Subsurface vs Nautiq

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.

Nautiq is the officially endorsed companion app for the Deep6 Excursion dive computer. Built from the ground up for iPhone, Nautiq connects to your Excursion via Bluetooth LE to download dive profiles, manage device settings, and update firmware — features no other iOS app delivers. SYNC YOUR DIVES Connect your Excursion in Sync mode and Nautiq downloads your dive profiles automatically. View detailed depth profiles, temperature data, decompression status, gas mixes, and more. Supports both legacy and modern firmware versions. FIRMWARE UPDATES ON iPHONE Keep your Excursion up to date with the latest firmware releases, directly from your iPhone. As the official Deep6 companion app, Nautiq delivers firmware updates as they become available. DEVICE SETTINGS Read and write every configurable setting on your Excursion: nitrox mix, conservatism factor, alarms, sampling rate, display units, backlight, and more. Changes are saved to the device immediately. DEVICE MAINTENANCE Clear dive logs, reset tissue compartments, soft reset, or restore factory settings — all from the app with confirmation prompts to prevent accidents. DIVE LOG Browse your dives with depth, duration, temperature, and dive mode at a glance. Search by site name, buddy, or notes. Sort by date, depth, duration, or rating. Add manual dives for logging non-computer dives. DIVE DETAIL Tap any dive to see the full depth profile graph, temperature overlay, decompression data, gas mixes, and alarm events. Edit site name, buddy, dive master, rating, visibility, and conditions. IMPORT & EXPORT (Pro) Import dive logs from other apps via CSV or UDDF files. Export your full dive history as CSV or UDDF for backup or use in desktop applications like Subsurface or MacDive. AUTO TIME SYNC Nautiq automatically sets your Excursion's clock to match your phone every time you connect. No more manually adjusting the time on the watch. iCLOUD BACKUP Your dive data is automatically backed up to iCloud. Switch phones and your entire dive history comes with you. FREE vs PRO Nautiq is free to download with up to 10 dives stored. Firmware updates, device settings, and device maintenance are always free. Upgrade to Nautiq Pro ($11.99 one-time purchase) for unlimited dive storage and CSV/UDDF import and export. SUPPORTED HARDWARE - Deep6 Excursion REQUIREMENTS - iPhone with Bluetooth LE - iOS 17.0 or later - Deep6 Excursion dive computer in Sync mode