Fathom Dive Planner vs Dive Wise App

Fathom is a native iPhone and iPad app for dive planning and logging. Build open- and closed-circuit decompression schedules with configurable gradient factors, then record every dive you make in the built-in logbook, and link each logged dive back to the plan that produced it. Build single- or multi-level dive plans, manage your gas mixes and tanks, and review every parameter that goes into your decompression schedule before you get in the water. After the dive, capture depth, time, gases, tanks, buddies, locations, and tags in a logbook designed for the same workflow. PLANNING • Configurable gradient factors (default GF 20/85) • Multi-level dive plans with automatic gas selection • Full trimix and heliox support, in addition to air and nitrox • Closed-circuit rebreather plans: fixed setpoints with a switch depth, and travel diluent for deep dives • Open-circuit bailout schedules computed from the worst point of the dive • Repetitive dives: tissue loading, CNS, and OTU carry across surface intervals • Custom gas mixes and standard preset catalogue • Tank and cylinder tracking with SAC and per-tank gas usage • Minimum gas (rock-bottom) reserve required to bring you and your buddy back from depth • NDL (no-decompression limit) at any depth • MOD, END, and gas density for every level, with warnings when a mix gets too dense • CNS clock and OTU oxygen exposure tracking LOGBOOK • Log every dive with depth, time, gases, tanks, location, buddies, and tags • Link each logged dive to its original plan • Browse and search your dive history GENERAL • Metric and imperial units throughout • iCloud sync across your iPhone, iPad, and Mac • One purchase unlocks Fathom on iPhone, iPad, and Mac IMPORTANT Fathom is a planning tool, not a substitute for diver training, qualified instruction, or the judgment of a certified dive professional. Always follow the procedures taught in your training agency, the limits of your certification, and your own dive computer. Decompression diving carries inherent risks. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Dive Wise is a scuba dive planner, dive logbook, underwater camera, and site mapper built for divers who want one private toolkit on their phone. Plan dives, log dives fast, color-correct underwater photos and videos, map dive sites, and review your dive history without creating an account. Dive Wise is offline-first: your dive data stays on your device unless you choose to export, back up, or share it. PLAN SAFER DIVES - Build recreational or technical dive plans with NDL, gas, turn pressure, MOD, ppO2, CNS, OTU, and decompression information. - Use Buhlmann ZHL-16C with Gradient Factors or VPM-B with conservatism levels. - Plan multi-gas, multi-level, nitrox, trimix, and CCR dives. - Check range plans, gas blending, altitude settings, repetitive dives, air breaks, tides, and weather. LOG DIVES FASTER - Add a dive in seconds with a customizable quick-entry wizard. - Check in by GPS and prefill site, gear, gas, conditions, buddy, and operator details. - Detect dives automatically with compatible depth sensors. - Sync supported Shearwater computers over Bluetooth and avoid duplicate logs. - Import and export UDDF, JSON, and CSV, with full local backup and restore. CAPTURE BETTER UNDERWATER MEDIA - Use an underwater camera designed for diving, not land. - Auto-detect water type and apply real-time color correction. - Adjust correction by depth, red/magenta filters, strobes, and custom presets. - Use Pro controls such as ISO, shutter, white balance, focus, zoom, histogram, zebras, focus peaking, level, grid, compass, and safe-area overlays where supported. - Keep photos and videos grouped by dive session and linked to the matching dive log. EXPLORE YOUR DIVE HISTORY - View dives on a world map with grouped site markers. - Track stats, personal records, SAC trends, countries, buddies, and milestones. - Search your logbook with 14 filters and save presets. - Auto-group trips by country and date. - Map dive sites with waypoints, routes, depth profiles, hazards, marine life, and offline bathymetry tiles. MANAGE GEAR AND DIVE DATA - Save cylinders, gas mixes, gear templates, exposure suits, weights, and accessories. - Track equipment, certifications, buddies, operators, and maintenance reminders. - Identify and reference marine life with an offline species database. - Choose your units: meters or feet, Celsius or Fahrenheit, bar or psi, kilograms or pounds. Built by divers for divers, Dive Wise is a practical mobile toolkit for planning, logging, filming, mapping, and learning from every dive. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://divewisely.com/privacy