Too intrusive (and annoying) among (plenty of) alternatives
It does what it says, and does it fairly well. But as a proclaimed "free" app, it prompts for purchase every time you open it. Thats way too intrusive. You may want to use it if this is the only one that does effects right. But it is not. There are plenty of alternatives in this domain. Removal of "sound effect" in the latest update, though, is an improvement.
Sillyvalley about
Picture Effect Magic