Files App - Files is a beautiful single-file PHP file browser and manager that can be dropped into any dir on your server, instantly creating a gallery of files and folders.
My Phone - Backup your phones content automatically (up to 200MB free):
Filen - Next Generation end-to-end encrypted cloud storage. Get started with 10 GB of free space.
OnePlus Switch - Switch iOS or other Android phone to OnePlus for better using experience and performance.
Samsung Cloud - Samsung Cloud is a cloud file management application made by Samsung that lets you manage your files and folders across devices.
PhoneCopy - Transfer your contacts and other data between your phone and an online storage. Keep your data in sync, backed up, and accessible anywhere with PhoneCopy.