In Adalysis, you can manage your placement exclusions and examine your data of where your ads have been shown.
In exclusions, you can exclude mobile apps from your traffic (1) - for specific phone types or all at once, both at the account or campaign level. This is an excellent alternative to the exclusion of adsenseformobileapps.com which was deprecated by Google.
You can also use the Content Label Categories Exclusion Tool (2) to exclude questionable content, especially sensitive content.
You can view all your exclusions and easily shift them between campaigns or even change at which level they are set. For example, if some of your exclusions are set at the campaign level, and you want to prevent all your other campaigns from showing up in these placements, you can select the placements in the Campaign-level tab and apply the Exclusion Migrations Tool.