Fluid UI vs UXPin

Fluid UI is a web-based tool for making, previewing, sharing, and exporting mobile app mockups. It supports interactive web and mobile prototypes with taps, swipes, clicks, and other gestures, plus page effects such as fades, flips, and pop-ins. The built-in library contains more than 2,000 components spanning Material Design, iOS, Windows, and wireframe styles. Teams can collaborate on cloud-saved projects in real time. Reviewer mode supports shared click-throughs, chat, annotations, and comments, and the service also supports remote user testing sessions. Fluid UI runs in Firefox and Chrome, offers an installable desktop client, and has Android and iOS preview apps. There is a free plan and a free trial. Paid plans include Solo at $8.25 a month for five active projects, one user license, and unlimited reviewers; Pro is $19.08 a month, and Team is $41.58 a month.

UXPin is a design and prototyping platform for creating interactive prototypes with states, logic, conditional flows, variables, and dynamic content. It runs on the web and has UXPin apps for Mac and Windows, plus Mirror apps for iOS and Android. Core includes conditional logic, variables, and expressions, along with built-in coded libraries such as MUI, Tailwind UI, and Ant Design. Teams can share prototypes with unlimited viewers and commenters, and use public or team comments. Integrations include Slack, FullStory, Jira, Storybook, and Git, with a Figma plugin and Sketch import also listed. The Free plan allows two prototypes and 50 AI credits. Core costs $49 a month per seat when billed monthly, or $29 a month per seat billed yearly; Growth costs $69 a month per seat, or $40 a month per seat billed yearly. Core includes 200 monthly AI credits and seven-day version history, while Growth includes 500 monthly credits, 30-day history, roles and permissions, SSO, and 2FA. A 14-day trial is available.