>>511331316
Accessibility. It's like asking what's the difference between Tinder (at its inception/peak) compared to OKCupid.com and PlentyOfFish websites.

Mobile apps have the advantage of being with you at all times, easy access to location (nearby users), and being able to post pictures without the annoying task of getting them on your PC first.

Ease of use is a huge factor. Just like the "swipe" aspect was basically Hot or Not 2.0.