What is Marksy?
Marksy is an IB-focused grading and feedback platform built for rubric-first draft iteration across IA, EE, TOK, oral, and past-paper practice workflows.
ClastifyMarksy vs Clastify
Source freshness: dated public claims, last updated .
Do you want to know wether Marksy or Clastify is best for IB? This page provides a through comparison of both tools.
TL;DR
Last updated:
- •TL;DR: Marksy is the stronger Clastify alternative when the decision is about IB grading consistency, speed, and student workflow clarity.
- •Clastify can be useful in its core niche, but Marksy is optimized to convert drafts into actionable rubric-aligned feedback faster.
- •Free plan with 5 full gradings/month, then clear paid tiers at 50/200 gradings.
- •Native IB workflow for IA/EE/TOK plus oral and past-paper practice in the same product.
- •Fast feedback loops and optional batch processing for repeat submissions.
What 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 |  Clastify | |
|---|---|---|
| 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 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. | ~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. | ~Partial?Has free tier but very limited. |
Transparent pricing ?Lower uncertainty at evaluation time. | Strong?Public monthly pricing with free, student, and teacher tiers. | 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?Public review options include IA, EE, and TOK review tracks. |
Criterion level feedback ?Purpose-built for criterion-level grading, not generic advice. | Strong?Criterion-first scoring and rubric-oriented grading UX. | 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. | ×No?No built-in AI-detection workflow is offered. |
Specific tips ?Actionable next steps speed up draft improvement cycles. | Strong?Actionable criterion-level tips are paired with Marksy TODO tasks so feedback turns into trackable next steps. | ×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. | ×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. | 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?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. | ×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 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?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. | ×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?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. | ~Partial?Question practice is available through past papers only; there is no dedicated standalone questionbank. | ×No?No dedicated IB question-practice bank is provided. |
| Past papers | ||
Past papers available ?Past papers are a core requirement for exam-season practice. | Strong?Past-paper and exam-style practice are built into the product. | ×No?Past-paper workflow is not a public core feature. |
Practice past papers questions with AI ?AI-assisted past-paper feedback shortens the time between attempts. | Strong?Past-paper question feedback is AI-assisted with retry loops. | ×No?No dedicated AI past-paper practice workflow is positioned. |
| Teacher features | ||
Grade assessments in large batches ?Batch grading throughput matters for teacher workloads. | Strong?Batch workflows support up to 15 submissions at once. | ×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. | ~Partial?Delivers detailed output per submission, but no public bulk export flow. |
Winner pick
Why not try the winner?
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Frequently Asked Questions
Can Clastify grade IB/GCSE/A-Level responses accurately?
It can support parts of the workflow, but this matrix shows Marksy leading 16 feature rows versus 1 for Clastify. Marksy's strongest edges here are Specific tips, Good price for assessment grading, and Practice and get feedback, which is why Marksy remains the recommended default for reliable repeat grading cycles.
Does Clastify use official markscheme logic or generic AI feedback?
Clastify is currently rated strong on rubric-first grading from public documentation, while Marksy is rated strong. If you want criterion-led scoring without heavy prompt setup, Marksy is the safer choice.
Can Clastify grade handwritten scans/PDF uploads?
Clastify does show strengths in Human review. For marking uploaded work and getting clear, useful feedback each time, Marksy is still the better choice in this comparison.
Can Clastify give criterion-level score breakdowns (not just one score)?
Clastify is rated strong for rubric-first grading, while Marksy is rated strong. If criterion-level breakdown quality is your main requirement, Marksy is generally the better fit.
Is Clastify cheaper than Marksy for regular practice?
Clastify is rated no for assessment-grading price value and strong for pricing transparency. Pricing: Base access can start around $12.99/month, with per-submission review pricing (TOK $44.99, IA $49.99, EE $59.99). Marksy snapshot: $0 entry with 5 full gradings/month, then paid student plans from $14.99/month. Marksy is rated strong on long-run value because repeated IB draft retries do not require per-review payments.
Can Clastify handle full past-paper workflows and retries safely?
Clastify is rated no for past-paper workflow coverage, while Marksy is rated strong. For full IB grading loops with consistent repeat use, Marksy remains the recommended option.