Learn how to target people by platform, interests, age and other demographics or connections to Pages and apps.
Identify people who downloaded your app but didn't come back recently.
Create a Custom Audience targeting people who have previously used your app, for example all people who didn't come back to your app recently.
Lookalike audiences allow advertisers to target more people who look like their established customers.
Create a Custom Audience targeting people you know about from other sources, for example your newsletter subscribers.
You can use Apple's and Android's Advertising Identifier or Facebook User IDs - called mobile advertiser IDs - to create customer lists.