I have run into a problem with my iPhone 6s. When I open certain apps many times it is almost 10 seconds before they open. This is of course unless it is open in the background. I have tried many things to cure this but nothing seems to work. I have uninstalled and reinstalled the apps. The problem fixes itself if I power off the phone and restart it but it comes back. Also, it does not happen when the phone is in airplane mode. None of this happens on my iPad. The apps include Fantastical 2, Dark Sky, Forecast Bar, DayOne 2, and some others. I have reset the phone, erasing all content and setting up as a new phone and still the problem persists. The Genius Bar says its a "software" problem. Any thoughts? Thanks
