Subsurface vs Logporter

Subsurface-mobile is an iOS dive log application based on Subsurface, the best free open source dive log application available on Windows, Mac and Linux. Subsurface-mobile allows you to access your dive log on your tablet or phone, edit the data and even download new dive information from many Bluetooth LE enabled dive computers. Using a free Subsurface Cloud Storage account you can synchronize your dive data with the Subsurface desktop application (while significantly increasing the usefulness, the cloud account is not required to use Subsurface-mobile). To get support from the developers, please use the in-app menu entry "Ask for support" Please check out the Subsurface-mobile user manual: https://subsurface-divelog.org/documentation/subsurface-mobile-v3-user-manual (also available from within the app) Subsurface-mobile is free and open source. No ads, no commercial anything. And it comes with free cloud storage (if you decide to use that - it's optional). Your data aren't used for anything, nothing gets monetized.

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.