Yes, Anduril-2 on that IF25A. The portion of the AmazonUS description which stated "Remarkable UI: sofirn IF25A uses Anduril UI 2" was correct. The "15 Clicks while OFF" Version Check reports "2021 06 06 0612", indicating a "June 6, 2021" version and a "0612" model number.
It's unfortunate that Sofirn does not include clips with the IF25 and IF25A as that is unusual for them. I have three IF22A lights and used those clips (which I believe are the same) for my one IF25 and two IF25A lights, which for the way I use them needed the clips more.
Also, for diffusers, I use these "Cooking Concepts Silicone Travel Dressing Containers, 2.875 in. SKU: 236908" from the Dollar Store (used to be $1, now cost $1.25 each):
https://www.dollartree.com/cooking-concept-silicone-travel-dressing-containers/236908
After you easily remove the top colored hard plastic parts, you are left with a silicone container with a protruding lip at the top and two lower shoulders of differing diameters.
Without any modification, the silicone container fits Lumintop FW3A and Sofirn SC31Pro sized flashlights, but you can off the portion above the first shoulder if you want a shorter diffuser.
If you cut off the portion above the second shoulder, the silicone container fits Sofirn IF25 & IF25A and Wurkkos WK30 sized flashlights.
Surprisingly the silicone containers are not all exactly the same size. Some of them were a loose fit on the Sofirn IF25 & IF25A flashlights, so I double those up by putting one inside of the other and they were then snug and more opaque.
The easiest way to cut the silicone containers down in size is to first fill them with water and freeze them, then align a razor knife against the shoulder and press it down into the ice , rotate the silicone container and do this again and again until you have cut all the way around.