Ably — Ably is a reliable real-time messaging and event streaming infrastructure platform for building mission-critical live features in applications. It provides guaranteed message delivery, ordering, and persistence with pub/sub, presence, and push notification capabilities at massive scale. (Freemium) (alternatives) · official website
Adalo — Adalo is a no-code platform for building native mobile and web applications with a drag-and-drop visual builder, integrated database, and app publishing capabilities. It enables non-developers to create and publish fully functional apps to the App Store and Google Play. (Freemium) (alternatives) · official website