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Primitive FTPd vs FTPS Server: catalog facts
Primitive FTPd	FTPS Server
Free Free and open source under the Apache 2.0 licence.	Free Free, released into the public domain under CC0-1.0.
Android	Windows, Linux, Android, Command line
Supports both FTP and SFTP Works without root	Encrypted FTP over TLS transfers Per-user permissions and isolated root folders
Prevents standby while running, which uses battery Needs a client on the other machine	Small project with few users so far No GitHub releases published
Downloadable app	Downloadable app
Open source	Closed source
License: Apache-2.0	License: CC0-1.0
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked October 2, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.