Everything DiveOne offers
Straightforward dive tracking tools designed for clarity and reliability.
Offline-First
Record dives without cellular or WiFi. Data syncs to your iPhone when you surface and reconnect.
Depth Tracking
Continuous depth recording using the Apple Watch Ultra built-in depth gauge, up to 40 meters.
Safety Stop Reminders
Configurable safety stop timer with haptic vibration and visual countdown on your wrist.
Dive Journal
Automatic logging of every dive: depth profile, duration, water temperature, and GPS entry point.
HealthKit Sync
Dive sessions appear in Apple Health alongside your workouts and other fitness data.
Privacy-First Storage
All data stored locally on your iPhone. No mandatory accounts, no cloud dependency, no third-party tracking.
Water Temperature
Continuous water temperature recording with ±0.5°C accuracy using the Apple Watch Ultra sensor.
GPS Entry Point
Automatically records your GPS coordinates when you start a dive, so you can find your spots again.
Data Export
Export your dive history to CSV format at any time. Your data belongs to you.
Built for Apple Watch Ultra
DiveOne leverages the depth gauge and water temperature sensor exclusive to Apple Watch Ultra and Ultra 2.