Not really. Safest place to get an app is from the Dev if you're not using the play store. FDroid has been known to host out of date packages forever, causing security concerns.
I used to use rsync to copy data from my storage array on one machine to an external and an off site backup. Since a lot of it was code, it always took forever to scan all the small files, and I had to script unlocking remote partitions.
With encrypted ZFS, I can just zfs snap then zfs send, and it does the same thing at the block level, raw, so way faster, less data transfer, and no need to send a key or passphrase unless I need to mount it at the destination (meaning a cloud provider could never know the data, for instance)..
ZFS is also recursive, so if I have s/storage and /storage/stuff defined, I can snap and send either level, which makes it as versatile as rsync.