About Rename Photos and Videos
This app aims to rename your photos and videos so that the filenames begin with the date of recording. That way, you can always sort your files chronologically, regardless of recording device and even after they've been duplicated or modified.
If you want to view your photos and videos in a chronological order within a gallery app, sorting by filename often doesn't work since photo filenames begin with "IMG_" or "PANO_" and videos with "VID_" or "MOV_" (depending on your device). Panoramas and videos will be shown last.
Sorting by EXIF date taken doesn't work either since videos don't contain EXIF data. They will be shown last (or first).
Sorting by filesystem's "date modified" usually works fine on the original device. But when you copy your files to another device, the date of copy will be the new "date modified", which disrupts the original chronological order of the files.
For these reasons, it makes good sense to rename your photos and videos with this app before transferring them to another device (smartphone, tablet or PC), so that all filenames begin with the date taken.
Write access to external SD cards in Android 5 and newer (and in many cases also in Android 4.3 and older).
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