Dive Kit vs DiveHub

A full deco planner in your pocket, and a free toolkit for the rest of the dive. Dive Kit plans open-circuit, trimix, and CCR dives with Bühlmann ZH-L16C and the gradient factors you choose. You see every assumption behind a schedule, and a share link reopens the exact plan on your buddy's phone or in any browser. Everything runs offline. The display stays readable in direct sun, the controls suit cold, wet hands, and routine tasks take seconds. DECO PLANNER (PREMIUM) The one tool you pay for. - Multi-level profiles with automatic gas switching and unlimited segments - CCR: depth-keyed setpoint schedules, diluent switches during deco, and a full open-circuit bailout from any point in the dive - Stop times to the second (MM'SS"), or rounded to the minute or 30 seconds; the table always matches the engine - PPO₂ caps per gas by O₂ content (lean, mid, rich bands), so each gas switches in where its PPO₂ allows - Contingencies: deeper, longer, lost gas, or build your own - Per-stop PPO₂, CNS% and OTU, gas density, and consumption per cylinder with reserve warnings - Oxygen breaks on long O₂ stops - Repetitive dives with tissue loading carried across the surface interval - Share by QR code or link; every setting travels with the plan - Export deco tables and printable slate images - Compare plan variants side by side with graph overlays ELEVEN FREE TOOLS No ads, nothing behind a sign-up. - Best Mix / MOD: nitrox and trimix, helium chosen by END, with oxygen-narcotic and density limits - Gas Analyzer: EAD, PPO₂, END, and gas density with color-coded warnings - Gas Usage: multi-level consumption, rule of thirds or sixths - SRMV / SAC: your real breathing rate from a logged dive, doubles and sidemount included - Buoyancy & Weight: weighting from suit, body, gear, and water type, with lift and overweighting advisories - Gas Blender: partial-pressure and continuous blending with real-gas corrections and expected analyzer readings - Checklists: build your own pre-dive routines, with timers that survive closing the app - Mix Result, Unit Converter, and more - Cylinders entered the way you name them: 80 cu ft at 3000 psi in imperial, litres in metric REFERENCE & LEARNING - 90+ illustrated, searchable dive signals - 35+ cylinder specifications from real manufacturer data - Tutorials on gas physics, decompression theory, and trimix - Tap any result for what it means and why it matters CERTIFICATION WALLET 25+ agencies, 190+ certifications, and a diver profile with insurance and emergency contacts. BUILT FOR THE BOAT - Fully offline, on phones and tablets - Exact decimal math in every gas number - Seven languages: English, German, Turkish, Swedish, Russian, Polish, Simplified Chinese - Light, dark, and automatic themes No ads. No account. Your dive data stays on your device, and the optional usage analytics can be switched off in Settings. Dive Kit helps you plan and check your numbers. It does not replace training, certification, or your own judgment in the water. Analyze your gas, dive within your limits, and plan conservatively. PRICING The Deco Planner is the only paid tool: a one-time lifetime purchase or a subscription. Everything else is free, for everyone. Built by a technical diver, shaped by recreational, trimix, and rebreather divers, and instructors. Privacy Policy: https://divekit.app/privacy-policy/ Terms of Service: https://divekit.app/terms/ Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

EDUCATIONAL PURPOSE ONLY - NOT FOR REAL DIVE PLANNING DiveHub is a fan project created to help divers learn and understand decompression theory. This app implements the Bühlmann ZH-L16C algorithm with gradient factors, but lacks many features required for safe, real-world dive planning. Key Features: • Bühlmann ZH-L16C Decompression Algorithm • Gradient Factor support (customizable GF Low/High) • Open Circuit (OC) multi-gas planning • Closed Circuit Rebreather (CCR) support with bailout planning • Multiple decompression gases • Real-time dive profile visualization • Equivalent Narcotic Depth (END) calculations • Gas density monitoring with safety thresholds • Time To Surface (TTS) calculations • Customizable ascent/descent rates • Altitude diving support with custom surface pressure • Fresh water and salt water density options • Save and manage multiple dive plans • Some level of Gas Planning • BLE Nitrox Analyzer Not included features: • Complete Gas planning feature • ICBD warning, HPNS warning • etc. Technical Diving Concepts: Learn about decompression stops, tissue compartment loading, gas switching protocols, ppO2 limits, Maximum Operating Depth (MOD), CNS oxygen toxicity tracking, and CCR bailout planning. Important Safety Notice: This app is for educational purposes only. It does not account for all physiological factors, environmental conditions, or emergency scenarios. You must be properly trained in decompression theory and dive planning. Only dive within your certified training level. All dives carry risk of Decompression Sickness (DCS), which can cause serious injury or death. The developers are not responsible for any injuries or incidents resulting from using this application. You assume all risks associated with diving. Requirements: • Full understanding of diving terms and decompression theory • Proper dive training and certification • Use alongside professional dive computers and planning tools