For example, Twitter generated a summary card for the
above New York Times post.
App cards are links that represent mobile applications on the platform to drive installs. The card highlights the application’s name, logo, and a short description of up to 200 characters. You can also show the app’s pricing on the card as well.
App cards can feature thumbnails of up to four pictures. The aspect ratio is the same as tweets with four images, i.e., 2:1 appearing in a 2x2 grid.
Player cards are Twitter cards that feature audio or video clips instead of images. However, the media size should be within 1 MB. The thumbnail should be in JPG, GIF, or PNG and have a minimum dimension of 350x196 px.