Fluid UI vs Principle
Fluid UI
fluidui.comPrinciple
principleformac.comSide by side
| Figure | Fluid UI | Principle |
|---|---|---|
| Price from | $8.25/mo | — |
| Free plan | Yes | — |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| Windows | Yes | — |
| macOS | Yes | Yes |
| Linux | Yes | — |
| iOS | Yes | Yes |
| Android | Yes | — |
| Plans published | 7 | 0 |
| Spec score · Interface Design Tools | 8.8 (#7) | 5.7 (#26) |
Plans
Fluid UI
- Solo$8.25 a month
- Pro$19.08 a month
- Team$41.58 a month
- FreeFree
- Solo$99 a year
- Pro$229 a year
- Team$499 a year
In their own words
Fluid UI
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.
Principle
Principle has no write-up on Specifiction yet; its figures are above.