Best Prototyping Software in 2026
Updated
In short: Fluid UI is ranked #1 of 30 as of 4 October 2026, ahead of Justinmind and Mockplus. The best-ranked option with a free plan is Justinmind. The lowest first paid tier on this page is Mockplus at $2.48/mo.
From sketching screens to sharing a clickable flow, prototyping tools can support different parts of your design process. Compared on interactive prototypes, conditional logic, prototype sharing, user testing, and team collaboration, the entries give you several criteria for judging how a tool might fit your work. Platform support can help narrow where you can use it; free-plan availability and paid-from pricing add cost considerations. Fluid UI, Justinmind, and Mockplus are among the options shown, alongside Proto.io and ProtoPie. Think about whether your priority is building interactions, reviewing them with others, or gathering feedback, then weigh those needs against the listed capabilities.
30 prototyping software ranked on what their makers publish — plans and prices, free tiers, platforms and the facts on their own pages.
Recognised 40% · Phone app 26% · Documented 20% · Free plan 14% of the score
- 1 Fluid UI iPhone + Android RecognisedPhone appDocumentedFree plan 7.8$8.25/mo
- 2 Justinmind iPhone + Android RecognisedPhone appDocumentedFree plan 7.8$19/mo
- 3 Mockplus iPhone + Android RecognisedPhone appDocumentedFree plan 7.8$2.48/mo
- 4 Proto.io iPhone + Android RecognisedPhone appDocumentedFree plan 7.8$29/mo
- 5 ProtoPie iPhone + Android RecognisedPhone appDocumentedFree plan 7.8$25/mo
- 6 UXPin iPhone + Android RecognisedPhone appDocumentedFree plan 7.8$29/mo
- 7 Marvel iPhone + Android RecognisedPhone appDocumentedFree plan 7.7$12/mo
- 8 Figma Slides iPhone + Android RecognisedPhone appDocumentedFree plan 7.4$3/mo
- 9 Mockapp iPhone + Android RecognisedPhone appDocumentedFree plan 6.8 Interactive prototypes: YesUser testing: Yes
- 10 ProtoSketch iPhone only RecognisedPhone appDocumentedFree plan 6.8 Interactive prototypes: No
- 11 Kite Compositor iPhone only RecognisedPhone appDocumentedFree plan 6.5$99/mo
- 12 Origami Studio iPhone + Android RecognisedPhone appDocumentedFree plan 6.5
- 13 Principle iPhone only RecognisedPhone appDocumentedFree plan 6.5$99/mo
- 14 Flinto iPhone only RecognisedPhone appDocumentedFree plan 6.4$99/mo
- 15 Alloy No phone app RecognisedPhone appDocumentedFree plan 6.3$20/mo Interactive prototypes: YesUser testing: Yes
- 16 PrototypeTool No phone app RecognisedPhone appDocumentedFree plan 6.3$29/mo Interactive prototypes: YesConditional logic: YesUser testing: Yes
- 17 Visily No phone app RecognisedPhone appDocumentedFree plan 6.3$14/mo
- 18 Moqups No phone app RecognisedPhone appDocumentedFree plan 6.2$7/mo
- 19 Uizard No phone app RecognisedPhone appDocumentedFree plan 6.1$3.25/mo
- 20 NinjaMock No phone app RecognisedPhone appDocumentedFree plan 6.0Free
- 21 Wondershare Mockitt No phone app RecognisedPhone appDocumentedFree plan 6.0$10/mo
- 22 Frame0 No phone app RecognisedPhone appDocumentedFree plan 5.9$79/mo
- 23 Quant-UX No phone app RecognisedPhone appDocumentedFree plan 5.9Free
- 24 Axure RP No phone app RecognisedPhone appDocumentedFree plan 5.5$29/mo
- 25 ForeUI No phone app RecognisedPhone appDocumentedFree plan 5.4€130/mo
Compare all 25 in a table
| # | App | Score | Free plan | From | Free plan | Paid from | Interactive prototypes | Conditional logic |
|---|---|---|---|---|---|---|---|---|
| 1 | Fluid UI | 7.8 | Free plan | $8.25/mo | Yes | — | — | — |
| 2 | Justinmind | 7.8 | Free plan | $19/mo | Yes | — | — | — |
| 3 | Mockplus | 7.8 | Free plan | $2.48/mo | Yes | 5.95 /user/mo | — | — |
| 4 | Proto.io | 7.8 | Free plan | $29/mo | Yes | — | — | — |
| 5 | ProtoPie | 7.8 | Free plan | $25/mo | Yes | — | — | — |
| 6 | UXPin | 7.8 | Free plan | $29/mo | Yes | 29 /user/mo | — | — |
| 7 | Marvel | 7.7 | Free plan | $12/mo | Yes | 12 /user/mo | — | — |
| 8 | Figma Slides | 7.4 | No | $3/mo | Yes | 3 /user/mo | — | — |
| 9 | Mockapp | 6.8 | No | — | Yes | — | Yes | — |
| 10 | ProtoSketch | 6.8 | No | — | Yes | — | No | — |
| 11 | Kite Compositor | 6.5 | No | $99/mo | No | — | — | — |
| 12 | Origami Studio | 6.5 | No | — | Yes | — | — | — |
| 13 | Principle | 6.5 | No | $99/mo | No | — | — | — |
| 14 | Flinto | 6.4 | No | $99/mo | No | — | — | — |
| 15 | Alloy | 6.3 | Free plan | $20/mo | Yes | 20 /user/mo | Yes | — |
| 16 | PrototypeTool | 6.3 | Free plan | $29/mo | Yes | — | Yes | Yes |
| 17 | Visily | 6.3 | Free plan | $14/mo | Yes | 11 /user/mo | — | — |
| 18 | Moqups | 6.2 | Free plan | $7/mo | Yes | 7 /user/mo | — | — |
| 19 | Uizard | 6.1 | Free plan | $3.25/mo | Yes | 12 /user/mo | — | — |
| 20 | NinjaMock | 6.0 | Free plan | Free | Yes | — | — | — |
| 21 | Wondershare Mockitt | 6.0 | Free plan | $10/mo | Yes | 10 /user/mo | — | — |
| 22 | Frame0 | 5.9 | Free plan | $79/mo | Yes | — | — | — |
| 23 | Quant-UX | 5.9 | Free plan | Free | Yes | — | — | — |
| 24 | Axure RP | 5.5 | No | $29/mo | No | 29 /user/mo | — | — |
| 25 | ForeUI | 5.4 | No | €130/mo | No | — | — | — |
Is your app on this list?
Numbered spots on this list can be sponsored, and a sponsored row is labelled as paid.
Questions about this list
Which prototyping software is ranked first on Samsung Mobile US Press?
Fluid UI is ranked #1 of 30 with a score of 7.8. Justinmind is second and Mockplus third.
How many of these have a free plan?
16 of the 25 on this page publish a free plan on their own pricing pages.
Which is the cheapest paid option?
On this page, Mockplus has the lowest first paid tier we found: $2.48/mo.
How is this list ranked?
Ranked mobile-first: a phone app alongside the web or desktop product, a free tier and the depth of its documentation.