Snapchat is a mobile app that allows users to share photos and videos, chat with friends, watch stories, and explore content. Here's a breakdown of its key features:

• Camera: The app opens directly to the camera, allowing users to take photos or videos.
• Lenses and Filters: Users can express themselves with lenses, filters, and Bitmoji. New lenses are created daily by the Snapchat community.
• Chat: Users can stay in touch with friends through live messaging and group stories. Video chat is available for up to 16 friends with the option to use lenses and filters. Friendmojis are also available, which are exclusive Bitmoji made for a user and their friend.
• Stories: Users can watch friends' stories, view stories from the Snapchat community, and discover news and shows.
• Spotlight: This feature showcases popular content from the Snapchat community where users can submit their own snaps or watch others.
• Map: Users can share their location with friends or use Ghost Mode to go off the grid. The map also shows where friends are when they share their location. Users can explore stories from the community nearby or across the world.
• Memories: Users can save photos and videos, edit and resend them, or add them to their camera roll. Stories can be created from favourite memories.
• Friendship Profiles: Each friendship has its own profile, where moments saved together can be seen, along with things users have in common, such as how long they have been friends.

Other points to note:

• Users should be aware that their messages can be captured or saved by others through screenshots or other methods.
• The app collects user data, including location and personal information. Data privacy practices vary by use, region and age. The developer may update the data practices. Data is encrypted while in transit.
• Some users have reported issues with the calling feature, such as the lack of a speakerphone option for voice calls. Some users find the audio on voice calls to be too quiet.
• Some users report the songs they want to add to snaps are often not available.
• Some users have noted that text is difficult to read since the black outlines were removed, and that it is no longer possible to add text to a video recorded on the app.
• There have been bug fixes and improvements.
• The app contains ads and in-app purchases.

The app is developed by Snap Inc., and the developer can be contacted via email or phone. Some similar apps are listed: BeReal, Tellonym, Botim, Instagram, Messenger and Libon.