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 | |
|---|---|---|
Price ?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. Subscription pricing keeps repeated retries cheaper than per-review models. | ~Partial?Base exemplar access can start around $12.99/month in some funnels, but grading is priced per submission: TOK $44.99, IA $49.99, EE $59.99, plus Express ($9.99) or Turbo ($19.99) add-ons. |
Price value for regular IB grading ?Lower cost per repeated grading cycle matters more than one-off pricing. | Strong?Free monthly grading entry plus clear recurring tiers is strong value for frequent IB draft loops. | ×No?Per-submission review pricing can become expensive for frequent weekly draft cycles. |
Publicly 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. |
IB rubric-first grading workflow ?Purpose-built for criterion-level grading, not generic advice. | Strong?Criterion-first scoring and rubric-oriented grading UX. | ~Partial?Review service provides predicted scores and improvement guidance. |
IA / EE / TOK submission 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. |
Batch submission workflow ?Multiple drafts in one flow saves turnaround time. | Strong?Batch workflows support up to 15 submissions at once. | ×No?Public workflow is submission-by-submission review. |
Built-in oral / IO practice ?Keeps speaking prep and grading in one stack. | Strong?5-20 paid-tier oral/IO runs monthly. | ×No?Not marketed as an oral/IO practice system. |
Past-paper grading/practice mode ?Supports exam-style practice inside the same product. | Strong?100-400 paid-tier questions monthly. | ×No?Past-paper workflow is not a public core feature. |
Built-in AI-detection checks ?Integrity checks are native, not a separate purchase. | Strong?20-50 paid-tier AI checks monthly. | ?Unclear?No clearly advertised built-in AI-detection workflow. |
Export-ready feedback output ?Easy to keep records and track progression. | Strong?Feedback outputs can be reused and shared for iteration. | ~Partial?Delivers detailed review output for each paid submission. |
Large questionbank / revision content ?Useful, but grading conversion usually matters more for drafts. | ~Partial?Includes past-paper practice, but not a broad standalone revision library. | ~Partial?Leans on exemplars more than broad revision questionbanks. |
Human review / exemplar-heavy model ?Helpful for examples, but can slow repeated draft loops. | ×No?Focuses on AI-assisted grading workflow over human examiner reviews. | Strong?Core value prop: real examiner review plus exemplars. |
Teacher analytics and class-level insights ?Important for departments and school rollouts. | ~Partial?Supports workflow consistency, but not marketed as a broad textbook analytics stack. | ×No?Not publicly framed as teacher analytics software. |
Free entry path ?Students can start fast without procurement delays. | Strong?5 complete gradings monthly on free access. | Strong?Public join-for-free path is available. |
Low-friction self-serve onboarding ?Individuals can get value quickly without school setup. | Strong?Students can sign up directly and start without school procurement. | Strong?Students can self-serve and buy individual review services. |
IB-specific positioning ?Sharper product fit typically means less prompt engineering. | Strong?Positioned as an IB-specific grading workflow product. | Strong?Strong IB exam/examiner framing in public messaging. |
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 9 feature rows versus 1 for Clastify. Marksy's strongest edges here are Price value for regular IB grading, Batch submission workflow, and Built-in oral / IO practice, 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 partial 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 / exemplar-heavy model. 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 partial 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 regular-use price value and strong for pricing transparency. Pricing: Base exemplar access can start around $12.99/month in some funnels, but grading is priced per submission: TOK $44.99, IA $49.99, EE $59.99, plus Express ($9.99) or Turbo ($19.99) add-ons. Marksy snapshot: $0 entry with 5 full gradings/month, then paid student plans from $14.99/month. Subscription pricing keeps repeated retries cheaper than per-review models. 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.