This brand name is a playful take on the word "retina".
The name "retiny" has only six letters and three syllables. Leading companies using three syllable names include Microsoft, Nescafé and Sainsbury's.
Retiny.com is a dot-com domain. Dot com domains are the most prestigious top-level-domain in the world, used by famous websites like youtube.com. A dot-com is the first thing people think of when they think of a website.
This domain was first registered in October 2016. Older domains have an advantage when ranking in search engines.