Messenger services are messaging services. They can be used to send short messages, pictures, photos, videos, files
, personal location data and voice messages. Messenger services are used for individual communication between two smartphone users, but there are also services for transmitting information to registered interest groups. Messenger services work in real-time communication and are based on instant
messaging(IM) and mobile instant
messaging(MIM). Corresponding apps can be downloaded and installed on desktops, tablets or smartphones via the Internet or mobile networks. Users can then create their own account
. The service program automatically creates a contact list that is updated with every contact. To make contact, the user only needs to click on the entry in the contact list. There are various providers for messenger services.
The best known with the largest distribution is WhatsApp. Others are Facebook Messenger, Snapchat, Windows Live Messenger, Skype Messenger, Yahoo Messenger, Google Hangouts, Telegram, Discord, Threema, Viber and various others. Many users give the aforementioned messenger services priority over the classic e-mails, which are mainly used in business, or the previously frequently used short message service (SMS).