Best screen calibration tool for iMac 27"

[trjwv]

I have an Imac 27" and want to calibrate the screen and also a small inkjet printer "epson artisan 810". Does colorsynk, which is included with mac work or do I need spyder etc...
Also does print companies like white house or mpix offer icc color profiles which I could d/l to my mac and have the correct icc color profile for my printer, imac and web printing company?
Not really sure how this works, I am just tired of having the output not look like my photo on my screen looks.
Thanks all......

 

[Padaung]

Have a read of this from a few weeks ago.

https://forums.macrumors.com/threads/1040824/

A Spyder Express or Spyder Pro are should be good for your needs but you can compare the features of all their products on their website.

http://spyder.datacolor.com/s3compare.php