Dose anyone know know how to fix and app on Iphone or just go back to original than updated version?

Please Please Help! I have an app that I download last year called Favoshots from apple store and it storage all your photos into different boxes and it's really good. I always use. I put all me special memoires and photo's like in that app. Then Jan 2015 it came up in the app store to update it. So did and now it doesn't come one at all! It's now November and still no update or nothing to fix it. I tired to find the guy who created it to ask what's going on but he now social on either Facebook or twitter. The man name is JUNG EUI HYUNG (if you know his email or anything let me know please).

So please techno experts out that please help me fix the app or go back from how it used to be. I don't want to delete it all my photo's are there.

That name makes me think its someone in china… Yeah good luck with that.