Doing more review, I’ve learned your Simplify Extend has the same trouble with the menu. However, it does this AFTER a person closes the top menu bar with the “Purchase Now” icon. This was found using an iPhone 5 with iOS7. As mentioned before, the menu acts the same on the Android.
To make it more clear, I’ll respond to your email with snapshots from the phone showing each situation.
Hope this helps with troubleshooting the situation. Let me know how I may help.