Yes, people absolutely use Tinder and other dating apps like Bumble on cruise ships, though the experience is significantly hampered by technical and logistical hurdles. The primary challenge is that Tinder relies heavily on GPS and a consistent internet connection. Because cruise ship Wi-Fi is often satellite-based and can be spotty, your phone may struggle to pinpoint your exact location while at sea, frequently showing you matches who are hundreds of miles away on the nearest mainland rather than on your ship. To combat this, many savvy "cruising singles" use the app while the ship is still in port to "ping" other users nearby and see who else might be embarking on the same voyage. Some ships, like those in the Virgin Voyages fleet, are known for a younger, more "single" demographic and even host official singles mixers, which many find more effective than swiping. If you do use Tinder at sea, you will need a premium Wi-Fi package, and it is best to use it on the open upper decks where the GPS signal is strongest and less obstructed by the ship's massive steel structure.