Mares App1.3.0 - App Store

APPLE WATCH ULTRA DIVE COMPUTER
Transform your Ultra into a dive computer. Record dives directly on your wrist and sync automatically to the Mares App. (In-app purchase required.)

DIGITAL LOGBOOK: Log your Scuba, Freediving, Extended Range and Rebreather (SCR/CCR) dives in seconds via Bluetooth. Easily share your dives via QR code. Add new dives with your device’s GPS and download your dives from selected dive computers (1*).

DIVE SITES: With the help of the Mares dive site database, you can immediately assign a dive site to your logged dives. You can also add your own private dive sites and share them with your dive buddies using a QR code. You can download your dive data directly from selected Mares dive computers .

WILDLIFE: A variety of local wildlife is already stored in the app for individual dive sites. This means you can immediately assign the highlights of your underwater encounters to your logged dives. Your sightings are displayed on your personal world map.

DIVE BUDDIES: Easily add your dive buddies via QR code or manually in the app. Share your best dives and most exciting animal encounters with friends using the Mares app.

STATISTICS: All your dives and data can be seen at a glance, including your longest or deepest dive, your average dive time and more!

DIGITAL EQUIPMENT: Store important dive equipment details, including serial numbers, photos and invoices. Enter maintenance dates and keep track of when your equipment needs to be serviced.

NEWS AND VIDEOS: Stay up-to-date with all the latest news and videos from the world of water sports and diving.

FIRMWARE: When you connect your dive computer to the app, you will be able to confirm if you have the latest firmware. As soon as it is outdated, you will receive a message regarding the newest firmware to download.

TABLES: Here you will find useful information such as decompression tables and emergency scenarios.

1* Currently available for MARES Sirius, Sirius L, Sirius Hunter, Horizon, Genius, Quad CI, Quad 2, Quad Air, Quad, Puck 4, Puck Pro EZ, Puck lite, Puck Pro, Puck Pro Plus, Puck Air 2, Smart, Smart Apnea, Smart Air

Terms of Use (EULA) Mares App for Apple Watch Ultra: https://my.divessi.com/published/viewhls/awu_terms_v1/2

Version History - New dive library with improved NDL calculation
- New watch faces & widgets added: NoFly, DeSat
- Improved performance & bug fixes
- Change map provider
- Tested and approved for iOS 27.0 as well as iOS 26.6 1.3.0 Sep 17 Firmware update improvements
Minor improvements and bug fixes 1.2.13 Jul 23 This update fixes an issue where the Mares app could no longer be selected as a dive app in the Apple Watch Auto-Launch settings ("When Submerged"). 1.2.7 Jul 2 Minor bug fixes and improvements 1.2.6 Jul 2 Fix alarms in the dive charts in the phone logbook
Improve dive start error view while under water when the iOS or version is not supported
Add unsupported hint to Apple Watch if running an iOS beta 1.2.5 Jun 25 Bug fix: Gas switch display in the chart. 1.2.4 Jun 9 Minor Bugfixes
Puck 2 Air integration 1.2.3 May 14 Minor Updates synchronizations 1.2.2 May 6 Bugfixes and performance enhancements 1.2.0 Apr 7 Add pictures to logged dives (if pictures are stored on your device and/or synchronized via Apple iCloud)
Minor Bugfix- App did not open offline 1.1.2 Feb 12 Location tracking improvement after surfacing and between dives
Minor Bug-Fixes 1.1.1 Jan 28 NEW FEATURES;
• Auto-Select & Sync your Dive Site – The app automatically logs the nearest dive site using the Ultra watch GPS and our extensive database of more than 10,000 verified dive sites from SSI.
• Air Dive Mode – For quicker and easier selection of your dive mode.
IMPROVEMENTS & BUG FIXES;
• Extended Surface Interval – Option to increase your surface interval to 45 minutes, for extended time on the surface before resuming the dive.
• Bottom Timer Indicator in the dive log – So you can quickly see your dive mode in the log book summary.
• Correct Ultra Model Displayed – Your specific Apple Watch Ultra model is now shown in the logbook.
• Clearer messaging when multiple issues prevent a dive start.
• More precise notifications when the bottom timer is activated.
• Logbook now respects the maximum supported sensor depth.
• Correct GF End value is shown on the logbook summary after the dive ends.
• Complications correctly refresh when switching dive modes on the phone.
• Fixed a rare issue where the app closed during a dive when removing the dive lock after pre-dive.
• Resolved dive-time lag on long dives with Apple Watch Ultra 1.
• Improved handling when water lock is removed in the pre-dive state. 1.1.0 12/16/2025 Improvements in stability and crash fixes. 1.0.4 11/26/2025 We’ve made several improvements to enhance your diving experience with the Mares Dive App for Apple Watch Ultra:

ENHANCED FEATURES
• Clearer complication display in BOTTOM TIMER MODE
• SURFACING EVENTS now included in your dive logbook
• Smoother SETTINGS SYNC between phone and watch
• Updated home screen shortcut with ULTRA-SPECIFIC ICON
• Improved app diagnostics with version tracking for better support

GENERAL FIXES
• Resolved issues with dive charts on watch and phone
• Corrected UNIT DISPLAY when using imperial settings
• Improved SURFACE INTERVAL and DEPTH WARNINGS
• Fixed planner behaviour in Bottom Timer mode

Thank you for choosing Mares. We’re committed to delivering a reliable, intuitive dive experience – right from your wrist. 1.0.2 11/11/2025 New! Apple Watch Ultra Support
Turn your Apple Watch Ultra into a full-featured dive computer with the Mares Dive App (available as an in-app purchase).
Log dives, track your stats, and sync everything seamlessly to your digital logbook. Lightweight, reliable, and always on your wrist – diving has never been so simple. 1.0.1 10/16/2025 NEW: Sirius L integration, imported freedives – maximum value can be added directly to a freedive discipline.
Equipment sets are now sorted by equipment categories.
Minor bug fixes: text elements, manufacturer list in dark mode, double dives, adding equipment sets. 0.9.180 07/25/2025 NEW: BLE import integration for Puck Pro EZ
BugFix: QR code scan verification 0.9.179 06/25/2025 Integration von Sirius L
Minor Updates and Bug Fixes 0.9.177 06/18/2025 Fix for Puck Pro Firmware Update 0.9.176 02/11/2025 Update Mares Sirius Firmware Switch Freediving- Scuba 0.9.175 01/28/2025 Preparation for Mares Sirius Firmware Switch Freediving- Scuba
Minor BugFixes 0.9.174 01/23/2025 Preparation for SIRIUS Freedive Firmware Switch 0.9.170 12/22/2024 New Mares Quad 2 integration
Area code Bonaire, Curacao added in Emergency contacts
Improvements in dive site database sync
Small Bugfixes including Smart Apnea imports 0.9.168 12/11/2024 New: Font changes
Bugfix: Settings - "Save personal data" button works again 0.9.166 11/20/2024 Puck Lite und Puck Pro Ultra Support- new computer coming up soon!
Minor Fixes and Updates 0.9.164 10/23/2024