FileRun - Beautiful, fast and reliable selfhosted file sharing and sync.
iMazing - iMazing lets you transfer music, files, messages, apps and more from any iPhone, iPad, or iPod to a computer, Mac or PC. Manage and backup your iOS device simply without iTunes. (was DiskAid)
FilesAnywhere - FilesAnywhere offers free 1GB online file storage, with cloud storage solutions for Internet...
Documents by Readdle - A central hub for all your files.
PHP File Manager - phpFileManager is a complete filesystem management tool on a single file.
FileApp - FileApp is an iPhone and iPad File System and Document Viewer.