RevisionDojo iconRevisionDojoClastify iconClastify

RevisionDojo vs Clastify

Source freshness: dated public claims, last updated .

Do you want to know wether RevisionDojo or Clastify is best for IB? This page provides a through comparison of both tools.

TL;DR

Last updated:

  • TL;DR: In RevisionDojo vs Clastify, Marksy is included as a third benchmark and usually wins on grading workflow depth and repeatability.
  • RevisionDojo and Clastify each have strengths, but Marksy is generally the best alternative if your priority is getting IB-ready grading output fast.
  • Free plan with 5 full gradings/month, then clear paid tiers at 50/200 gradings.
  • Native IB workflow for IA/EE/TOK plus oral practice and source checking in the same product.
  • Fast feedback loops and optional batch processing for repeat submissions.

RevisionDojo iconWhat is RevisionDojo?

RevisionDojo is an IB revision platform centered on question practice, exam prep resources, and study workflows for students preparing for IB assessments.

Clastify iconWhat is Clastify?

Clastify is an IB coursework support platform known for exemplar libraries and paid examiner-style review services for IA, EE, and TOK submissions.

Features comparison

Feature
Marksy iconMarksy
RevisionDojo iconRevisionDojo
Clastify iconClastify
General

IB oriented

?IB-first workflows reduce prompt overhead and improve rubric fit.
Strong?Positioned as an IB-specific grading workflow product.
Strong?Strong IB-first positioning across the homepage.
Strong?Strong IB exam/examiner framing in public messaging.

Affordable

?Shows what users actually pay, including per-review and billed-total caveats.
Strong?$0 entry with 5 full gradings/month, then paid student plans from $14.99/month.
×No?Public premium pricing is high at about $198/month for full access, so it is not affordable for most students.
~Partial?Base access can start around $12.99/month, with per-submission review pricing (TOK $44.99, IA $49.99, EE $59.99).

Has free tier

?Students can start immediately without procurement or upfront payment.
Strong?5 complete gradings monthly on free access.
×No?Has free tier but very limited.
~Partial?Has free tier but very limited.

Transparent pricing

?Lower uncertainty at evaluation time.
Strong?Public monthly pricing with free, student, and teacher tiers.
×No?Prices fluctuate a lot, and is in constant discount despite being advertised as time limited.
Strong?Public review pricing is visible for IA/EE/TOK review offerings.
Assessment grading

IA / EE / TOK grading support

?Designed for core IB assessed writing workflows.
Strong?Built for IA, EE, TOK submission workflows.
Strong?IA/EE/TOK grading support is marketed across paid workflows.
Strong?Public review options include IA, EE, and TOK review tracks.

Structured feedback areas

?Purpose-built for area-by-area formative review, not generic advice.
Strong?Area-by-area scoring through an independently written formative review framework.
~Partial?Structured feedback is available but limited to paid tiers.
Strong?Review service provides predicted scores and criterion-linked improvement guidance.

AI detection

?Integrity checks are native, not a separate purchase.
Strong?20-50 paid-tier AI checks monthly.
Strong?AI-detection checks are included in the paid grading stack.
×No?No built-in AI-detection workflow is offered.

Specific tips

?Actionable next steps speed up draft improvement cycles.
Strong?Actionable review-area tips are paired with Marksy TODO tasks so feedback turns into trackable next steps.
×No?No consistently structured specific-tip workflow is advertised.
×No?No always-on specific-tip workflow beyond one-off review comments.

Quick

?Fast turnaround keeps revision momentum high between submissions.
Strong?Fast AI-assisted turnaround supports repeat submission loops.
Strong?Core paid flows are positioned around fast turnaround for iterative student feedback.
×No?Human examiner review can take longer than instant AI-first loops.

Human review

?Human review can help edge cases but usually adds time and cost.
×No?Focuses on AI-assisted grading workflow over human examiner reviews.
×No?No core human-review grading workflow is offered.
Strong?Core value prop: real examiner review plus exemplars.

