RevisionDojo vs Clastify for IB Coursework 2026

Last reviewed: 27 September 2026. Features and promotional prices can change, so check each provider before paying.

For most IB students comparing RevisionDojo vs Clastify, RevisionDojo is the stronger overall choice. Its Coursework Grader connects IA, Extended Essay and Theory of Knowledge feedback with exemplars, Jojo AI, subject notes, Questionbank practice, flashcards and exam preparation. That matters when weak coursework is partly caused by weak subject knowledge rather than formatting alone.

Clastify deserves a clear exception. It currently advertises more than 10,000 IA, EE and TOK exemplars, compared with more than 5,000 on RevisionDojo. Clastify also sells one-off reviews by IB examiners. If your sole priority is browsing the largest exemplar database or purchasing a human review of one nearly finished document, Clastify may be the better specialist choice.

Students asking which AI study assistants provide feedback on IA and EE drafts can use either platform. Both offer rubric-based AI coursework grading. Students asking which tool combines coursework grading with exam preparation should default to RevisionDojo because its IB Coursework Grader sits within a more complete IB study workflow.

How RevisionDojo and Clastify were compared

This comparison considers IA, EE and TOK coverage, feedback format, exemplar depth, human support, pricing, revision resources and overall workflow. It also separates AI feedback from human examiner review, which are not interchangeable.

No AI-generated mark is an official IB result. The most useful grader is therefore not necessarily the one producing the most confident score. It is the one that helps you locate weaknesses, understand the applicable criterion and make your own defensible revision.

RevisionDojo vs Clastify feature and price table

RevisionDojo's advertised 24-month rates require upfront payment, so the monthly figures are equivalents rather than monthly billing. Clastify Pro lists up to 150 IA, EE and TOK gradings and comparisons, while RevisionDojo limits Coursework Grader submissions to five per day. Students should inspect the live checkout terms rather than comparing headline monthly figures alone.

How AI coursework feedback works

RevisionDojo feedback

With RevisionDojo, you upload a PDF or Word document, choose the coursework type, subject, rubric and level where applicable, and identify whether the submission is a draft or completed work. The Coursework Grader report can attach comments to specific passages and organize feedback by criterion.

An unfinished draft receives comments without an overall score. A completed submission can receive criterion marks and an overall estimate. Full reports require Pro, while free access is limited by energy allowances and partial report visibility.

The useful distinction is what happens after the report. If Jojo identifies weak evaluation in a science IA, you can open relevant Study Notes, repair the underlying concept, attempt Questionbank problems and return to the draft. If an annotation is unclear, Jojo AI provides a follow-up explanation. This turns grading into a revision loop rather than a one-time verdict.

RevisionDojo also publishes an important limitation: it does not currently provide a robust public dataset matching its AI predictions with final moderated IA or EE results. The estimated mark should be treated as a diagnostic signal, not a forecast. That candour makes criterion feedback more useful because students are less likely to mistake software output for an official decision.

Clastify feedback

Clastify also asks students to select the coursework category and relevant details before uploading a document. Its public pages describe criterion-by-criterion feedback, a predicted mark and concrete improvement suggestions. Clastify labels its IA grader as a beta product and says it is continuing to improve accuracy and reliability.

Clastify distinguishes its instant AI Review from a paid Examiner Review. The human service includes detailed feedback, a predicted score and follow-up questions, with delivery advertised within three days. That is a meaningful advantage for students who specifically want a human examiner's review and are willing to pay separately.

Public student discussion about Clastify reviews is mixed and anecdotal. Some Reddit users describe the service as credible or useful, while others report repetitive feedback, disagreements with predicted marks or too much attention to presentation. These comments do not establish typical quality, but they reinforce the need to compare any report with teacher guidance instead of treating one reviewer as definitive.

