This brand name is a playful take on the word "retina".
Retiny has only six characters and three syllables. Successful brands using three syllable names include Adobe, Heineken and Verizon.
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 valued domain extension in the world, famously used by websites like youtube.com. When you own a dot-com, it is much easier to rank for your own name in search engines.