When comparing UX-App vs Figma, the Slant community recommends Figma for most people. In the question“What are the best mockup and wireframing tools for websites?” Figma is ranked 5th while UX-App is ranked 26th.
Ranked in these QuestionsQuestion Ranking
Pros
Pro Prototype with graphical JavaScript
UX-App uses a drag and drop puzzle like JavaScript representation. Unique and expressive
Pro Mock up & prototype in the browser
Allows you to mock up with real HTML, and present expressive prototypes in the browser. Has lots of conveniences like team chat, notes, and a share link to present prototypes.
Pro Long free trial & cheap subscription
It's possible to start without creating an account. Creating a free account extends the trial, and the memberships are cheap @ $5/month.
Pro Works in the browser
Pro Allows for real time collaboration
Pro Live previews for mobile
Mirrors your designs to your phone in realtime.
Pro Has all the core functionality you'd expect from something like Sketch
Pro Integrates with Slack
Provides integration with Slack.
Pro Provides a free version
Does not require a paid subscription for use. Can be used freely with a lot of features. The free use allows very limited collaboration.