Free lessons for every subject
Free study lessons in 4 groups: Science and Maths, Business and Finance, Tech, and Languages and Humanities. Each card explains one idea in plain English, with an analogy and an example. Study any of them in the app with flashcards and quizzes. Start without an account.
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Science and Maths
Biology, chemistry, physics, maths and statistics, from school to university.
- School
Biology (school)
Cells, the body, genetics, evolution and ecosystems.
8 parts, 87 concept cards and 77 flashcards - University
Biology (university)
Cell biology, molecular genetics, physiology and ecology in depth.
10 parts, 85 concept cards and 90 flashcards - School
Chemistry (school)
Atoms, bonding, reactions, the periodic table and moles.
8 parts, 74 concept cards and 64 flashcards - University
Chemistry (university)
Structure, thermodynamics, kinetics, equilibrium and organic chemistry.
10 parts, 92 concept cards and 100 flashcards - School
Physics (school)
Forces, energy, waves, electricity and magnetism.
8 parts, 64 concept cards and 66 flashcards - University
Physics (university)
Mechanics, fields, thermodynamics and modern physics.
10 parts, 103 concept cards and 90 flashcards - School
Maths (school)
Algebra, geometry, trigonometry, graphs and probability.
8 parts, 67 concept cards and 68 flashcards - University
Maths (university)
Calculus, linear algebra and proof.
10 parts, 92 concept cards and 100 flashcards - University
Statistics (university)
Probability, distributions, tests and regression.
8 parts, 67 concept cards and 67 flashcards
Business and Finance
Accounting, ACCA, economics and marketing, for students and people at work.
Coming soon. Lessons for this group are being written and checked by a person. They open together with the other new subjects.
Tech
Web development, Python, SQL, data and building with AI, from junior to senior.
Languages and Humanities
Arabic, Spanish, English, history, geography and Islamic studies.
Coming soon. Lessons for this group are being written and checked by a person. They open together with the other new subjects.