You don't have to spend months creating in-app messaging feeds and messaging. Instead, you can implement them in as little as a matter of weeks using Stream's activity feeds or in-app chat APIs. Stream's flexible UI kits, reliable APIs, and developer-friendly SDKs allow product teams to quickly integrate polished communication functionality found on social media platforms like Instagram, Facebook Messenger, or WhatsApp. Stream's APIs have an industry-leading 99.999% uptime guarantee, more than a billion users, and 5,000,000 concurrent connections. This makes them highly scalable and ideal for both enterprise-grade businesses as well as growing startups. Easy-to-use software components make it easier to ship fully-featured activity feeds, in-app chat functionality, and other features faster. This gives your product an edge.