IsDown App - Monitor all your cloud services status pages in one place
Cachet - Cachet is a free, open source status page for your API, service or company. Built with all of the features that you'd expect from a status page.
Feedsme - Feedsme is the business cloud services assistant that automatically integrates, analyzes and...
cState - 🔥 Free & open source under MIT!
Ctatus - CTATUS helps you monitor your external dependencies, catch problems before your clients, and get leverage over your competitors.
Status.io - Status.io is a platform for system status pages and status notifications. Companies rely on Status.io to track outages, schedule planned maintenances, broadcast status notifications, and much more; and their customers love the transparency.