradient factors. It shows what every what-if costs: deeper, longer, a lost gas, a bailout from any point in the dive. Big type for direct sun, big targets for wet hands, routine tasks in seconds. Deco Planner (Pro) - Multi-level profiles with the deco woven around your levels: stops between levels when the plan needs them, gas switches placed where the PPO₂ allows - Gradient factors, last stop, ascent rates, air breaks, stop rounding (1 min, 30 s or 1 s) and PPO₂ bands per gas, all set per plan - Contingency tabs: deeper, longer, lost gas, or build your own. Each shows the extra run time, TTS and CNS against the base plan - Modifiers: working and deco SRMV and a delay at depth, on the base plan or on one contingency - CCR: setpoint schedules by depth, diluent switches, dilout, and open-circuit bailout from the end of the profile, after any level, at a run time or on ascent - Gas per cylinder: remaining pressure at each stop, a reserve per cylinder, ascent pressure, and what happens when a cylinder runs dry - Live warnings with the number and the limit: PPO₂, END, gas density, CNS, OTU, hypoxia, reserve - Repetitive dives, with tissue loading carried over the surface interval - Plan variants, overlaid on one graph - Share by QR code or link, no purchase needed to read it. Export the table or a slate image Eleven Free Tools No ads, nothing behind a sign-up. - Best Mix: nitrox and trimix by MOD, helium picked by END, with narcotic and density limits - Gas Specs: EAD, PPO₂, END and gas density with color-coded warnings - Gas Usage: multi-level consumption, turn pressure, thirds to sixths - SAC/SRMV: your real breathing rate from a dive; for twinsets and sidemount, enter the combined cylinder volume - Buoyancy: weighting from suit, body, gear and water, with lift and overweighting advisories - Blender: partial-pressure and continuous blending with real-gas corrections and expected analyzer readings - Mix Result: what a top-up or a decant actually gives you - Checklists: your own pre-dive routines and rebreather presets, with timers that survive closing the app - Cylinders, Converter, Signals. Cylinders named the way you buy them: AL80 at 3000 psi, or litres Reference & Learning - 90+ illustrated, searchable dive signals and 35+ cylinder specifications - Tutorials on gas physics, decompression theory and trimix, and help on key results Certification Wallet 25+ agencies, 190+ certifications, and a diver profile that holds your dive insurance details. Built for the Boat - Fully offline, on phones and tablets - Eight languages: English, German, Turkish, Swedish, Russian, Polish, Simplified Chinese, Korean - Light, dark and automatic themes No account. Your dive data stays on your device. Usage analytics and crash reports are optional and can be switched off in Settings. Pricing The Deco Planner is the only paid tool: a one-time lifetime purchase or a subscription. Everything else is free, for everyone. Warning and Disclaimer Dive Kit is a reference and planning aid for trained divers, and that covers all its tools. It is not a dive computer and not a substitute for training. The deco planner is for divers trained in decompression diving, and gas blending is for trained blenders. Results can be wrong, so check every result against a second source. Dive Kit is provided as is, and you use it at your own risk. Warning and disclaimer: https://divekit.app/safety/ Terms of Use: https://divekit.app/terms/ Privacy Policy: https://divekit.app/privacy-policy/ Apple EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

DecoPlan is a universal dive planner for open-circuit and rebreather (CCR) divers, built around two published decompression models: VPM-B with the critical-volume algorithm and Bühlmann ZHL-16C with gradient factors. NO-DECO PLANNER • No-decompression limits for air and nitrox, safety stop, gas needed • Repetitive dives with surface intervals, altitude and fresh water • NDL table for every mix at a glance TECHNICAL PLANNER • Multi-level profiles, any number of gases (nitrox, trimix, oxygen) • Automatic deco-gas switches by ppO₂, last stop at 3 or 6 m, air breaks on O₂ • Runtime table with ppO₂, END, ceiling; depth profile with the ceiling band • Tissue loading graph, CNS/OTU, gas consumption per cylinder, minimum gas, turn pressure • Model comparison: the same dive through six model settings side by side • Contingency grid: what happens 3/6/9 m deeper or 5/10/15 min longer • Lost-gas scenarios, wet-notes text export REBREATHER (CCR) · PRO • Setpoints for bottom and deco, setpoint switching by depth • Diluent plus up to ten bailout cylinders with their own mixes • Open-circuit bailout: a failure at the turn point (half the bottom time) with the swim back, or at the end of the bottom time • Bailout advisor: how many cylinders, which mixes, switch depths and sizes for the planned depth TOOLS • MOD, END, EAD, gas density, best mix, partial-pressure blending, SAC calculator Six languages: English, Russian, German, Spanish, Simplified and Traditional Chinese. All features, including the Pro feature set (CCR and SCR, VPM-B and VPM-B/GFS, multi-level profiles, more than two deco gases, oxygen breaks, contingency and lost-gas plans, model comparison, team planning, sync between devices), are free for 30 days from download, or from first launch if the download date is unavailable. No in-app purchase or subscription can be bought at this time, and the app contains no advertising. A genuine paid annual subscription continues until the end of the term already paid for, and a lifetime purchase remains valid. Any other access previously granted to an existing account is honored only for the period already granted and does not become unlimited. Existing plans, dive logs, equipment, trips, photos and account data are preserved. IMPORTANT DecoPlan is a planning tool for trained divers. Every decompression model is an approximation; verify plans with another planner and your dive computer, keep gas reserves, and never dive beyond your training. The app is not a medical device and does not guarantee safety. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://decoplan.dvpdnsca.org/privacy.html © 2026 Dmitri Plotnikov (dvp)