Me in person when using that app or if that app could handle drawing, text, etc.? You could even convert textlayer to image and e.g. recolourize it, add effects like mirror, background, shadow, etc. when using PhotoFiltre7. Possibly another type of version would include no layers, I guess somewhere I've tried it while I tend to use the 7th release. Also just getting it's app on the website than on other references, which "seem" to have it available, while I prefer it as program, not with added info like being a shareware, etc.
I was getting mine from the website and it rarely mentions a french error-code, e.g. if I'm adding many small layers and an error pops up and gets the file quite broken and removing some layers to transparent image. Still closing and starting another file works, even the current file being quite edited. Anyway not the whole app would be failing in features just this project you're working on.
It could save files als jpg, png, and project-file which refers to the app, being nicknamed "pfi" as file's nick.