Join the waitlist.First 2 weeks free.
Lessons, mark-scheme practice, flashcards, and an AI coach — built natively for IB and Cambridge A Level. Arriving September 2026.
Save your seat before launch and your first 2 weeks are on us.
One email at launch · No spam · No card required
The difference
Marked the way the examiner will mark you.
Anyone can hand you practice questions. Your grade is decided by the mark scheme — and practising without it is how people feel ready and then aren’t. Nexelia checks your answer the way the person with the red pen will: which method mark you earned, where the accuracy mark died, which command word you answered instead of the one that was asked.
What the red pen actually checks
- M1Method marksCredit for the right approach — earned or lost before you ever reach a final answer.
- A1Accuracy marksThe exact value, the exact unit, the right significant figures. This is where marks quietly die.
- CWCommand words“State”, “explain” and “evaluate” are three different questions. You get held to the one that was asked.
- L3Level-of-response bandsEssay subjects are banded, not point-counted. Feedback names your band — and what moves you up one.
Your answers get marked against all four — the same way your paper will be.
Your syllabus
Built for your board, not “science in general.”
Every lesson and question is mapped to the Cambridge syllabus — its command words, its paper style, its mark schemes. Not generic content with a Cambridge sticker on it. Doing IB? That’s what September’s launch is for — same idea, your programme.
- Tagged to the exact syllabus point
- Real paper style
- Mark-scheme aligned
Your coach
Nexo decides what you open today.
The hardest part of revision isn’t doing it — it’s the half hour you lose deciding where to start. Nexo looks at what you’re weak at, what you’ve been avoiding, and how close your exam is, then hands you today’s plan. You press start. That’s the whole job.
All of it, one place
Stop juggling tabs.
One login, everything connected — what you get wrong in a mock shows up in your flashcards, your mistakes shape tomorrow’s plan.
- LessonsInteractive, slide-by-slide — built to be worked through, not watched.
- Flashcards that time themselvesSpaced repetition brings each card back right before you would have forgotten it.
- Past papers & mock examsTimed, paper-style practice — marked the same way everything else here is.
- A mistake journalEvery wrong answer is remembered, so revision starts where it actually hurts.
Why this exists
It started with one student.
Nexelia began with a founder tutoring his sister through A-Level Physics. The practice apps kept telling her she was fine; her past papers kept disagreeing. What was missing was anything that marked her answers the way the exam would — so he built it. That’s the whole story: no ed-tech giant behind this, just the tool we couldn’t find.
Your first 2 weeks are free.
Join before launch and the offer locks to your email. Exams won’t wait — this takes half a minute.
One email at launch · No spam · No card required
From a school? Request a pilot