Subject Studio
Every subject has its own studio
An AI helper that answers only your subject, study kits we are writing topic by topic, and the best free resources on the web, checked and linked. For our Cambridge O Level, IGCSE and A Level subjects, the Digital SAT and counselling.
What's in a studio
Ask, study, check, practise
38 helpers so far, 888 topic study kits written and checked, and 312 free and official resources linked.
Ask
Each subject's AI helper answers questions on its own subject only, and every answer is labelled as AI. What it can't answer goes to a teacher.
Study kit
Topic by topic: a summary, flashcards, a glossary, worked examples or answer plans, and a short quiz. Written with AI in our own words and checked fact by fact by a second AI. The first subjects' kits are ready and the rest are being written: each subject below shows how far it has got.
Free resources
The official syllabus page, open textbooks, simulations, tools and data, each with its licence and the day we checked it.
Practice
Past-paper drills in the Exam Lab, the Practical Lab, the CS Workshop, the SAT Lab and the admission tests' mocks.
Meet the helpers
A helper for every subject
Most helpers are drawn as a famous figure of their subject; Islamiyat's is a star. The drawings are illustrations: the AI tutor is never the person.
O Level, IGCSE & GCSE
O Level Physics5054
Einstein
An illustration of Einstein, the physicist of relativity and of light as quanta (1879–1955). The AI tutor is not Einstein.
- “A car accelerates uniformly from rest to 24 m/s in 8.0 s. Find its acceleration and the distance it travels.”
- “Explain, using the particle model, why the pressure of a gas in a sealed container rises when it is heated.”
17 topics · 204 flashcards · 170 quiz questions · 38 resources linked
O Level Chemistry5070
Marie Curie
An illustration of Marie Curie, the physicist and chemist who discovered polonium and radium, the first person to win two Nobel Prizes (1867–1934). The AI tutor is not Marie Curie.
- “Explain why ionic compounds conduct electricity when molten but not when solid.”
- “Calculate the mass of carbon dioxide produced when 25 g of calcium carbonate is heated.”
32 topics · 384 flashcards · 320 quiz questions · 20 resources linked
O Level Biology5090
Charles Darwin
An illustration of Charles Darwin, the naturalist who explained evolution by natural selection (1809–1882). The AI tutor is not Charles Darwin.
- “Explain how the structure of a red blood cell is adapted to its function.”
- “Describe the roles of amylase and protease in digestion.”
34 topics · 408 flashcards · 340 quiz questions · 10 resources linked
O Level Mathematics4024
Al-Khwarizmi
An illustration of Al-Khwarizmi, the Baghdad mathematician whose book gave algebra its name, and whose own name gave us the word algorithm (about 780–850). The AI tutor is not Al-Khwarizmi.
- “Solve the simultaneous equations 3x + 2y = 12 and x − y = −1.”
- “Find the area of a sector of a circle with radius 7 cm and angle 72°.”
33 topics · 396 flashcards · 330 quiz questions · 14 resources linked
O Level Additional Mathematics4037
Al-Khwarizmi
An illustration of Al-Khwarizmi, the Baghdad mathematician whose book gave algebra its name, and whose own name gave us the word algorithm (about 780–850). The AI tutor is not Al-Khwarizmi.
- “Find the values of k for which kx² + 4x + k = 0 has no real roots.”
- “Differentiate (2x + 1)⁵ and find the gradient of the curve where x = 0.”
16 topics · 192 flashcards · 160 quiz questions · 14 resources linked
O Level Islamiyat2058
Hikmah
Hikmah is an emblem: an eight-pointed star whose name means wisdom, as Islamiyat's guide has no human portrait, out of respect. The AI tutor is not a person.
- “Describe how the Qur'an was compiled during the caliphates of Abu Bakr and Uthman.”
- “Write about the Battle of Badr, and explain one lesson Muslims can learn from it today.”
