GRE Inside Out is a free Chrome add-on that aims to enhance your vocabulary by displaying a random GRE word every time you open a new tab in the browser. Developed by GRE Inside Out, this program provides users with an opportunity to learn new words effortlessly.

The app sources its words from a highly curated wordlist of GRE words, which includes not only the standard wordlists but also some high-frequency words that are not commonly found in famous wordlists. This ensures that users are exposed to a wide range of vocabulary, helping them expand their knowledge and improve their language skills.

With the option to receive a new word with each new tab, users can easily make learning a part of their daily browsing routine. It's a convenient way to enhance your vocabulary without any extra effort.