In the Audience view, you can compare engagement, amount spent, reach, and impressions by gender and age.
If you book a desktop app, you can run your ad both in the News Feed and Right Column. In the Placement view, you can see a breakdown by engagement, amount spent, reach, and impressions.
You can review the count and value of in-app conversions for each of your ads and campaigns using the Ads Manager. If you offer in-app purchases, you can use these figures to calculate your ROI and optimize your ad spending.
To use these reports, you need to add the Facebook SDK to your app and set up App Events to record actions taken within your app.
In the Ads Manager, select your ad or campaign. Click the button Columns: Performance in the table header and choose Customize Columns.
Select Apps to show only options relevant for Ads for Apps, then select your metrics; for example, Mobile App Adds To Cart or Mobile App Purchases. Use the list on the right to arrange the order of the columns. Click Apply.