29 topics · 348 flashcards · 290 quiz questions · 7 resources linked
O Level Pakistan Studies2059
Muhammad Ali Jinnah
An illustration of Muhammad Ali Jinnah, Quaid-e-Azam, the founder of Pakistan (1876–1948). The AI tutor is not Muhammad Ali Jinnah.
- “Explain why the War of Independence of 1857 failed.”
- “Was the Lahore Resolution the most important step towards the creation of Pakistan? Explain your answer.”
24 topics · 288 flashcards · 240 quiz questions · 8 resources linked
O Level Business Studies7115
Madam C. J. Walker
An illustration of Madam C. J. Walker, the American entrepreneur who built her own hair-care business and became one of the first self-made women millionaires in the United States (1867–1919). The AI tutor is not Madam C. J. Walker.
- “Explain two advantages to a business of becoming a private limited company.”
- “Explain how a business could use the marketing mix to launch a new product.”
30 topics · 354 flashcards · 300 quiz questions · 11 resources linked
O Level Economics2281
Adam Smith
An illustration of Adam Smith, the Scottish economist who wrote The Wealth of Nations (1723–1790). The AI tutor is not Adam Smith.
- “Explain what is meant by opportunity cost, with an example.”
- “Analyse how a rise in income tax might affect consumer spending.”
37 topics · 417 flashcards · 370 quiz questions · 11 resources linked
O Level Accounting7707
Luca Pacioli
An illustration of Luca Pacioli, the Italian mathematician and friar who first published double-entry bookkeeping (about 1447–1517). The AI tutor is not Luca Pacioli.
- “Explain the difference between capital expenditure and revenue expenditure, with an example of each.”
- “A machine cost $20 000. Find its depreciation for year 2 at 25% a year by the reducing balance method.”
27 topics · 324 flashcards · 270 quiz questions · 7 resources linked
O Level Commerce7100
Madam C. J. Walker
An illustration of Madam C. J. Walker, the American entrepreneur who built her own hair-care business and became one of the first self-made women millionaires in the United States (1867–1919). The AI tutor is not Madam C. J. Walker.
- “Explain the difference between wholesale and retail trade.”
- “Explain the advantages of e-commerce to a retailer and to its customers.”
30 topics · 350 flashcards · 300 quiz questions · 7 resources linked
IGCSE ICT0417
Ada Lovelace
An illustration of Ada Lovelace, the mathematician who published the first algorithm written for a computing machine, Babbage's Analytical Engine (1815–1852). The AI tutor is not Ada Lovelace.
- “Explain the difference between RAM and ROM.”
- “Describe two methods of preventing unauthorised access to a computer network.”
32 topics · 349 flashcards · 320 quiz questions · 8 resources linked
IGCSE French0520
Victor Hugo
An illustration of Victor Hugo, the French poet, playwright and novelist of Les Misérables and Notre-Dame de Paris (1802–1885). The AI tutor is not Victor Hugo.
- “When do I use the passé composé and when the imparfait?”
- “How do I plan a 130–140 word article in French?”
Study kit being written · 8 resources linked
GCSE French8652
Victor Hugo
An illustration of Victor Hugo, the French poet, playwright and novelist of Les Misérables and Notre-Dame de Paris (1802–1885). The AI tutor is not Victor Hugo.
- “How do I translate « Je vais au collège en bus depuis deux ans » into English?”
- “Which tenses should I use in a 150-word Higher writing task?”
Study kit being written · 8 resources linked
O Level Computer Science2210
Ada Lovelace
An illustration of Ada Lovelace, the mathematician who published the first algorithm written for a computing machine, Babbage's Analytical Engine (1815–1852). The AI tutor is not Ada Lovelace.
- “Write pseudocode to input 10 numbers and output the largest.”
- “Convert the denary number 156 into binary and into hexadecimal.”
33 topics · 375 flashcards · 330 quiz questions · 10 resources linked
O Level English Language1123
Jane Austen
An illustration of Jane Austen, the English novelist of Pride and Prejudice and Emma (1775–1817). The AI tutor is not Jane Austen.
