How To Block Ads On Mobile Apps For iPhone and iPad (Offline Apps)
If you are using offline apps, you can block ads on mobile apps for iPhone and iPad by simply by turning off your connection to the internet.
Step 1: Settings
First of all go to the settings app.
Step 2: Disable Wifi
Go to the wifi, and then make it disable.
Step 3: Disable Data
Go back to settings. Go to the mobile data and make it disable.
Alternatively, you can also simply do so by turning on airplane mode to block ads on mobile apps for iPhone and iPad.
Step 1: Control Center
From the bottom of your screen, swipe up the control center.
Step 2: Airplane Mode
Press the airplane mode button to enable airplane mode.
How To Block Ads On Mobile Apps For iPhone and iPad (Online Apps)
For apps that require you to be online (namely, Safari), you can use a third-party ad-blocker to block ads on mobile apps for iPhone and iPad.
Step 1: Install Ad-blocker
Step 2: Select Content Blocker
Go to Settings > Safari and scroll down to Content Blockers.
Step 3: Enable Content Blocker
Flip the switch to enable/disable your content blocker(s) of choice.
Image from iMore