In-app stories are a leading mobile format that provides vertical, full-screen content in applications. Stories help to broadcast multiple images, such as videos and photos taken each day. In your stories, you can add doodles, stickers, filters, and masks. The reel of stories disappears after 24 hours. If you want to increase your reputation and interaction with your users or followers, add more photos or videos to your storyline, so they don’t forget you.