Marksyvs
Kognity
What Marksy does that Kognity does, what it adds, and where Kognity is still the better pick.
Based on what each tool says publicly, checked on (Kognity IB DP product page, Marksy pricing page). Prices and features change, so check before you pay.
Which should you choose?
Kognity is a textbook your school buys. Marksy has free Physics and Biology textbooks anyone can read, with simulations and marked practice questions, and it grades the coursework Kognity doesn't touch.
Choose
Kognityif
- your school already pays for it and your teacher sets work through it
- you need a textbook for a subject other than Physics or Biology
Choose
Marksyif
- you want free textbooks you can read without a school login
- you want your own IA, EE and TOK drafts graded today
- you want practice questions with your answers marked
Feature by feature
| Feature |  Kognity | |
|---|---|---|
| Grading your coursework | ||
| Grades IA, EE and TOK drafts | Yes IAs, Extended Essays, TOK essays and exhibitions. | No Doesn't grade coursework. |
| Mark for each criterion | Yes A mark for each criterion, comments on your own sentences and a list of what to fix first. | No Doesn't grade coursework. |
| Accuracy tested and published | Yes 92% of marks within one grade, tested on 1,317 IB-marked IAs and TOK essays. | No Doesn't grade coursework. |
| AI check | Yes Included on paid plans. | No Not advertised. |
| Source checking | Yes Checks who made each source, when it was published, and whether you have enough variety for your assignment. | No Not advertised. |
| Grade several drafts at once | Yes Up to 15 drafts at once on Student Plus. | Partly Teachers set auto-marked assignments to a class. Coursework isn't graded. |
| Review by a human examiner | No AI marking, tested against examiners' marks. | No Not advertised. |
| Studying for exams | ||
| Practice questions by topic | Yes Maths, Physics, Chemistry and Biology, with your written answers marked against the markscheme. | Yes 10,000+ questions with automatic marking, set by teachers. |
| Oral practice with feedback | Yes Timed, with follow-up questions and a mark. Included on paid plans. | No Not advertised. |
| Textbooks or notes | Yes Free Physics and Biology textbooks, no account needed. | Yes Interactive textbooks for most DP subjects. Its main product. |
| Interactive simulations | Yes About 150 inside the Physics and Biology chapters. Free. | Partly The textbooks have interactive parts. It doesn't say how many. |
| Price | ||
| Free plan | Yes 5 free gradings a month, no card needed. | No Bought by schools. No plan for students on their own. |
| Paid plans | Yes From $8.99 a month (billed yearly) for 50 gradings, 20 AI checks and 5 orals. Student Plus: 200, 50 and 20. | Unclear Schools get a quote. |
Want to check your own draft?
5 free gradings a month. No card.