XP Indicators
XP indicator is an indicator which will expire at a time. When you see text like "XP(150524)", it mean it will work until May 24, 2015. If you still want to use this indicator after that date, you'll need to visit this download page again to download the indicator that work after that date. If you don't see new download link on this page, just let me know through the Comment Form or drop me an email.
Currently there are no XP Indicators available
Free Indicators
The following is a list of MT4 Indicator that can be downloaded from fxindi.net for free.