Peerceptiv vs. CoStudy: Two approaches to peer evaluation.
Peerceptiv has been in the peer assessment space for over 20 years, originating as SWoRD at the University of Pittsburgh. Its patented grading algorithm is backed by serious academic research. Here's how it compares to CoStudy.
A note on Peerceptiv: Peerceptiv (formerly SWoRD) was developed by researchers at the University of Pittsburgh and represents two decades of academic research on peer assessment. Their patented algorithm for weighting reviewer accuracy is a genuine contribution to the field. We respect the research foundation they have built.
Feature comparison
| Feature | Peerceptiv | CoStudy |
|---|---|---|
| Peer review of writing | ||
| Group teammate evaluation | ||
| Student cost | ||
| Professor cost | ||
| Canvas LTI 1.3 | ||
| Roles-based evaluation | ||
| Mid-project check-ins | ||
| Team health dashboards | ||
| Patented grading algorithm | ||
| Research validation | ||
| Modern UX | ||
| Active development |
What Peerceptiv gets right
20+ years of published peer-reviewed research validation. No other platform in this space has this depth of evidence backing its approach.
Patented grading algorithm that weights reviews by accuracy, down-weighting outliers. This reduces the impact of lazy or retaliatory reviews on final scores.
Strong writing-focused peer review. If your primary use case is improving student writing through structured peer feedback, Peerceptiv has deep expertise here.
Used at major research universities including Pitt, Texas A&M (100+ courses), UVA, Michigan, and UCLA, with proven scalability across large programs.
Where CoStudy is different
Modern interface, fast setup
UVA faculty rated Peerceptiv's ease of setup at 2.33/5 and accessibility at 1.00/5. Faculty have described the interface as counter-intuitive. CoStudy is a modern web app. Professors run their first assessment in under 15 minutes. Students complete evaluations in under 5.
Built for group dynamics, not writing review
Peerceptiv's strength is peer review of written submissions. CoStudy is purpose-built for evaluating how teammates collaborate on group projects. Different problems, different tools. If you need writing review, Peerceptiv may be the better fit.
No student fees
Peerceptiv charges approximately $15 per student unless your institution has a campus-wide license. CoStudy never charges students. One free course per year per professor, with no cost passed to students under any pricing tier.
Real-time team visibility
CoStudy gives professors live dashboards showing team health across sections. Mid-project check-ins surface dysfunction early. Peerceptiv's dashboards show assignment progress, not team dynamics.
Roles-based evaluation
CoStudy evaluates students based on their specific team role. The designer is evaluated on design contribution. The coordinator is evaluated on organization. Peerceptiv applies uniform peer review criteria regardless of what each student actually did on the team.
Considering a switch?
We'll help you get set up. Most professors are running their first CoStudy assessment within 15 minutes. Book a call and we'll walk you through the transition.