This brand name is a playful take on the word "retina".
The name "retiny" has only six characters and three syllables. Three syllable names are used by established brands like Grammarly, Adobe 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 valued domain extension in the world, famously used by websites like facebook.com. A dot com is the first thing people think of when they think of a website.