Use APKPure App
Get Primitive FTPd old version APK for Android
A simple FTP server.
A simple FTP server. Allows to exchange files with other machines over wifi. No more USB cable searching. Runs without root privileges. Is not started when device boots (but can if you wish). Control yourself when the server runs. While it runs it prevents standby to avoid long uploads and downloads to abort (configurable). Transfers can be encrypted by SFTP.