Find "Gear File Manager Pro" on the Google Play Store. Ensure the developer is "Gear Apps Studio" (beware of clones). The Pro version costs approximately $3.99–$4.99 depending on region. No recurring subscription.
: A "Twin Window" interface that supports vertical or horizontal splits to make moving and comparing files between directories easier. gear file manager pro
: Advanced batch renaming features that allow for rules-based renaming of hundreds of files at once. Find "Gear File Manager Pro" on the Google Play Store