Facebook Analytics - Facebook's new analytics app on iOS and Android
Facebook Design - Resources for Designers from the Facebook Design team
LeadsBridge - LeadsBridge is an all-in-one solution for lead generation that easily helps you fills the gaps connecting over 200 CRM or Email Software.
Buffer Analyze - Buffer’s Facebook and Instagram analytics and reporting tool
Facebook Ad Hunter - Facebook Ad Hunter uncovers hidden audiences to target when running Facebook Ads.
Grade My Ads - Score your Facebook ads + improve them, in seconds.