When I first started to get into Umamusume I always thought that Love Only You would be the Yandere waifu by the name alone instead of Still In Love.
Or atleast the 2nd Yandere waifu character since Still In Love is also a fitting name.

Is the app some kind of Tinder? When I translate it, it says "Umaple".

Uma-pple. Forbidden fruit angle, presumably.

GiuliZorro said in comment #2611656:

Is the app some kind of Tinder? When I translate it, it says "Umaple".

In Japanese, it reads “Umapuru” so it’s probably the dictionary form of “to umapyoi”

GiuliZorro said in comment #2611656:

Is the app some kind of Tinder? When I translate it, it says "Umaple".

BlastingNaba said in comment #2611680:

Uma-pple. Forbidden fruit angle, presumably.

mymomken said in comment #2632068:

In Japanese, it reads “Umapuru” so it’s probably the dictionary form of “to umapyoi”

It's just Uma + Couple (kappuru). So Umaples.

Dictionary form would instead be うまぴょい（を）する.

GiuliZorro said in comment #2611656:

Is the app some kind of Tinder? When I translate it, it says "Umaple".

There's a dating app in Japan called Tapple (タップル) so it could be that too.