Cost / License
- Free
- Open Source
Application type
Platforms
- Mac
- Windows
- Linux
- Online
Apps similar to Flexible Datasync include Supabase, which is open source with a free version. Other options are Firebase, Meteor, remoteStorage and GUN. There's no shortage of Backend as a Service like Flexible Datasync, with more than 50 alternatives for the web, Mac, Windows, Linux and Android.
Expressive middleware for node.js using generators via co to make web applications and APIs more enjoyable to write. Koa's middleware flow in a stack-like manner allowing you to perform actions downstream, then filter and manipulate the response upstream.
restdb.io is a Plug-and-Play Database Service, suited perfectly to power business apps and dynamic web content.



CloudBoost can power your app's backend, including data storage, user authentication, real-time notifications, search and more.

Low code backend to build modern apps. Back4app accelerate backend development, improves development productivity, reduces time to market, and let you scale applications without managing infrastructure.




Grow and scale your games effortlessly with Nakama. Heroic Cloud ensures your Nakama servers are always available, regularly backed up and can be scaled up in a moment's notice for your games and apps.



Real-time communication service for connecting online devices. Infrastructure and APIs for IoT, gaming, apps and real-time web.

Pedestal is a web application framework written in Clojure that aims to bring both the language and its principles to client and server-side development.
SapphireDb is an open source library that enables you to easily create your own application with realtime data synchronization. It extends your Asp.Net Core Application with EF Core and combines the advantages of firebase and .Net Core together.

The Appcelerator platform is everything you need to create great, native mobile apps—all from a single JavaScript code base.



