ZDive

ZDive transforms your Apple Watch into a smart dive companion with comprehensive iOS analytics. Whether you're snorkeling in tropical waters or logging recreational scuba dives, ZDive provides the tools you need for safe and memorable underwater adventures.

APPLE WATCH — YOUR DIVE COMPANION

Real-time dive tracking with automatic water submersion detection on Apple Watch Ultra (manual controls on other models)
Rich sensor integration: depth, temperature, heart rate, compass, ambient pressure
Scuba and snorkeling modes with Digital Crown navigation
Industry-standard Bühlmann ZH-L16C decompression algorithm — the same model used by leading dive computers
Real-time NDL calculations and safety stop monitoring
Dive simulation mode: practice with realistic training scenarios
Crash-safe recording: in-progress dives are checkpointed and automatically recovered
GPS route tracking with breadcrumb trails
Altitude diving support with automatic calibration
Note: due to Apple's current API restrictions, live depth readings on Apple Watch are limited to about 6 meters. Deeper dives recorded with Apple's Depth app can be imported via HealthKit for full analysis.

iOS APP — ADVANCED ANALYTICS & PLANNING

Beautiful dive trends dashboard with period comparisons and personal records
Interactive dive profile charts and sensor data visualization
Diver profile with certifications and emergency contacts
Import historical dives from Apple Health — duplicates are detected automatically
Export dives in JSON and UDDF formats for other dive log software
COMPREHENSIVE DIVE PLANNING SUITE

Multi-Day Trip Planner with surface interval calculations
Gas Planning Calculator: SAC rates, Nitrox optimizer, and a Trimix reference calculator
Equipment Packing Lists with pre-built templates
No-Decompression Planner with altitude compensation
Interactive Decompression Tables: Bühlmann and PADI RDP
PROFESSIONAL BREATHING TRAINER

10 breathing techniques: box breathing, 4-7-8, diaphragmatic
Freediving-specific CO2 and O2 tolerance tables
Wim Hof Method and tactical breathing patterns
LIVE ACTIVITIES & WIDGETS

Real-time tissue loading on Lock Screen and Dynamic Island
No-fly time countdowns with maximum altitude restrictions
Surface interval tracking between dives
SAFETY & RELIABILITY

16-compartment tissue tracking with 6 conservatism levels
Configurable safety stops (3–6 m depth, 3–7 minutes)
Ascent rate monitoring with visual and haptic warnings
Sensor data validation to filter spikes and false readings
Automatic CloudKit backup and sync across devices
Offline functionality with background synchronization
SEAMLESS DATA MANAGEMENT

Fast Watch-to-iPhone sync with optimized compression
HealthKit integration for comprehensive health tracking
Manual and automatic sync options with bulk import/export
Try it instantly with a built-in demo dive — no gear required
MULTI-LANGUAGE SUPPORT
Available in English, Turkish, Chinese (Simplified), Russian, Spanish, Portuguese, Japanese, Arabic, French, Hindi, Bengali

SUPPORTED DEVICES

Apple Watch running watchOS 10.6 or later (Series 6 and later, SE, and Ultra)
Apple Watch Ultra recommended: automatic submersion detection and enhanced diving sensors
iPhone with iOS 17.6 or later, full iPad support for planning and analysis
ZDive is free to use and supported by ads.

Whether you're exploring coral reefs on a snorkel or logging recreational scuba dives, ZDive provides professional-grade planning and analysis tools in an intuitive interface.

Note: ZDive is intended for recreational use as a dive companion and tracker, not as a certified dive computer. Always dive with certified diving equipment and follow proper safety protocols. Never rely solely on consumer devices for critical diving decisions.

Join ZDive to enhance your underwater adventures. Dive deeper, plan smarter, and explore safely with ZDive.