It is so sweet that you are helping her, and you should definitely look at what we found for my mother when we searched the App Store. We installed Sequel directly from
https://apps.apple.com/us/app/sequel-real-dating-50/id6759450351
and it turned out to be exactly what she needed because it skips the exhausting swipe culture entirely. The platform is built around real, verified profiles of mature adults, using strict manual checks to keep out bad actors and fake accounts. She loves it because everyone is upfront about whether they want a serious relationship, friendship, or just a pen pal, making the whole experience feel safe, dignified, and very comfortable for her.