Kuzzle might be a bit more popular than OutSystems. We know about 2 links to it since March 2021 and only 2 links to OutSystems. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.
This month, I followed in the footsteps of many other OutSystems developers and completed the exam to become a certified Associate Reactive Developer. This exam focuses on the fundamentals of OutSystems reactive web and mobile application development, and is for developers new to the OutSystems platform. - Source: dev.to / about 2 months ago
Check out the AWS Architecture Blog to see how OutSystems designed a globally distributed serverless request routing service for its multi-tenant architecture. Source: about 3 years ago
You can try https://kuzzle.io/, the platform is a highly scalable Node.js application and include it's own realtime engine in C++. Source: almost 2 years ago
Also I recommend you to use foreign-key database structure, instead of documents. To my opinion it suits better to Parse Server. If you wanna use documents, you could try kuzzle also good solution! Source: about 3 years ago
Mendix - Mendix is the fastest and easiest low-code platform used by businesses to create and continuously improve mobile and web apps at scale.
Firebase - Firebase is a cloud service designed to power real-time, collaborative applications for mobile and web.
Zoho Creator - Zoho Creator is a low-code application development platform that helps you build a custom, mobile-ready apps to run your business.
Back4App - Low code backend to build apps faster and scale easily.
Xamarin - Create iOS, Android and Mac apps in C#
Parse - Build applications faster with object and file storage, user authentication, push notifications, dashboard and more out of the box.