Matrix is an open network for secure, decentralized communication, thus useful for people and organizations comparing interoperable chat, collaboration, and real-time messaging infrastructure.
Matrix is a protocol for secure and decentralized communication, and the protocol itself is free and open. The price will depend on client app, hosting provider, server or any other related service you are using.
Generally, Matrix.org is not a usual software store, and thus coupon codes are not relevant for it. If you need to pay something for Matrix-related service, you will need to check the pricing of a specific app, hosting provider or enterprise vendor.
Generally, Matrix is known for decentralized chat and communication, when users can chat with each other on different servers. Matrix is often compared with centralized communication apps because of the difference in approach to hosting and federating.
Generally, it is possible to save money in case of using Matrix by using open source tools and self-hosting. However, self-hosting also involves some costs such as server costs, maintenance and administration.
Users need to install Matrix compatible client, but there are several clients you can choose. Thus, features, experience and the price will differ depending on the client and server provider.
Generally, it can be a good choice for communities with the desire to have more control over communication and federation. However, it is necessary to review encryption, moderation tools, backups and policies of the server.
Yes, there are several companies and providers providing Matrix hosting and enterprise communication services. They are not related to Matrix.org itself and thus should be checked separately in terms of features, support, security and pricing.
No, Matrix can be used by regular communities, teams and individuals. However, the process of self-hosting may involve some technical knowledge and skills.