Quick answer
Quant-UX - Quant-UX wins for most builders who want a free, no-expiration prototype testing tool, while UXPin wins only if you need code-backed design workflows and are willing to pay once you outgrow the small free cap.
How the free tiers compare
The main difference is not just price, but what the free tier is for. Quant-UX is an always-free research and testing tool with unlimited prototypes, unlimited user tests, collaboration, analytics, and questionnaires, so it is built to stay usable as your needs grow. UXPin’s free tier is more of a starter sandbox: 2 prototypes, 50 AI credits per month, 7 days of version history, and a few bundled components. It is better if you want higher-fidelity interaction design, coded libraries, and a path into design-system-aware workflows. Once you move past the free tier, UXPin becomes a paid SaaS with clear flat monthly plans, starting at $29/month. Quant-UX has no paid plans listed here, so there is no comparable upgrade path shown in the provided data.
Quant-UX vs UXPin free tier, side by side
| Quant-UXFTV 90 | UXPinFTV 59 | |
|---|---|---|
| PrototypesQuant-UX lists unlimited prototypes in the free tier; UXPin caps the free tier at 2 prototypes. | Unlimited | Up to 2 |
| User testsQuant-UX includes unlimited user tests. No user-test quota is provided for UXPin in the supplied data. | Unlimited | Not stated |
| AI credits per monthUXPin free tier includes 50 AI credits per month. | Not stated | 50 |
| Version historyUXPin free tier includes 7 days of version history. | Not stated | 7 days |
| Preview accessThe products expose prototypes differently, with UXPin explicitly including password-protected preview. | Link sharing / tests | Password-protected preview |
| CollaborationQuant-UX includes real-time collaboration in the free tier. | Real-time collaboration | Not stated |
| AnalyticsQuant-UX includes analytics access in the free tier. | Included | Not stated |
| QuestionnairesQuant-UX includes questionnaires in the free tier. | Included | Not stated |
After you outgrow the free tier
Quant-UX is listed as always free and no paid plans are shown, so the provided data does not show an upgrade price or a paid ladder. UXPin uses flat monthly pricing after the free tier, starting at Core for $29/month, then Growth at $40/month, with Enterprise as custom pricing. For most small teams, UXPin’s cost jumps are predictable and plan-based, while Quant-UX stays free in the supplied information. There are no usage-based rates in the data, so no per-unit scenarios can be calculated for either product.
When to pick each one
Pick Quant-UX when…
- You want to run unlimited usability tests without hitting a monthly cap.
- You need a free tool for sharing prototypes, collecting feedback, and reviewing analytics in one place.
- You are a solo builder or small team that wants to stay on the free tier indefinitely.
- You care more about research and validation than about code-driven design system workflows.
Pick UXPin when…
- You need to build high-fidelity interactive prototypes with states, variables, and conditional logic.
- You want built-in coded libraries, Git or Storybook-style workflows, or React-oriented handoff.
- You only need a small number of prototypes and can work within a capped free tier.
- You expect to pay for a design tool and want a clear ladder from free to Core or Growth.
Bottom line
For the most common builder use case, Quant-UX is the better pick because it gives you an uncapped free tier for prototyping and user testing, with no stated expiration. UXPin is the choice when the free tier is just a trial runway and you specifically need richer interactive prototyping, coded libraries, and design-system workflows. If you are choosing based on free-tier longevity, Quant-UX is the safer default. If you are choosing based on fidelity and a structured paid path, UXPin is the stronger fit.
Read the full listings: Quant-UX and UXPin. Scores use the FTV methodology at /ftv. Browse more head-to-heads on /compare, or see the top-ranked free tiers on /top.