Why can't I download an app from the App Store?

Related questions

1. How do you reset your app store?
2. Why I Cannot download apps from App Store?
3. How do I find a missing app icon on my iPhone?
4. What do I do if my Apple ID is locked?
5. Where has my App Store icon gone?
6. Which app category is most popular?
7. Why is the App Store not letting me download free apps?
8. Why is my phone not downloading apps?
9. Why do I have to reinstall apps on my iPhone?
10. Why does it take so long to download an app?

Tags

1. #store
2. #check
3. #apple
4. #problem
5. #settings
6. #solved
7. #again
8. #itunes
9. #download