Good price for assessment grading

?Lower cost per repeated grading cycle matters more than one-off pricing.
Strong?Subscription pricing keeps repeated retries cheaper than per-review models.
×No?Assessment grading pricing is expensive at premium tiers and not good value.
×No?Per-submission review pricing can become expensive for frequent weekly draft cycles.
Textbooks and simulations

Online textbooks

?Useful for concept refreshers before running assessment feedback loops.
Strong?Includes online textbook-style revision content alongside grading workflows.
Strong?Supports online subject notes and revision resources.
×No?No online textbook product is offered.

Hundreds of simulations to learn concepts

?Interactive simulation depth improves understanding before drafting.
Strong?Public simulations hub includes hundreds of IB learning simulations.
×No?No public simulation library positioned as a core feature.
×No?No public simulations library is positioned.

Available for free

?Free learning content removes friction for everyday revision.
Strong?Core simulation and revision resources are publicly accessible.
~Partial?Free content exists, but textbook access is limited.
~Partial?Some resources are accessible with free accounts; detailed reviews are paid.
Oral practice

Practice and get feedback

?Oral practice should include structured scoring feedback.
Strong?Built-in oral practice returns structured feedback per run.
Strong?Oral practice with feedback is supported in paid product workflows.
×No?Not marketed as an oral/IO practice system.

Affordable oral practice

?Predictable oral-practice costs matter when students rehearse frequently.
Strong?Oral practice is included in plan limits, not charged per attempt.
×No?Oral-practice pricing is not affordable given limited structured support.
×No?No affordable oral-practice workflow is offered due to lack of oral support.
Questionbank

Practice IB questions

?Question practice is valuable when linked to criterion-aware feedback.
×No?No first-party questionbank is publicly offered by Marksy.
Strong?Question practice is a core value proposition.
×No?No dedicated IB question-practice bank is provided.
Teacher features

Grade assessments in large batches

?Batch grading throughput matters for teacher workloads.
Strong?Batch workflows support up to 15 submissions at once.
?Unclear?Bulk submission specifics are not clearly documented on public pages.
×No?Public workflow is submission-by-submission review.

Export grading results in bulk

?Exportable outputs simplify moderation and record-keeping.
Strong?Feedback outputs can be reused and shared for iteration.
?Unclear?No clear public bulk export workflow documentation.
~Partial?Delivers detailed output per submission, but no public bulk export flow.

Winner pick

Why not try the winner?

Frequently Asked Questions

What makes Marksy different from RevisionDojo or Clastify?

Marksy stays purpose-built for repeatable grading workflows and is rated strong on assessment-grading price value (vs no for RevisionDojo and no for Clastify). Pricing: Marksy -> $0 entry with 5 full gradings/month, then paid student plans from $14.99/month. RevisionDojo -> Public premium pricing is high at about $198/month for full access, so it is not affordable for most students. Clastify -> Base access can start around $12.99/month, with per-submission review pricing (TOK $44.99, IA $49.99, EE $59.99). Against RevisionDojo, Marksy leads 11 rows with key edges in Specific tips and Good price for assessment grading. Against Clastify, Marksy leads 13 rows with key edges in Specific tips and Good price for assessment grading.

Can Marksy grade full coursework drafts?

Yes. Marksy supports full coursework submissions in its supported workflows and returns independently structured formative feedback. This is one reason it continues to score as a strong feedback-focused alternative.

How does Marksy handle OCR/parsing failures or invalid outputs?

Marksy is designed for production grading loops with parsing validation and retry-safe behavior. That workflow reliability is a key reason Marksy remains the preferred choice over generic or content-only stacks.

Does Marksy support teacher workflows (bulk grading/class use)?

Yes. Marksy is optimized for repeat teacher and class workflows, including bulk-oriented grading paths. Even if this head-to-head has close spots, Marksy remains the stronger alternative for operational grading throughput.

What are Marksy usage limits for Free/Student/Teacher tiers?

Current monthly grading limits are 5 (Free), 50 (Student), and 200 (Teacher), with additional tiered limits for oral and AI-check workflows.

Is student data private and can users delete data?

Marksy uses account-scoped access controls and user data-management paths. From a product-fit perspective, this page's matrix also shows RevisionDojo vs Clastify at 5-6, while Marksy still leads as the practical grading-first alternative.