I got my first Moder Tailor shirt that you measure yourself and fill out a form to get a custom tailored shirt. It's the best fitting shirt I have ever owned.

I also tried the MTailor app for iphone. It uses your camera to scan your measurements and the shirt is just as good as the Modern Tailor one. MTailor shirts run anywhere from $64-90 with a wide range of fabrics and options for the collar, cuff, pockets, monogram, and cut (slim/regular & tucked/untucked).

Modern tailor has more selection and your first "trial shirt" is only $20, but you only get to chose from black, white, and blue. The wait time is usually around 4 weeks, but well worth it. I think they both have wrinkle free as well.