Best Fluid UI Alternatives in 2026
Updated
20 apps from UI design tools ranked against Fluid UI on the same published basis.
- 1Fluid UI vs Mockplus
- 2Fluid UI vs UXPin
- 3Fluid UI vs Justinmind
- 4Fluid UI vs ProtoPie
- 5Fluid UI vs Marvel
- 6Fluid UI vs Proto.io
- 8Fluid UI vs Sketch
- 9Fluid UI vs Penpot
- 10Fluid UI vs Lunacy
- 11Fluid UI vs Wondershare Mockitt
- 12Fluid UI vs Visily
- 13Fluid UI vs Origami Studio
- 14Fluid UI vs Figma Slides
- 15Fluid UI vs Moqups
- 16Fluid UI vs Quant-UX
- 17Fluid UI vs Uizard
- 18Fluid UI vs Axure RP
- 19Fluid UI vs Principle
- 20Fluid UI vs Flinto
- 21Fluid UI vs MockFlow
Fluid UI alternatives compared
| # | App | Score | Free plan | From | Runs on |
|---|---|---|---|---|---|
| 1 | Mockplus | 9.7 | Free plan | $2.48/mo | Android, iOS, Mac, Web, Windows |
| 2 | UXPin | 9.4 | Free plan | $29/mo | Android, iOS, Mac, Web, Windows |
| 3 | Justinmind | 9.2 | Free plan | $19/mo | Android, API, iOS, Mac, self-hosted, Web, Windows |
| 4 | ProtoPie | 9.0 | Free plan | $25/mo | Android, API, iOS, Mac, self-hosted, Web, Windows |
| 5 | Marvel | 8.8 | Free plan | $12/mo | Android, API, iOS, Web |
| 6 | Proto.io | 8.7 | Free plan | $29/mo | Android, iOS, Web |
| 8 | Sketch | 8.4 | No | — | iOS, Mac, Web |
| 9 | Penpot | 8.1 | Free plan | $7/mo | API, self-hosted, Web |
| 10 | Lunacy | 8.0 | Free plan | $1/mo | Linux, Mac, self-hosted, Web, Windows |
| 11 | Wondershare Mockitt | 7.9 | Free plan | $10/mo | Web, Windows, Mac, Linux |
| 12 | Visily | 7.8 | Free plan | $14/mo | Browser, Web |
| 13 | Origami Studio | 7.5 | No | — | Mac, iOS, Android |
| 14 | Figma Slides | 7.4 | No | $3/mo | Android, iOS, Linux, Mac, Web, Windows |
| 15 | Moqups | 7.3 | Free plan | $7/mo | Browser, Web |
| 16 | Quant-UX | 7.2 | Free plan | Free | self-hosted, Web |
| 17 | Uizard | 7.2 | Free plan | $3.25/mo | Browser, Web |
| 18 | Axure RP | 6.9 | No | $29/mo | Mac |
| 19 | Principle | 6.9 | No | $99/mo | Web, Mac, iOS |
| 20 | Flinto | 6.8 | No | $99/mo | Mac, iOS |
| 21 | MockFlow | 6.7 | Free plan | Free | Browser, Mac, Web, Windows |
Make your app an alternative to Fluid UI
See the priceThe sponsored alternative slot on this page is labelled Sponsored.
Questions about Fluid UI alternatives
What is the best alternative to Fluid UI?
Mockplus, number 1 in UI design tools with a score of 9.7 out of 10. The others here: UXPin, Justinmind, ProtoPie and 16 more.
What is the best free alternative to Fluid UI?
Mockplus is the best-ranked alternative with a free plan. 14 of the 20 alternatives here publish a free plan on their own pricing pages.
How are these alternatives ranked?
Ranked mobile-first: a phone app alongside the web or desktop product, a free tier and the depth of its documentation.