Why can't I install apps on my iPhone?

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Tags

1. #enter
2. #settings
3. #updating
4. #iphone
5. #including
6. #restrictions
7. #certain
8. #general
9. #blocked
10. #install
11. #disables
12. #installing
13. #passcode
14. #features
15. #feature
16. #check
17. #download
18. #ability
19. #function
20. #update