This brand name is a playful take on the word "retina".
Retiny has only six characters and three syllables. Three syllable names are used by established brands like McDonald's, Sainsbury's and Heineken.
This domain was first registered in October 2016. Older domains have an advantage when ranking in search engines.
Retiny.com is a dot com domain. Dot com domains are the most valuable domain extension in the world, used by famous websites like google.com. Once you own a dot com, it will be much easier to rank for your own name in Google.