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Everything you need to start preparing.
- Every lesson and strategy guide
- 40 practice questions a day
- Diagnostic test plus 1 full mock per exam
- 3 AI essay and speaking gradings a week
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38 full courses · 855 exams catalogued
A lesson for every topic on the syllabus, adaptive practice that explains every answer, and full mock exams that feel like test day. Full courses for the IELTS, SAT, GCSE Maths, ACT and 34 more today; any other exam can be built on demand in a few minutes.
Popular now:IELTSSAT (Digital)GCSE MathematicsACT (Enhanced)
The catalogue
Every course follows the official specification section by section, and every score is reported on the exam’s own scale.
How it works
No streaks, no noise. Each session moves you through the same loop, and the loop tightens around whatever is still costing you marks.
A lesson for every topic on the official syllabus, with worked examples and quick checks that explain every option.
Adaptive questions aimed at your weakest skill. Every answer is explained, and you can ask why your choice was wrong.
Full-length, timed tests in a frame modelled on the real one, scored on the official scale.
After every session, a predicted score with its range. The range narrows as the evidence grows.
Every miss becomes a review card, scheduled for the day before you’d forget it.
Mock exams
Mocks run in a quiet, full-screen frame modelled on the real test, with its sections, timing and breaks. Nothing else on screen: no prompts, no pop-ups.
It turns amber at five minutes, never red, and can be hidden.
The answer eliminator and review page, where you expect them.
Calculator and reference sheet where the exam has them, nowhere else.
A to D to choose, X to strike out, F to mark, Left arrow Right arrow to move.
Predicted score
Your predicted score is never a single flattering number. It says how sure it is, and it earns certainty only from your answers.
Every answer updates your mastery of the topic it tests, weighted by how hard the question was.
Topics count in proportion to their share of the real exam, section by section.
The result goes through the same scoring curves as a full mock, so it lands on the official scale.
With little evidence the range is wide. It narrows as you answer more questions and sit more mocks.
We don’t publish success rates or prediction accuracy until we can back them with official score reports. When we do, every figure will state its sample size and period.
How the range narrows
SAT · target 1550
After the diagnostic
1280 · likely 1190–1370 · one test
Week 3
1370 · likely 1320–1420 · 400 answers · 1 full mock
Week 8
1430 · likely 1400–1460 · 1,200 answers · 2 full mocks
Pricing
Questions
Anything else? Each exam page answers the questions specific to that exam.
855 exams across English proficiency, admissions tests, school qualifications, national exams, IT certifications and professional qualifications. 38 have full courses today. Any other exam can be built on demand: Courselo drafts its syllabus, lessons and practice from the verified format, and checks them before you use them.
Every lesson and strategy guide, 40 practice questions a day, the diagnostic plus 1 full mock per exam, 3 AI gradings of essays or speaking a week, and the AI tutor for 10 messages a day. Pro removes every limit.
From your mastery of each topic, weighted by that topic’s share of the real exam and run through the same scoring curves as a full mock. It is always shown as a range, and the range narrows as you answer more questions.
No. Courselo is independent. Each course follows the published specification, and every exam page says when its format and scoring were last checked against official sources.
Some courses are built from the exam’s official specification the first time a lesson or question is needed. Each item is validated against the course structure and checked for correctness before it is shown, then kept so every learner sees the same material. Courses written entirely by our team don’t carry the label.
Yes. Manage or cancel your subscription from the billing portal in your account. Your progress stays with you on the free plan.
Choose your exam, take the diagnostic, and get a plan built around your test date.
Linear equations in two variables
A linear equation in two variables describes a line: every point on the graph is a pair that makes the equation true.
“Every line question reduces to two facts, the slope and one point.”
Predicted SAT score
1430likely 1400–1460
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Which choice completes the text with the most logical and precise word or phrase?
Module 1
Question 12 of 27