ImagePrint (IP) through version 10 came with access to a bank of thousands of profiles (several per paper) which were made expressly for use with IP. You could also make your own, or have profiles made for you, to use with IP as long as the profiles complied with IP's requirements.
Starting with the current version, IP comes in two flavors, "Black," and "Red." IP-Black is essentially IP-10. IP-Red is said to have the essential interface functionality of IP-Black, but has several important differences from IP-Black under the hood. One difference is that IP-Red is BYOP (Bring Your Own Profile). You can use the paper manufacturer's profile, make your own, or have one custom made for you; however you accomplish it, getting the printer profile in place is your responsibility. Another difference of note between the two is that IP-Black works with only the Epson and Canon printers listed on the website, while IP-Red is supposed to work with "any" printer because, unlike IP-Black, IP-Red uses the printer manufacturer's drivers. I have used IP-9 and IP-10 for years, but have never seen IP-Red in operation, so I can't attest to how similar/dissimilar it is to IP-Black in actual use. (Further information here:
www.colorbytesoftware.com )
As far as the difference in color between the two printing methods (LR versus IP-Red), I don't have a certain answer. I have never printed from LR, although I've followed along with others as they have (I used to print from Photoshop, and found it so aggravating that I spent the money for IP). I recall that there are many places in the LR printing set up (and also in the Photoshop printing setup, for that matter) where a simple box click (present or absent) makes a big difference. For sure, if there is a box marked "Printer manages colors", you want that box OFF; what you want is "Application manages colors" (or words to that effect). Also, make sure that LR doesn't change your selected profile at some point (without telling you, of course) before you print. Also make sure that Rendering Intent and Black Point Compensation are the same in both LR and IP. Further than those warnings, I'm of no particular use to you on the color question, unfortunately. Good Luck!!!
Mark G.