com.yandex.metrica.b
    ru.mail.android.mytarget.core.enums.b
    ru.mail.android.mytarget.core.facades.a
    scala.collection.SeqView
    scala.collection.SeqViewLike

Releasing
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In addition to APK-related metadata, we also attempt to collect other metadata that are published along with the release of the app, e.g., such information that is provided by Android app markets such as Google Play. So far, we collect eight artefacts for an APK and the collection is only performed for Google Play apps. It is also worth to mention that we only store the latest releasing metadata. In other words, based on our current policy, even if the releasing metadata exists for a given app, our crawling program will overwrite them anyway based on the newly crawled information.

-   **Description:** Description artefact is a paragraph of text that is provided by app developers to depict the basic functionality of the app, so as to motivate users to download and install. Researchers could leverage this information to check against the app code behaviour, as what has been presented by Gorla et al. [@gorla2014checking].

-   **Category:** Category artefact illustrates the group that the app belongs to. Normally, apps from the same group would potentially share more or less the same functionality. Researchers could leverage this information to demonstrate the diversity of their app 