Justinmind vs Pencil Project
Justinmind
justinmind.com
Pencil Project
pencil.evolus.vnSide by side
| Figure | Justinmind | Pencil Project |
|---|---|---|
| Price from | $19/mo | Free |
| Free plan | Yes | Yes |
| Free trial | — | — |
| Open source | — | — |
| Web | Yes | — |
| Windows | Yes | Yes |
| macOS | Yes | Yes |
| Linux | — | Yes |
| iOS | Yes | — |
| Android | Yes | — |
| API | Yes | — |
| Self-hosted | Yes | — |
| Plans published | 8 | 1 |
| Spec score · Wireframing Software | 9.2 (#1) | 7.8 (#16) |
| Spec score · Ui Ux Designing Software | 9.3 (#1) | 7.9 (#16) |
| Spec score · Web Design Software | 9.1 (#2) | 7.8 (#27) |
| Spec score · UI design tools | 9.2 (#2) | 7.7 (#28) |
| Spec score · Game UI Design Software | 9.2 (#2) | 7.8 (#25) |
| Spec score · Prototyping Software | 9.2 (#2) | 7.8 (#24) |
| Spec score · Prototyping tools | 9.4 (#2) | 7.6 (#27) |
| Spec score · Interface Design Tools | 9.3 (#2) | 7.8 (#17) |
| Spec score · Wireframe Tools | 9.2 (#2) | 7.8 (#17) |
| Spec score · UI/UX Design Tools | 9.2 (#3) | 7.8 (#21) |
| Free plan | Yes | Yes |
| Support | The pricing page includes customer support portal access, and Enterprise lists priority support. | The site invites users to support continued development through donations. |
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
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.
Pencil Project
Pencil Project is a free, open-source desktop tool for creating GUI mockups, wireframes, and diagrams. Built-in stencil collections cover desktop, web, Android, and iOS interfaces; connectors and flowchart shapes support diagramming. Elements can link to pages in the same document, and those links become hyperlinks in web exports. Drawings can be exported as PNG files, web pages, OpenOffice or LibreOffice text documents, Inkscape SVG, or Adobe PDF. A clipart browser connected to OpenClipart.org lets users add vector clipart by dragging it into a project. Stencil collections and export templates can be installed as add-ons. Pencil runs on Linux, macOS, and Windows, with downloads for Fedora and Ubuntu, other GNU/Linux distributions, Windows, and macOS. The macOS DMG supports Intel and Apple Silicon. Pencil is published under GNU General Public License version 2; Evolus also describes a commercial source-code license. The site identifies version 3.1.1 as the latest stable release and warns that nightly development builds are unstable. It provides a SHA-1 checksum link for download verification and invites donations to support development.