Nitrox Buddy vs Logporter

Nitrox Buddy is a no-frills calculator app for nitrox/enriched air divers - use it to quickly calculate the most important data for your dive: Maximum Operating Depth/MOD, Equivalent Air Depth/EAD, Best Mix and PPO2. The app works with imperial or metric measurements, sea or fresh water, and allows you to select the maximum oxygen content and partial pressure. A companion watch app puts lets you perform all these calculations on your wrist.

Logporter is the fastest, seamless bridge designed for Apple Watch Ultra scuba divers to export their dive logs directly into the official MySSI logbook app via high-contrast QR codes. No cloud uploads, no third-party accounts, and zero file hassle. Everything is processed 100% locally and securely on your device. 【Key Features】 ◆ HealthKit Direct Sync: Read depth profiles, water temperature, heart rate, and dive duration directly from Apple Watch Ultra and Oceanic+. ◆ Standalone Apple Watch QR: Generate and display high-contrast, full-screen QR codes directly on your Apple Watch Ultra sapphire glass. Scan straight from your wrist into MySSI without taking out your iPhone! ◆ Automatic SSI Dive Site Matching: Automatically links your dive entry/exit GPS coordinates with official SSI dive sites and enriches environment data (weather, air temp, visibility). ◆ Dynamic Average Depth & Profile Charts: Visualizes your dive track with interactive depth, temperature, and heart rate charts, automatically calculating accurate average depth. ◆ Privacy-First Local Architecture: Zero cloud databases. Your dive logs and biometric data never leave your devices.