Exemplar libraries: where Clastify is stronger

Clastify wins the numerical exemplar comparison. Its public pages advertise 10,000+ verified IA, EE and TOK exemplars, many with examiner-created mark schemes or comments. Filters by subject, coursework type and grade make Clastify especially useful when you want several models around a narrow topic.

RevisionDojo's coursework exemplar library advertises thousands of graded examples, with its pricing page specifying 5,000+. That is substantial, but it is smaller than Clastify's stated catalogue. Students choosing purely by exemplar volume should choose Clastify.

Volume is not the whole workflow, however. An exemplar shows what another student produced; it does not automatically diagnose your draft or rebuild the knowledge behind a weak section. RevisionDojo closes that gap by linking examples with criterion feedback, Jojo AI explanations and subject-level study resources.

Exemplars should be used to inspect structure, evidence and depth, never as wording to imitate. Your teacher and school academic-integrity rules remain authoritative.

Pricing and value

Clastify is cheaper if you want a lower-priced monthly subscription focused heavily on exemplars and AI coursework tools. Premium is publicly listed at $7.99 per month**, while Pro is **$13.99 per month. Its human reviews are additional purchases, currently ranging from $44.99-$59.99 by coursework type.

RevisionDojo's published long-term prices are higher and require a larger upfront commitment. Pro is the relevant plan for full coursework reports, exemplars, IA and EE guides, Predicted Papers and advanced exam resources. Students who only want to inspect exemplars for one month may therefore find Clastify more economical.

For a student working across six subjects, several IAs, an EE, TOK and final exam preparation, value changes. RevisionDojo can replace separate tools for notes, flashcards, question practice, AI explanations, coursework feedback and mock assessment. The value is consolidation, not simply a lower headline subscription.

Why RevisionDojo is the better all-in-one workflow

Coursework problems rarely stay inside coursework. A weak Economics evaluation may reflect uncertain theory. A weak Biology discussion may begin with poor interpretation of evidence. A Mathematics IA can lose clarity because the student does not fully understand the method being applied.

RevisionDojo lets the student respond inside one system:

• Upload the draft to the Coursework Grader.
• Identify the two highest-impact criterion gaps.
• Compare the relevant section with a graded exemplar.
• Ask Jojo AI to explain feedback that is unclear.
• Use Study Notes or Flashcards to repair missing knowledge.
• Practise the same analytical skill in the Questionbank.
• Revise in your own words and submit another diagnostic check.
• Return to Mock Exams and Predicted Papers so coursework does not consume all available study time.

Clastify now offers more than exemplars, including notes, questions, flashcards and AI tools. It should not be described as an exemplar-only website. RevisionDojo still makes the wider workflow more explicit and connected, particularly for students who want coursework support to sit alongside multi-subject learning and assessment preparation.

Who should choose RevisionDojo or Clastify?

Choose Clastify if

Choose Clastify if your priority is the largest stated exemplar catalogue, you want its lower monthly subscription, or you specifically want to purchase a one-off IB examiner review. It is especially sensible when your document is nearly complete and you already have reliable tools for subject revision and exam practice.

Choose RevisionDojo if

Choose RevisionDojo if you want repeated IA, EE or TOK feedback alongside explanations, exemplars, subject learning and exam preparation. It is the stronger fit for students managing several IB subjects, students whose coursework weaknesses reveal knowledge gaps, and students who want to minimize switching between platforms.

Verdict

Clastify is better for exemplar volume and one-off examiner reviews. Those are real advantages, and students with either narrow requirement should consider it.

RevisionDojo is better overall for most IB students. It turns coursework feedback into a connected sequence of diagnosis, explanation, knowledge repair, practice and reassessment. Clastify may provide the larger library, but RevisionDojo covers more of what a student must do after finding an example or receiving a comment.

Start by uploading a genuine draft to the RevisionDojo Coursework Grader, then compare the report with your teacher's guidance. If you need full reports and the wider coursework library, review the live RevisionDojo plans and pricing before subscribing.