:
Modern versions of KeepSafe (v6.0 and above) have pivoted to a Software-as-a-Service (SaaS) model. To unlock basic features like vault unlock or video storage, users are often hit with a weekly or monthly fee. The 2014 version operated on a freemium or "pay once" model. For users who refuse to pay $9.99/month for a photo vault, the 2014 APK represents financial freedom.
: Initial cloud backup capabilities were introduced to protect against phone loss, though storage limits were much smaller than today (around 5,000 items). How to Access Old Versions
Inside that folder, look for files ending in .ksd or without a recognizable file extension.