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