If you are looking for a reliable way to use FolderSync Pro, it is recommended to use official sources:
Unofficial builds may be unstable, especially since the 3.2.10 build is several years old and may not be compatible with modern Android permission systems like Scoped Storage introduced in newer Android versions. foldersync-pro-3-2-10-build-2020100088-apk-mod
While the official app claims a privacy-first approach where data is controlled by the user, a modified version could bypass these protections to send data to unknown third-party servers. Official Alternatives If you are looking for a reliable way
It allows users to set up "Folder Pairs" to sync data in one direction (upload or download) or bidirectionally. foldersync-pro-3-2-10-build-2020100088-apk-mod
: For devices without Google Play, the developer offers direct purchase options on their official website.