apps not working

i have downloaded two apps for google nexus 7 one from her and one from amazon app store but either one will work they open and clloe right away. i have tried uninstalling and reinstalling them. any ideas?
Answer #1
what apps you dll and dosent work?
Answer #2
puzzles and dragons from here and fragger from amazon app store. i paaid for from amazon and it didnt work but i grabbed the free version from google play and it worked
Answer #3
any ideas?