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A fluent answer is not the same as knowing which markscheme points you earned.
Examiner's mark: no credit.Skip to content
Everything the DP asks of you,
Four steps.
Start free Four things it does.
A DP topic plays as a path of swipeable card lessons in the Koncepts web app. An exam-style DP question is answered and its markscheme is revealed in the Koncepts web app. Kori guides a student through a question in Help mode in the Koncepts web app. Used by IB teachersAlready in
Start free. Go Pro when
$79.00Two years.
DP · HL / SLLearn it properly.
Learn it properly.
Then practise like
it's the real paper.
Card lessons you can finish. Real past papers with the markschemes. A tutor that makes you write the answer.
Used by 600+ IB teachers Across 78 countries
I'm a parent Q1. OutlineOutline the role of ATP in active transport.Reveal markschemeBack to question
Markscheme focus
- ATP hydrolysis releases energy.
- Energy moves substances against their concentration gradient.
Q2. ExplainExplain how the sodium-potassium pump maintains resting potential.Reveal markschemeBack to question
Markscheme focus
- ATP supplies energy to the pump.
- Three sodium ions are pumped out.
- Two potassium ions are pumped in.
- The net movement of positive charge helps maintain the potential difference.
Q3. EvaluateEvaluate the evidence for the chemiosmotic theory.Reveal markschemeBack to question
Markscheme focus
- Use experimental evidence for the proton gradient and ATP synthesis.
- Consider limitations of the evidence and reach a supported judgement.
Q4. DiscussDiscuss the limitations of the fluid mosaic model.Reveal markschemeBack to question
Markscheme focus
- Develop the limitations with evidence, rather than listing them.
- Consider membrane organisation, restricted movement and interactions with the cytoskeleton.
Exam-style examples. Markscheme focus is abridged.
Your subjects, HL and SL.
Open any subject and the whole syllabus path is visible before you pay.
HL / SL
Biology
A - Unity and Diversity, B - Form and Function
HL / SL
Chemistry
Structure 1. Models of the particulate nature of matter, Structure 2. Models of bonding and structure
HL / SL
Computer Science
A1 Computer fundamentals, A2 Networks
HL / SL
Economics
1. Introduction to Economics, 2. Microeconomics
HL / SL
English A Lang & Lit
Everything You Need to Know About Analysis, Paper 1 Lang & Lit
HL / SL
English A Lit
Everything You Need to Know About Analysis, Paper 1 Lit
HL / SL
Geography
1 Changing Population, 2 Global Climate - Vulnerability and Resilience
HL / SL
History
Paper 1 - The Move to Global War, Paper 1 - Rights and Protest
HL / SL
Math AA
Number and Algebra, Functions
HL / SL
Math AI
Number and Algebra, Functions
HL / SL
Physics
Topic A - Space, time and motion, Topic B - The particulate nature of matter
Don't see yours?
Tell us which subject you'd like to see.
The problem: what you revise with today
Question banks
Tell you what you got wrong. Never teach you why.
Examiner's mark: no credit.Tutors
Know the syllabus. But the next question doesn't always wait until your next session.
Examiner's mark: no credit.02 / The solution
Everything the DP asks of you,
in one place that speaks markscheme.
Built on the markschemes, command terms and the HL/SL split your examiner works from.
It won't do it for you
Guided help, or examiner marking. Never the answer.
It teaches, not just tests
Question banks tell you what you got wrong. We teach it first.
It's awake when you are
Eleven at night, a week before the mock. Help when you need it.
03 / How it works
Four steps.
Then two years of it.
Start free Pick your subjects.
HL and SL kept distinct. You only see your syllabus.
Learn it in cards.
Minutes, not chapters.
Practise on real papers.
The markscheme beside every question.
Ask when you're stuck.
Guided, or marked like an examiner.
04 / What you get
Four things it does.
All of them marked in DP.
Learn
Lessons that fit between classes.
Every DP topic broken into a path of swipeable cards you finish in minutes, not a 40-page PDF you never open.
Inside a card lesson
Practise
80,000+ questions with real exam DNA.
Exam-style questions written for the current syllabus with mark allocations and markscheme reveals, plus the real past papers.
From question to markscheme
Your AI tutor
Stuck at eleven? Choose your rescue.
Help mode guides you and never dumps the solution. Analyse mode marks finished work like an examiner and stops at your first mistake.
A little help. Your own answer.
Coursework
Your draft, against the actual criteria.
Read against the IB's own criteria, annotated, private, every version kept.
Already in
IB classrooms.
