This is easily the most common point of confusion for newcomers, and it is worth clearing up before you buy anything. Xtreme HD IPTV and IPTV Smarters Pro are not competitors — they are two halves of the same setup. Here is how they differ and how they work together.
They are two different things
Xtreme HD IPTV is the service: the channels, the on-demand library and the login that unlocks them. IPTV Smarters Pro is a free player app — a piece of software that takes your login and displays the content.
Think of Xtreme HD IPTV as the electricity and IPTV Smarters Pro as the light switch. One provides what you watch; the other is simply how you watch it.
How they work together
You subscribe to Xtreme HD IPTV and receive your Xtream Codes or M3U link. You then install a player — IPTV Smarters Pro, TiviMate, Smart IPTV, or another compatible app — and enter those credentials.
From that point the app streams your Xtreme HD IPTV subscription. The app on its own shows nothing; it needs the subscription to have anything to play.
Which player should you use?
Any compatible player works, so the choice is about interface. IPTV Smarters Pro is beginner-friendly and available on nearly every platform, which makes it a great default. TiviMate offers a slicker guide for those who want it.
You are free to switch players at any time without changing your subscription — the same login works across all of them.