This app was mentioned in 9 comments, with an average of 8.11 upvotes
I think these people are using a phone app called photofunia. I myself have used it for a couple of laughs. I never posted it to social media, but when I was 19 I had a picture on my phone with my face on the giant screen at Lord's Cricket Ground.
Almost 100% certain they made this with photofunia, it has this exact wordart style
https://play.google.com/store/apps/details?id=com.photofunia.android
Ne Applikation die bildwitzig heisst https://play.google.com/store/apps/details?id=com.photofunia.android
This app on the Google playstore PhotoFunia
Use the 'RETRO WAVE' filter
Put that in your Play Store search below. That's really the only thing I know of. Maybe also PhotoFunia?
pub:PiVi & Co