About Us

Crowdgrader was funded in 2018 by a team of university professors in order to bring these technologies, developed and utilized in their own classes, to a larger audience.

Built on Experience

Our applications were originally built by the founders to improve their students' experiences and have been used for years in their own classrooms. We are now making these applications available to a wider audience.

Proven Results

Both Peer and SCuiz improve student engagement and participation, while at the same time allowing the educator to better monitor the work of the students and shift time from tedious tasks to more costructive activities.

Meet Our Team

Mark Billion

Chief Operating Officer

A rare example of an experienced lawyer who is also a software developer.

Anthony Bastardi

Lead Software Engineer

Anthony is one of the lead developers of web2py, one of the tools used as afundation of our systems.

Luca de Alfaro


Professor of Computer Science and Engineering at UC Santa Cruz. Accomplished scientist and developer. Originally developed Peer.

Massimo Di Pierro


Professor of Computer Science at DePaul University. Inventor of web2py. Original developed SCuiz.

What Students and Educators Are Saying

I have been using CrowdGrader in my classes for several semesters now. It is a life-saver, helping me cope with large student numbers that would otherwise consume significant amounts of teaching-assistant-time (that I'd prefer to use in different ways). Without CrowdGrader, we would not be able to sustain our curriculum in its current form but rather would have to shrink it significantly. To the existing testimonials, I'd like to add that the CrowdGrader support, specifically Luca de Alfaro, who I have been working with, is stellar. He was able to solve any problem I had quickly and fully, even while in free fall on the Double Black Diamond slopes of Lake Tahoe's skiing areas. read more

Dirk Riehle Professor, Friedrich-Alexander University of Erlangen-Nürnberg, Germany

I've used CrowdGrader in two courses so far, allowing me to assign essay questions for 15 case studies to more than 50 students. Without CrowdGrader, it would have been impossible to evaluate so many essay responses and it would have been necessary to limit the scope of the class. Luca de Alfaro, the founder, was always very responsive to my questions and requests. read more

Kai Pommerenke Lecturer, Economics Department University of California, Santa Cruz

CrowdGrader has fundamentally changed the way I teach. Before, assigning classes of 80 students writing assignments due before each class period was a tactical and grading nightmare. Now it ensures that the vast majority of my students show up to class having read, processed, and analyzed the assigned readings. Moreover, the peer grading process requires that students continue to think about the material after the class period and provides students who didn’t do the reading before class an incentive to get caught up so that they can gain some points by accurately grading their peers’ work. Using CrowdGrader for writing assignments is particularly helpful for large and diverse classes because it allows students to:
1. learn how their peers approached the same topics,
2. improve their writing skills through both peer feedback and observing the varying quality of their classmates’ memos, and
3. develop the skill of providing helpful evaluations of others’ work.
4. Additionally, CrowdGrader is easy to use and Luca, the creator, is incredibly helpful if you have questions or suggestions for improvement.
read more

Kate Gunby PhD Candidate, School of Sociology, University of Arizona

CrowdGrader was an excellent addition to UC Berkeley's course on the social implications of computing. The system was great, and peer grading really works. Our students took their essay assignments seriously, completed their peer reviews, and provided useful comments to each other. read more

John DeNero University of California, Berkeley

Our Pricing

Our tools are free to try. No credit card is needed. At the end of the trial period we offer different exclusive payments options:

Institutional: If your institution subscribes, there is no charge for teachers or students of that institution. Institutional access, monitoring, and long term data retention for auditing all come with an institutional subscription. We also offer optional integration with existing Learning Management Systems.

Educators: If the institution does not have an institutional plan, the educator can pay per use (after the trial period). In this case there is no charge to students.

Students: If the institution does not have an institutional plan, the teacher can configure the system to charge students. In this case there is no charge to the educator.


Educator Price Student Price
Cost per assignment Max number of students
Free up to 20 students
$2.99 up to 35 students
$6.99 up to 100 students
$13.98 unlimited
Cost Subscription length
Free 3-week trial
$1.99 six months


SCuiz, unlike CrowdGrader, is priced on a per-class basis:
Educator Price Student Price Enrollment limit
$23.99 $2.39 100 students

Institutional Pricing

Contact us for institutional pricing, discounts, and larger class sizes.

Contact Us