FTPsentinel

FTPsentinel is an opensource monitoring application that warn you everytime that your files are updated, removed or added on your FTP server.

Handy when you work with other people on the same server and you want to be aware of the changes or simply if you want to monitor suspicious activities.

FTPsentinel DOESN'T send your info to other website!
You can check the sources at: http://goo.gl/OzMGS

FTPsentine is opensource, free and adfree: support its development buying donate version! :)

Permission explanation:
Internet is required to establish FTP connection
Read and Write on external storage is required to get server's file list and compare changes