600+600+IB teachers
use Koncepts
use Koncepts
7878countries where IB teachers use Koncepts
How we compare
See how Koncepts stacks up.
Lessons, practice and help. See what comes with each platform.
| What you get |  Koncepts |  RevisionDojo |  Revision Village |
|---|---|---|---|
| Card lessons in a guided path | Included: Bite-size lessons, in syllabus order | Partly: Bite-size interactive lessons | Partly: Videos and Key Concepts |
| Audio-narrated lessons | Included: Every card | Not listed on their site: Not listed | Not listed on their site: Not listed |
| Interactives, simulators and 3D | Included: 30,000+, simulators and 3D | Partly: Interactive lessons | Not listed on their site: Not listed |
| Exam questions with markschemes | Included: 80,000+ | Partly: Question Bank | Partly: Questionbank |
| Real past papers | Included: With markschemes | Included: Past papers | Included: Past papers |
| Guided help that won't give the answer | Included: Help mode | Included: Jojo AI Tutor, checkpoints | Included: Newton AI, hints |
| Conversational voice tutor | Included: Voice with Kori | Not listed on their site: Not listed | Not listed on their site: Not listed |
| Free plan | Included: Full first subtopics + AI | Included: Limited notes and lessons | Included: Subset of topics |
| Price | $55.00/month | $399 one‑timeExam Pass sale price, to May 2027 | $249‑499 one‑timeSingle course or full suite |
Included Partly Not listed on their site
Reviewed 26 September 2026 against their public pages. RevisionDojo: Pricing, Jojo AI Tutor, Lessons, Exercises, Coursework Studio. Revision Village: Gold plans, Newton AI. Prices cover different periods.
Plans
Start free. Go Pro when
you hit the wall.
The free plan is real lessons you keep forever.
Free
$0.00 forever
Try the real thing, not a demo.
Learn
- Full lessons, actually free. The first two subtopics in each subject, with notes, cheatsheets and quizzes.
- See everything. The whole syllabus path stays visible before you pay.
- Yours to keep. Replay your free lessons whenever you need them.
Practise
- Duels. 3 quiz battles a day.
Your AI tutor
- AI chat. 5 messages a session with Kori and Homework Help. Resets every 2 hours.
Koncepts Pro
The full DP toolkit$55.00/month
Go further in every subject.
Learn
- Bite-sized lessons. The full learning path in every subject.
- The full Library. Every note, cheatsheet and quiz, HL and SL.
Practise
- 80,000+ DP questions. Mark allocations and markscheme reveals.
- Past papers. The real thing, markschemes included.
- Unlimited duels. 1v1 quiz battles, all day.
Your AI tutor, unlimited
- Homework Help. Help guides you, Analyse marks your working.
- Ask it out loud. Talk it through with Kori.
Coursework
- Your draft, against the criteria. Private, versioned, annotated.
Cancel anytime. Keep Pro until the end of your billing period.
A whole month of study, beyond the tutoring hour.
Questions
The honest answers.
The first two subtopics of every subject: complete lessons, notes, cheatsheets and quizzes, plus 5 AI messages per session and 3 duels a day. Sessions reset every 2 hours. Your free lessons never expire.
A few minutes of swipeable cards, with checks along the way. Pick up from where you left off when you have another gap between classes.
Web, Android and iOS. Sign in to the same Koncepts account on each device.
Pro unlocks the full DP Learning Path, the Library, past papers, unlimited AI chat and unlimited duels. Check the plans page for the current inclusions and billing options.
Yes. Share the plans link and open checkout together while signed in to your student account, then use their card. The subscription belongs to your student account; your parent does not need a second subscription.
A guide for parents →Yes. Manage a web subscription in Billing, or a mobile subscription in the store where you bought it. You keep access until the end of the period you paid for.
Yes. Use the same account on web, Android and iOS. Your Pro access travels with you.
Help mode guides your reasoning step by step. Analyse mode reviews work you have already written and points out the first mistake, so you can work through it yourself.
Koncepts brings your DP syllabus, lessons and markscheme-based practice into one learning path. Help mode keeps you working through the question, and Analyse mode checks your own working.
It gives feedback on your own drafts, like a supervisor would, and keeps every version so the work's evolution is visible. It never writes your essay. Follow your school's AI policy.
Open your subject above to see its available levels and syllabus before you pay.
See subjects →A syllabus path of card lessons, notes, cheatsheets and practice, with markschemes and past papers. HL and SL stay distinct so you can work on your own course.
Two years.
One grade that matters.
Start free. Go Pro when you hit your first wall.
Get the Koncepts app
