The ability to extract APKs seems particularly useful for developers who want to analyze or reverse-engineer apps, but I'm concerned about potential security implications if not used carefully https://play.google.com/store/apps/details?id=com.roysolberg.android.developertools&hl=en_US&referrer=utm_source%3Dgoogle%26utm_medium%3Dorganic%26utm_term%3Ddeveloper+tools