Fwiw, x-rite had a webinar 3/27 that explained the ColorTRUE thing. Showed which units works with what system, Android or Apple. My choice would have to be a ColorMunki Display, or their i1Photo Display for Samsung Tab 3 10.1 (Android.).
Luckily, I found a dealer who had a ColorMunki Display open-box sitting on a shelf. Plugged it in, the ColorTRUE app found the device (Both the i1Photo Pro 2 and ColorMunki Photo were dead to it: "No device found."), and did its thing for maybe 5 minutes.
Yes. The color display looks a lot better and it also did boost the shadow detail a lot too in the unit. The webinar said it would, and the store's salespeople agreed. You have a small button on the side of the screen you can press to show the Before and After too.
They are running some one-day sale following their webinar on the ColorMunki Photo and the i1Pro Display along with a ColorChecker Passport for $40 off some already in place $50 off sale. So almost $100 cheaper until March 29 (B&H and Adorama both show the sale as does Samy's in LA area.).