Axure Cloud is described as 'Build, Publish and Inspect Prototypes In The Cloud' and is a Prototyping tool in the development category. There are four alternatives to Axure Cloud for a variety of platforms, including Adobe Photoshop, Mac, Online / Web-based, Sketch and SaaS. The best alternative is Marvel, which is free. Other great apps like Axure Cloud are Zeplin, Avocode and Famous.
Zeplin is a collaboration app for UI designers and frontend developers. With this program, you can inspect specs, easily generate assets, export code snippets out of designs, export assets directly from the screen, and more.
Famous is a design tool that allows you to create and publish live progressive web apps. It's the only tool in the market that lets designers generate a live experience without needing to know any code and without needing any engineers.