The best alternatives to Non existing product are Bubble, Cube.js, and Remake. If these 3 options don't work for you, we've listed a few more alternatives below.
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Bubble is a software development platform that enables anyone to build and launch web and mobile applications without writing code. Rather than specializing in one or two aspects of development (like designing landing pages or building databases), Bubble’s full-stack visual programming interface does it all. That means anyone from first-time founders to enterprises can take an idea from concept to fully functional, scalable reality — faster and cheaper than you could with just code.
Cube.js is an open-source, modular framework for building analytics into your web apps. You can use Cube.js for internal business intelligence tools, or customer-facing analytics.
Remake changes the way web apps are built. Have you ever wanted to launch an idea the same day that you think of it? With Remake's easy to learn syntax and a little work, you can now launch a web app in couple hours!
Redwood is an opinionated, full-stack, JavaScript/TypeScript web app framework designed to keep you moving fast as your app grows from side project to startup. With React, GraphQL, Prisma, Storybook, and Jest all integrated, you can focus on building your app!