Postify is described as an application designed to help users, including potential small business owners and private individuals, create personalized posters, banners, greetings, and invitations. Users can customize their designs with various elements such as fonts, colors, images, and layouts. The app provides a user-friendly interface and offers a wide range of professionally designed templates tailored to different occasions. Postify also ensures high-quality output, suitable for both digital sharing and printing. Users can easily share their creations on social media platforms or download them for offline use.