Yes, that did it!!!! Thank you SO much!!! I had followed advice to get the battery to last longer and must have been too "gungho" in doing so. I am really grateful for your help.

iPhone 6s Problem I first noticed this problem last night when I went to use Soundhound - it had disappeared from its folder! Then I found that other apps had gone too - many being Sound or Media related e.g. BBC iPlayer, Youtube and Spotify. Chrome has also gone. If I go to the App Store to...