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Upload your draft. Marksy estimates your mark for each criterion, points at the sentences behind it, and tells you what to fix first.
5 free gradings a month. No card.
bio HL
Lina, Tom, you
Tom
Biology IA draft.pdf
Estimated mark: 17/24
Overall feedback
A focused question with a sound method. Evaluation names the weaknesses but never says how much they matter.
Criteria Breakdown
You list the ±0.5 °C uncertainty but don't say how it changes your trend. Explain its effect on the conclusion.
Sample result, not a real student's work
is it cheating?
No. Marksy reads your draft and comments on it, like a tutor would. It doesn't write a single word for you.
will turnitin flag my work as AI?
No. AI detectors check how your writing reads. Marksy reading your draft doesn't change one word of it.
is my work used to train AI?
No. Your work is never used to train AI models.
who can see my files?
Only you. You can delete them whenever you want.
is the mark exact?
No, it's an estimate. Your teacher and the IB decide your real mark. Marksy shows you why, sentence by sentence.
my teacher already read my draft
Good. Marksy is for every draft after that one.
how much is it?
5 gradings a month are free. No card. Paid plans start at $9.99/month if you need more.
where can I read the full version?
Grading is what most people come for. The other tools use the same account and the same free plan.
An estimated mark for each criterion, comments on your actual sentences, and what to fix first.
A timed oral with follow-up questions you didn't prepare for, then feedback on each criterion.
Find out which sources to keep, review or replace before you write around them.
Free Physics and Biology chapters with simulations you can change while you read.
Three HL/SL combinations that fit your school, with warnings about missing prerequisites.
From Trustpilot, as written.
maya balog
Trustpilot · 13 February 2026
lifesaver
“marksyib has saved my ib diploma. thanks to it, my IA's were perfect and got the points i needed. really recommended.”
Jordi Pasalaigua Peiron
Trustpilot · 25 March 2026
Marksy ib allowed me to be able to…
“Marksy ib allowed me to be able to finish my IAs much before allowing me to be able to relax better. 100% recommended”
mieszko zhao
Trustpilot · 18 March 2026
Very useful and gives incredible depth…
“Very useful and gives incredible depth into your work.”
Fisrr
Trustpilot · 5 March 2026
Great platform for IB marking
“Fast and efficient. Feedback is great and very helpful. Compared to other platforms (RevisionDojo or Clastify), it is also considerably cheaper. 100% recommended!”
Based on what each tool advertises. Check their sites for current details.
| Feature | Marksy | RevisionDojo | Clastify | ChatGPT |
|---|---|---|---|---|
| Free gradings | Yes: 5 full gradings a month | Partly: 1 limited grading | No: None | Partly: You write the prompt |
| Several drafts at once | Yes: Up to 15 | Partly: School plans only | No: One at a time | No: One at a time |
| Comments on your sentences | Yes: Yes | Yes: Yes | Yes: Yes | No: No |
| AI check | Yes: Included | Yes: Included | No: Not advertised | No: No |
| Price | Yes: Free, or from $9.99/month | See their pricing | Pay per grading | See their pricing |
Free gets you 5 gradings a month. Student gets 50, Student Plus gets 200. Paid plans start at $9.99/month.
