There are many lucrative Apple applications which are added in almost every device including iPhone and iPad etc. Many times these applications become lost due to some reason. You can get them back by searching them in the App Store, Safari web browser, iTunes Store etc.

The “Restriction” functionality of iOS devices, which is the inbuilt tool, permits you to disable or hide some of the installed apps. You can also block some of the apps in iPhone.

There is a multitude of the featured toos in iOS like the centre of games, alteration in email accounts, settings of privacy etc.

When it happens that your apps are disappeared from the devices, then you can get back all those apps. Mostly there are two kinds of people who employ the functionality of Restriction for concealing the apps namely parents and IT administrators. Generally, parents employ this option of restriction for preventing their kids from accessing into the applications as it might be having the abusive contents. The IT administrator of the company employs this option for implementing the policies of the enterprise and security concerns.

Source :- Missing Apps on the iPhone
There are following steps to avoid the featured tool of the Restriction in iOS devices in case of the devices equipped with the iOS 11 and lower than that of iOS 11:
1. You can hit on the option of “Settings” and then press the button of “General”.

2. You can click on the option of “Restrictions”.

3. In case you recognize the passwords of Restriction then insert it in to and select the application which is to be enabled.

4. Now you can press the button of “Disable Restriction” for enabling the applications and switch it into off mode.

There are given steps to bar the featured tool of the Restriction in iOS devices in case of the devices equipped with the iOS 12 and more than that of iOS 12:
1. You have to hit on the option of the “Settings” and then “Screen Time”.

2. You have to click on the button of “Content & Privacy Restrictions”.

3. In case of Restriction function is already switched on then you will get the notice of putting the passwords of it. It is to be noticed here that if you are the kids or the employees, then you might not be able to know its passwords.

4. When you can avail the Restriction settings, then you can choose the enabling of this feature for some of the apps. 5. You can turn the option of “Content & Privacy Restrictions” off for enabling the applications and switch it to off mode completely.

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