Open IPTV Smarters Pro and choose Add User from the home screen; this is where you decide exactly how the app will connect to your account going forward. The second screen is the login form itself, and it shows different fields depending entirely on which method you picked in the step before it. Xtream Codes API asks for a host address, username and password, three separate fields you fill in one at a time. Load M3U URL or File asks for a single link instead of all that. Both paths end the exact same way regardless of which you choose: the app contacts your account and downloads the current channel list, category structure and guide data in one continuous pass without further input from you.

Xtream Codes API is the stronger option whenever your provider happens to offer it, since it delivers categories, video-on-demand and guide data through one continuous live connection rather than through a static, unchanging file. M3U URL works perfectly fine as a backup option, or if that's genuinely the only format your provider gives you to work with, but functionally it's just a plain channel and stream list without any of that extra structure layered on top. If you have both options genuinely available to choose from, enter the Xtream Codes fields rather than reaching for the simpler link version out of habit.

A full catalog genuinely takes a moment to download completely and index properly on the app's end, so an empty-looking screen for roughly the first 20 to 30 seconds right after saving is entirely normal behavior, not a sign of failure. If the list is still showing empty after a full minute has passed, go back into the Add User screen and check the host address carefully for a stray space or a trailing slash, the two single most common typos people make, before jumping to the conclusion that the account itself is somehow the problem here.

Yes, and it's simpler than most people expect the first time they try it. IPTV Smarters Pro supports multiple user profiles natively, so just go back to Add User and save a second login as its own separate profile rather than editing or overwriting the first one you already have working. Switch freely between the two from the app's dedicated user menu whenever you want, with no extra steps involved. This turns out to be genuinely useful if you're testing a brand new account before fully committing to it, since the original profile stays completely untouched and available the whole time you're testing.