- “How do I plan a narrative composition?”
- “How do I write a summary in my own words without copying the passage?”
12 topics · 144 flashcards · 120 quiz questions · 7 resources linked
O Level Urdu A3247
Allama Iqbal
An illustration of Allama Iqbal, the poet and philosopher, Pakistan's national poet (1877–1938). The AI tutor is not Allama Iqbal.
- “غلام عباس کے افسانے اوورکوٹ کا مرکزی خیال بیان کیجیے۔”
- “تشبیہ اور استعارے میں کیا فرق ہے؟ مثالوں سے واضح کیجیے۔”
7 topics · 84 flashcards · 70 quiz questions · 5 resources linked
O Level Urdu B3248
Allama Iqbal
An illustration of Allama Iqbal, the poet and philosopher, Pakistan's national poet (1877–1938). The AI tutor is not Allama Iqbal.
- “مذکر اور مؤنث کی پہچان کیسے کی جاتی ہے؟ مثالیں دیجیے۔”
- “How do I translate "The school will be closed on Monday" into Urdu?”
9 topics · 108 flashcards · 90 quiz questions · 5 resources linked
O Level Sociology2251
Ibn Khaldun
An illustration of Ibn Khaldun, the historian from Tunis whose Muqaddimah studied how societies rise and fall (1332–1406). The AI tutor is not Ibn Khaldun.
- “Describe two strengths of using questionnaires in sociological research.”
- “Explain how gender roles are learned through socialisation.”
18 topics · 216 flashcards · 180 quiz questions · 6 resources linked
A Level

Physics9702
Einstein
An illustration of Einstein, the physicist of relativity and of light as quanta (1879–1955). The AI tutor is not Einstein.
- “Why does a satellite in a higher orbit move more slowly?”
- “A car brakes from 30 m/s to rest in 60 m. Find the deceleration.”
24 topics · 287 flashcards · 240 quiz questions · 38 resources linked
Chemistry9701
Marie Curie
An illustration of Marie Curie, the physicist and chemist who discovered polonium and radium, the first person to win two Nobel Prizes (1867–1934). The AI tutor is not Marie Curie.
- “Why does the first ionisation energy fall from magnesium to aluminium?”
- “Calculate the pH of 0.050 mol dm⁻³ ethanoic acid (Ka = 1.74 × 10⁻⁵ mol dm⁻³).”
38 topics · 456 flashcards · 380 quiz questions · 20 resources linked
Biology9700
Charles Darwin
An illustration of Charles Darwin, the naturalist who explained evolution by natural selection (1809–1882). The AI tutor is not Charles Darwin.
- “Explain how the structure of phospholipids lets them form a cell membrane.”
- “Why does a temperature above the optimum reduce the rate of an enzyme-catalysed reaction?”
20 topics · 240 flashcards · 200 quiz questions · 9 resources linked
Mathematics9709
Al-Khwarizmi
An illustration of Al-Khwarizmi, the Baghdad mathematician whose book gave algebra its name, and whose own name gave us the word algorithm (about 780–850). The AI tutor is not Al-Khwarizmi.
- “Find the stationary points of y = x³ − 6x² + 9x + 2 and determine their nature.”
- “Solve 2 sin²x + 3 cos x = 0 for 0° ≤ x ≤ 360°.”
37 topics · 442 flashcards · 370 quiz questions · 17 resources linked
Computer Science9618
Ada Lovelace
An illustration of Ada Lovelace, the mathematician who published the first algorithm written for a computing machine, Babbage's Analytical Engine (1815–1852). The AI tutor is not Ada Lovelace.
- “Write pseudocode for a binary search on a sorted array of 100 integers.”
- “Convert −45 into 8-bit two's complement and explain each step.”
