Alloy vs Justinmind
Alloy
alloy.appJustinmind
justinmind.comSide by side
| Figure | Alloy | Justinmind |
|---|---|---|
| Price from | $20/mo | $19/mo |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | — | Yes |
| Windows | — | Yes |
| macOS | — | Yes |
| iOS | — | Yes |
| Android | — | Yes |
| API | — | Yes |
| Self-hosted | — | Yes |
| Plans published | 3 | 8 |
| Spec score · Prototyping Software | 8.9 (#5) | 9.2 (#2) |
| Spec score · Prototyping tools | 8.5 (#12) | 9.4 (#2) |
| Free plan | Yes | Yes |
Plans
Justinmind
- FreeFree
- Standard$19 a month
- Professional$29 a month
- Enterprise$59 a month
- Standard$295, paid once
- Standard perpetual$295, paid once
- Professional$455, paid once
- Professional perpetual$455, paid once
In their own words
Alloy
Alloy is a product prototyping and user-testing platform that can work from a connected codebase or capture pages through a browser extension. With a codebase connected, it can run an app and show changes live in a browser. Teams can make interactive prototypes, share them, run sessions and collaborate. The Free plan includes $5 credits per user per month, unlimited sessions and viewers, and 30+ integrations. Alloy lists Linear, Jira, Slack and Intercom among its integrations. Sessions can be exported, accessed through MCP or turned into GitHub pull requests; teams can also push changes to a pull request and roll them out to customers. The browser extension needs no setup. Connecting a codebase requires admin permissions and about 15 minutes. Free has standard support, Pro has priority support, and Enterprise has 24/7 support. Pro costs $20 per user per month. Enterprise pricing is custom and includes API access, an account manager, custom terms, and SAML + SCIM.
Justinmind
Justinmind is an interaction design and prototyping tool for web and mobile apps. It supports wireframes, high-fidelity prototypes and simulations, with web interactions, mobile gestures, action sequences and conditions built without code. Teams can model interactive forms, data lists and grids, while simultaneous editing and version control support shared work. UI kits, synchronized components, templates and masters provide ways to reuse design assets. Prototypes export as interactive HTML, and assets as SVG or PNG; the API can generate specification assets. Deployment options include cloud, self-hosted, desktop and mobile, and integrations include Figma, Adobe XD, Sketch, JIRA and Azure DevOps. The Free plan is $0 per editor/month and includes unlimited screens but only one project. Standard is $19 per editor/month, Professional is $29 per editor/month and Enterprise is $59 per editor/month. A 10-day trial is listed. Plans include a free option, and the product is presented for design teams, business analysts and developers working on UI assets and handoff.