The phrase factors to a particular model of the YouTube software (model 19.16.39) probably sourced from a third-party repository referred to as APKMirror. APKMirror is a web site that gives APK recordsdata for Android purposes, permitting customers to obtain and set up app variations that is probably not obtainable by way of the official Google Play Retailer. This may embody older variations or variations tailor-made for particular units.
Accessing software variations by way of different sources like APKMirror may be helpful for customers who require a selected model as a result of gadget compatibility points, function preferences, or to bypass geographical restrictions or staged rollouts of updates. Traditionally, such repositories have supplied entry to software program iterations faraway from official distribution channels or these not but formally launched.