20 topics · 240 flashcards · 200 quiz questions · 9 resources linked
Economics9708
Adam Smith
An illustration of Adam Smith, the Scottish economist who wrote The Wealth of Nations (1723–1790). The AI tutor is not Adam Smith.
- “Explain how a fall in the price of a substitute affects the demand for a good.”
- “Explain, with a diagram, how an indirect tax affects price, output and who bears the tax.”
53 topics · 636 flashcards · 530 quiz questions · 12 resources linked
Business9609
Madam C. J. Walker
An illustration of Madam C. J. Walker, the American entrepreneur who built her own hair-care business and became one of the first self-made women millionaires in the United States (1867–1919). The AI tutor is not Madam C. J. Walker.
- “Explain two advantages to a business of targeting a niche market.”
- “Fixed costs are $40 000, the price is $25 and the variable cost is $15 per unit. Find the break-even output.”
34 topics · 408 flashcards · 340 quiz questions · 12 resources linked
Accounting9706
Luca Pacioli
An illustration of Luca Pacioli, the Italian mathematician and friar who first published double-entry bookkeeping (about 1447–1517). The AI tutor is not Luca Pacioli.
- “Prepare the journal entry to correct a purchase of equipment that was recorded in the purchases account.”
- “Inventory is $12 000, receivables $8 000, cash $2 000 and current liabilities $10 000. Find the current ratio and the acid test ratio.”
18 topics · 216 flashcards · 180 quiz questions · 9 resources linked
Psychology9990
Mary Ainsworth
An illustration of Mary Ainsworth, the psychologist who studied how infants form attachments to the people who care for them (1913–1999). The AI tutor is not Mary Ainsworth.
- “Explain the difference between a laboratory experiment and a field experiment, with an example of each.”
- “Describe one ethical guideline and explain how a psychologist could follow it in an observation.”
34 topics · 408 flashcards · 340 quiz questions · 7 resources linked
Sociology9699
Ibn Khaldun
An illustration of Ibn Khaldun, the historian from Tunis whose Muqaddimah studied how societies rise and fall (1332–1406). The AI tutor is not Ibn Khaldun.
- “Explain the difference between primary and secondary socialisation.”
- “Assess the strengths and weaknesses of unstructured interviews in sociological research.”
35 topics · 394 flashcards · 350 quiz questions · 6 resources linked
English Literature9695
Jane Austen
An illustration of Jane Austen, the English novelist of Pride and Prejudice and Emma (1775–1817). The AI tutor is not Jane Austen.
- “Discuss some of the ways in which Austen presents marriage in Pride and Prejudice.”
- “How should I plan a (b) answer on a passage from Hamlet?”
47 topics · 563 flashcards · 470 quiz questions · 6 resources linked
Urdu9686
Allama Iqbal
An illustration of Allama Iqbal, the poet and philosopher, Pakistan's national poet (1877–1938). The AI tutor is not Allama Iqbal.
- “مرزا غالب کی غزل گوئی کی نمایاں خصوصیات بیان کیجیے۔”
- “مراۃ العروس میں اصغری کے کردار کا جائزہ لیجیے۔”
12 topics · 142 flashcards · 120 quiz questions · 5 resources linked
English Language9093
Samuel Johnson
An illustration of Samuel Johnson, the writer whose Dictionary of the English Language recorded how English words were used (1709–1784). The AI tutor is not Samuel Johnson.
- “How do I analyse a writer's use of language and structure in a Paper 1 text?”
- “What should a reflective commentary on my own writing cover?”
10 topics · 111 flashcards · 100 quiz questions · 5 resources linked
History9489
Herodotus
An illustration of Herodotus, the Greek writer whose Histories inquired into why the Greeks and the Persians went to war (c. 484–c. 425 BC). The AI tutor is not Herodotus.
- “How far was the Treaty of Versailles responsible for the tensions of the 1920s?”
- “How do I compare two sources on the League of Nations for Paper 1?”
