Wreck Lens, an atlas of ships lost at sea

Field notes

The planned record format separates the ship, the loss, and the people aboard, then adds discovery details, photographs where available, and linked sources. Its filters combine causes such as enemy action, accident, and ice loss with depth, region, protected status, and discovery date; the page says the resulting statistics are computed on the phone. The site describes the app as offline, but also marks its App Store release as forthcoming.