Perusall Review (2026): Pricing, Features & Honest Verdict
TLDR
Perusall is a social learning platform that turns assigned readings, videos, and audio into collaborative annotation exercises while auto-grading student engagement. Genuinely effective for getting students to actually read. Best for: instructors running discussion-heavy courses. Price: free for instructors, students free under a license or up to $30 via Course Choice. Rating: 7.3/10.
What is Perusall?
Perusall is a social annotation tool built for education. Instead of asking students to read a chapter alone and hope they did it, instructors upload a PDF, video, Google Doc, or ebook, and students annotate it together in the margins. They highlight passages, ask questions, reply to each other, upvote good comments, and drop in hashtags, emojis, and GIFs. Reading stops being solitary homework and becomes an asynchronous conversation that happens before class even starts.
The platform was founded by Harvard physics professor Eric Mazur and his collaborators, and it has grown to serve more than 6,000 institutions and 6 million students across 117 countries. It plugs into a catalog of over 1.4 million titles from 54,000+ publishers, and it integrates directly with the major learning management systems so grades flow back automatically. The pitch is simple: students engage more when they read socially, and Perusall has the data and adoption to back that up.
What Are Perusall’s Key Features?
Collaborative Annotation
The core experience is a shared margin. Students annotate the same document, see each other’s comments in real time, reply in threads, and upvote the most useful contributions. The interaction tools (hashtags, quote replies, emojis, GIFs) keep it feeling more like a discussion than a worksheet, which is exactly why participation tends to be higher than with traditional reading assignments.
Automatic Engagement Grading
Perusall scores each student’s engagement automatically using an algorithm that weighs the quality and timing of their annotations, not just the count. Instructors set the parameters once and let the system grade, which removes the biggest pain of running a reading-heavy course. It isn’t perfect and you’ll want to tune the weights, but it saves real hours every week.
Confusion Report
Before class, instructors get a Confusion Report that aggregates the passages and questions students struggled with most. This lets you walk into the room already knowing what to address, turning prep time into targeted teaching instead of guesswork.
LMS Integration and Multimodal Content
Perusall supports PDFs, videos, audio, presentations, and ebooks, and it integrates with Canvas, Blackboard, Moodle, and D2L to sync grades back into the gradebook. It also handles peer review, instructor review, and differentiated assignments, so a single platform covers most of a course’s reading workflow.
How Much Does Perusall Cost?
Perusall is free for instructors, and there are no fees for setting up LTI/LMS integrations. For students, cost depends on context: it’s free when the institution holds a license or when only free materials are assigned. At institutions without a license, the 2024 Course Choice model asks the instructor to set a per-student platform fee between $0 and $30 (the default is $15), with access valid for five months and reusable across courses. Assigned paid textbooks cost the publisher’s list price. Compared with alternatives, Hypothesis is free for individual educators and NowComment is free outright, so Perusall’s value hinges on whether the institution covers the license or the instructor keeps the Course Choice fee low.
| Plan | Price | Plan Features | Best For |
|---|---|---|---|
| Institutional License | Free to students | Institution pays for a site license; no per-student fees for free materials | Colleges and universities standardizing on Perusall campus-wide |
| Course Choice | $0-$30 per student | Instructor sets the platform fee (default $15); access valid 5 months, reused across courses | Instructors at institutions without a license using free or open materials |
| Publisher Content | Textbook list price | Students purchase the assigned copyrighted ebook through the catalog | Courses that adopt a paid textbook from the 54,000+ publisher catalog |
Who Is Perusall Best For?
Use Perusall if you teach a reading-intensive or discussion-based course and want students to actually do the reading and engage with each other. It shines in humanities, social sciences, and any class where close reading and dialogue matter, and the automatic grading makes large sections manageable. It’s also a strong fit when your institution already holds a license, which makes it free for students.
Skip Perusall if your institution lacks a license and you’re unwilling to pass a fee to students, or if your course doesn’t revolve around readings. It’s also overkill if you just need basic PDF markup with no social or grading layer; lighter tools will do that without the setup overhead.
What Are the Best Perusall Alternatives?
Hypothesis
Hypothesis is the closest competitor, offering collaborative web and PDF annotation with strong LMS integration. It’s free for individual educators and emphasizes open annotation across the web, but it lacks Perusall’s automatic engagement-grading algorithm, which is the main reason instructors choose Perusall.
NowComment
NowComment provides free, threaded document discussion with a focus on deep paragraph-by-paragraph conversation. It’s a great no-cost option for collaborative reading, though it doesn’t offer the analytics, grading automation, or publisher catalog that Perusall brings.
Kami
Kami is a PDF annotation and markup tool aimed mostly at K-12 classrooms, with handwriting, drawing, and document tools. Paid plans start around $99/year per teacher. It’s better for individual document work and markup than for the social, graded discussion Perusall is built around.
Final Verdict: Is Perusall Worth It?
Perusall does one thing exceptionally well: it gets students to read and engage by making reading social, and it backs that up with automatic grading that genuinely saves instructors time. The Confusion Report and deep LMS integration round it out into a platform that earns its 6,000-institution footprint. The learning curve is real and the grading algorithm needs tuning, but the payoff in participation is hard to argue with.
The asterisk is cost. If your institution holds a license, Perusall is close to a no-brainer for any reading-heavy course. If it doesn’t, the Course Choice fee shifts the cost onto students, and free alternatives like Hypothesis or NowComment deserve a look first. Recommended for discussion-based courses with institutional backing; weigh the student fee carefully otherwise.
Perusall Pros & Cons
What We Like
- Free for instructors, and free for students when the institution holds a license or assigns only free materials
- Automatic engagement grading with AI-assisted scoring saves hours of manual assessment
- Collaborative annotation layered on PDFs, videos, audio, Google Docs, and a 1.4M-title ebook catalog
- Deep LMS integration (Canvas, Blackboard, Moodle, D2L) that syncs grades back automatically
- Confusion Report surfaces the questions students struggle with most before class
What Could Be Better
- The 2024 Course Choice model now charges students a per-course platform fee (up to $30) when there's no institutional license
- Interface and grading-algorithm setup have a real learning curve for first-time instructors
- Built strictly for education, so it has no use outside a course/classroom context
Perusall FAQ
What is Perusall?
Perusall is a social learning platform where students collaboratively annotate readings, videos, and audio. Classmates comment, reply, upvote, and ask questions in the margins, while instructors automatically grade engagement and see where the class is confused. It's used by over 6,000 institutions and 6 million students worldwide.
How much does Perusall cost?
Perusall is free for instructors and free for students when their institution holds a license or only free materials are assigned. Without a license, the Course Choice model lets the instructor set a per-student platform fee between $0 and $30 (default $15). Paid textbooks from the catalog cost the publisher's list price.
Is Perusall worth it?
For reading-heavy or discussion-based courses, yes. The collaborative annotation genuinely boosts how much students read and engage, and automatic grading saves instructors hours each week. The main drawbacks are the new student platform fee and a setup learning curve.
What are the best Perusall alternatives?
Hypothesis is the closest open alternative for web and PDF annotation, NowComment offers free threaded document discussion, and Kami focuses on PDF markup and annotation for K-12 classrooms.
Does Perusall offer a free plan?
Yes. Perusall is free for instructors and free for students at institutions with a license or when only free materials are used. Costs only appear under the Course Choice model (a per-student platform fee) or when a paid textbook is assigned.
Who is Perusall best for?
Perusall is best for instructors and institutions running reading-intensive or discussion-based courses, from high school through higher education, who want students to engage more deeply with assigned material and want engagement graded automatically.