9 topics · 99 flashcards · 90 quiz questions · 7 resources linked
Law9084
Cornelia Sorabji
An illustration of Cornelia Sorabji, the first woman to study law at Oxford and the first woman to practise law in India (1866–1954). The AI tutor is not Cornelia Sorabji.
- “Explain the difference between an offer and an invitation to treat, with a case for each.”
- “How do I apply the duty of care to a negligence problem question?”
32 topics · 384 flashcards · 320 quiz questions · 7 resources linked
Information Technology9626
Grace Hopper
An illustration of Grace Hopper, the computer scientist and US Navy rear admiral whose work led to COBOL, a programming language of English words (1906–1992). The AI tutor is not Grace Hopper.
- “Describe the advantages and disadvantages of cloud computing for a small business.”
- “Explain how a phishing attack works and how a user can guard against it.”
21 topics · 252 flashcards · 210 quiz questions · 6 resources linked
Further Mathematics9231
Srinivasa Ramanujan
An illustration of Srinivasa Ramanujan, the self-taught Indian mathematician whose infinite series, partitions and identities still astonish mathematicians (1887–1920). The AI tutor is not Srinivasa Ramanujan.
- “Prove by induction that the sum of r³ from r = 1 to n is n²(n + 1)²/4.”
- “Find the eigenvalues and eigenvectors of a 3 × 3 matrix and use them to diagonalise it.”
24 topics · 288 flashcards · 240 quiz questions · 13 resources linked
Digital SAT
Digital SAT
Al-Biruni
An illustration of Al-Biruni, the scholar of mathematics, astronomy and languages who measured the Earth from Nandana, near Pind Dadan Khan in today's Punjab (973–1048). The AI tutor is not Al-Biruni.
- “How should I pace the Reading and Writing module?”
- “Which Math skills should I practise first for a 1400?”
Guides and official resources · 9 resources linked
Counselling
Counselling
Sir Syed Ahmad Khan
An illustration of Sir Syed Ahmad Khan, the educator who founded the college at Aligarh and sent a generation to university (1817–1898). The guide is not Sir Syed Ahmad Khan.
- “How does IBCC equivalence work for my A Levels?”
- “Which countries fit my budget and my grades?”
Guides and official resources · 19 resources linked
Tests
The admission and international tests have no helper: their mocks and practice are timed, as on the day. Each has its official material and our guide.
New in the studio
The coach, the guide and the panel
Three new characters guide the Digital SAT, counselling and the mock interviews.
Al-Biruni
The AI tutor
An illustration of Al-Biruni, the scholar of mathematics, astronomy and languages who measured the Earth from Nandana, near Pind Dadan Khan in today's Punjab (973–1048). The AI tutor is not Al-Biruni.
Sir Syed Ahmad Khan
The guide
An illustration of Sir Syed Ahmad Khan, the educator who founded the college at Aligarh and sent a generation to university (1817–1898). The guide is not Sir Syed Ahmad Khan.
The panel
The AI interviewer
The panel is an emblem: a desk with a microphone and a nameplate, standing for the people who will interview you. The AI interviewer is not a person.
Safe by design
Helpers that stay in their lane
- It answers only its own subject, and says so plainly when a question is outside it.
- It won't write another subject's work, or a test's.
- It never pretends to be a real person: each portrait is an illustration.
- Personal, medical and legal questions go to a trusted adult, and a student who may be at risk sees helplines straight away.
- It pauses while a student is sitting a test.
- Every AI answer is labelled as AI, and teachers see the questions and answer what it can't.
Free to try
Start without an account
Physics Studio
Ask the Physics tutor a question now, no account needed.
Official test resources
The official material for the SAT, IELTS, TOEFL, PTE, ACT and the admission tests.
Test dates
Every test date and deadline that matters, counting down.
Pick the plan that opens your subjects
Copyright, plainly
We link to official and open resources and never re-host them. The study kits are our own: written with AI from the syllabus topic alone, never from a textbook or a past paper, and checked fact by fact by a second AI before they are published.