Jack'd has a higher concentration of juicy Asian boys, but it's the only advantage it has over Grindr. Other apps have no advantage, considering how being gay is already a niche of itself, apps serving niche crowds of an already niche crowd are bound to be dead and thus useless
Grindr is the best for hook-ups, PlanetRomeo is also used here in Croatia/Europe, you can actually have a friendly conversation there. I've downloaded Hornet and literally 15 people use it. 90% of the guys are the same on each dating app tbh.