Super great! Suggestions:

- let the shelters know about this (at least the ones in major cities) and see if they will promote it to their prospective adopters

- add functions to restart, go back, mark/save profiles, and review marked profiles (this would have made my latest pet adoption much easier!)

The Tinder swipe mechanic for pet adoption is genuinely clever. Swiping feels low-commitment which is exactly what you want to get people browsing animals they wouldnt normally look at. How are you sourcing the shelter data?