Your Quick Introduction to 42matters' App Audience Finder

We have sampled more than 100 millions US mobile users and assembled a graph of users and apps they use. These users are identified by anonymous advertising ids provided by Android/iOS - also know as app-user graph.

With our technology, if you're advertising a service similar to Airbnb, you can now get a list of users that actually use Airbnb and target them on Facebook, instead of running several rounds of experiments to find out how to define your target audience with demographics and interests.

It's not just for mobile ad campaigns

When you export audiences to Facebook and do your campaigns there, Facebook would match these anonymous ids against all their users. So your exported audiences could be employed in all kinds of campaigns and all kinds of placements, ranging from web traffic ads on desktop feed to app install ads on Instagram app.

You get to pick which apps' users you want to target

For example, you could create an audience with users having either Skyscanner or KAYAK. In addition, based on what you're going to advertise, our algorithms will give you suggestions on which apps to pick.

Integrated with Facebook

With one click, you could export the defined audience to Facebook (as a custom audience). Our system will also create a 1% lookalike from the exported audience to broaden the reach.

You could then use these audiences in your campaign targeting and trim them further with Facebook's audience filters like location, demographics, or interests.

You may also use the audience insights from Facebook to examine the exported custom audience.


Audience Finder is able to provide audiences with a higher granularity and stronger intent. Ideally, combining both Facebook Targeting and Audience Finder's results will allow you a more effective ad targeting strategy that will place your ads directly in front of the right people.

Ready to improve your ad targeting? Start your 14-day free trial now.

Ready to improve your ad targeting?

14-day free trial. One-click setup with Facebook Ad Accounts. Pay as you go. Cancel anytime.

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