A browser extension that adds a checklist to the Dive Master wiki page.
The in-game achivement section is super vague and cumbersome to access.
Firefox: Userscript download // Requires Greasemonkey or another extension that supports userscripts. (Note: At the bottom of the Dive Location table is a box to add your API key.)
Chrome: Chrome Web Store
Currently the userscript is a version behind, without the ability to save local dives.