App needs fixed!!!

I had to get new phone last month. I went with the iPhone 5s. Used to have the Galaxy S3. The Market Millionaire app doesnt work for iPhone!
Please fix!!!
The issue comes up when you click on any stock market company it just turns off the app and goes back to my phone home screen. Please fix!!!!

One Handed Haha about Stock Market Millionaire, v1.1.3