CrowdGrader vs Expertiza
CrowdGrader
crowdgrader.com
Expertiza
expertiza.ncsu.eduSide by side
| Figure | CrowdGrader | Expertiza |
|---|---|---|
| Price from | $0.17/mo | — |
| Free plan | Yes | — |
| Free trial | Yes | — |
| Open source | — | — |
| Web | Yes | Yes |
| macOS | — | Yes |
| Linux | — | Yes |
| Self-hosted | — | Yes |
| Plans published | 11 | 0 |
| Spec score · Peer Assessment Software | 9.0 (#1) | 7.9 (#6) |
| Purpose | CrowdGrader lets students submit and collaboratively peer-grade homework, while instructors monitor assignments and retain control of final grades. | Expertiza is software for creating reusable learning objects through peer review and supports team projects. |
| Support | The maker's homepage provides a contact email and phone number, and educator testimonials describe responsive help from the founder. | The repository directs developers to setup documentation and invites code contributions through GitHub pull requests. |
Plans
CrowdGrader
- FreeFree
- Free (instructor-sponsored)Free
- Student subscription$1.99 a year
- Student-supported assignment$1.99 a year
- Small$2.99, paid once
- Small (instructor-sponsored)$2.99, paid once
- Medium$6.99, paid once
- Medium (instructor-sponsored)$6.99, paid once
- Large$13.98, paid once
- Large (instructor-sponsored)$13.98, paid once
In their own words
CrowdGrader
CrowdGrader is a web service for students to submit homework and peer-grade classmates’ work while instructors oversee assignments and keep control of final grades. It combines peer assessments into a consensus grade for each submission and removes outliers. A student’s crowd-grade reflects both the grade received and how accurately that student grades other submissions. Students can create reports, math, or code in the built-in editor, or upload files such as ZIP archives. Reviews are anonymous: reviewers do not see authors’ identities, and uploaded files are renamed. Instructors can monitor similarities through clusters and side-by-side submission comparisons. Institutional subscriptions include optional LMS integration, access monitoring, and long-term data retention for auditing. Student work is transmitted over HTTPS; Google authentication uses only the user’s email address for identification. The free instructor-sponsored plan covers up to 20 students per assignment. Other listed options include $2.99 per assignment for up to 35 students, $6.99 for up to 100, and $13.98 for unlimited students.
Expertiza
Expertiza is a free, open-source web application for instructors to deploy assignments and students to submit and peer-review learning objects. Submissions can include articles, code, websites, URLs, and wiki pages; students can also form teams and sign up for topics. The system supports rubric scoring, moderation, one-way reviewer anonymity, and manual review allocation. The project says it is used in select NC State courses and by professors at several other colleges and universities. It can be run locally or deployed to production, with development setup guides for Ubuntu/Debian, macOS, and Linux RHEL. Developers need a JVM. A documented Moodle LTI integration allows assignments to launch from Moodle and sends grades to its gradebook, but setup requires a Moodle administrator to register and activate Expertiza as an external tool provider. The project also describes a generic synchronization interface intended for LMS platforms such as Blackboard or Canvas. The repository lists an MIT license and points to instructor and student manuals, presentations, and videos.