That looks like a little logo. I don't know of an app like that. You could try text on photo apps like Phonto, TitleFX, and others. Search "text on photos" and "fonts". Also check Rhonna Designs. It's on sale today free!
Also this might help:
Makr - Logo Design & Custom Prints by Happy Media https://appsto.re/us/4SNXI.i
But you'll need to do a bit of photoshop to get the desired results.