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An independent exam-prep platform: 222 question banks, 73,642 questions, every multiple-choice item written with a full rationale.
CoStudy is building the next generation of professional certification and exam preparation by combining adaptive learning and commercial-grade study content in one platform. The mission is simple: help learners pass high-stakes exams faster, with greater confidence, and on their first attempt.
Traditional study platforms lean on static question banks and one-size-fits-all content. CoStudy delivers a personalised experience that adapts to a learner's strengths, weaknesses and study habits through performance analytics and per-chapter progress tracking, on the web and in the iOS app.
Flashcards, multiple-choice questions with written rationales, task-based simulations and scenarios, full-length timed practice exams weighted to the published blueprint, personalised study plans, and readiness reporting by domain rather than as a single blended percentage. A sample of every bank is free to read in full, rationales included, with no account.
Professionals and students preparing for industry-recognised certifications across accounting and finance, cloud computing, information technology, healthcare and nursing, project management, cybersecurity, data and analytics, business operations and licensing and compliance.
Every bank is written from the certifying body's published exam content outline, with chapters mapped to published domains and question counts proportional to published weights. Every multiple-choice item carries a rationale that states the controlling principle and addresses each wrong option. Banks are audited before shipping for answer-letter clustering and for answer-length bias — two mechanical tells that let a candidate score well without knowing the material.
We do not assert thresholds, fees or deadlines we are not confident are current, because those figures are re-indexed annually and a study bank that states last year's number as this year's rule teaches something false with confidence. The full policy is on the editorial policy page, and material corrections are published in a dated corrections log.
CoStudy is an independent study tool. We are not affiliated with, endorsed by, or sponsored by any certifying or testing organisation referenced on this site. All trademarks belong to their respective owners. Where a bank cites a certifying body, that citation points at the body's own published material, which is the only authority on fees, eligibility and current exam rules.
In regulated fields — nursing, accounting, securities — treat CoStudy as practice material and check anything consequential against the certifying body's published guidance.
CoStudy's question banks are written and maintained by Nick Burton, Founder, CoStudy, against the certifying bodies' published exam blueprints, and kept current as those blueprints change. Bank pages carry a byline naming who maintains them and the date they were last reviewed.
Corrections, questions and partnership enquiries: support@costudy.net. If you have found a question that is wrong, out of date or ambiguous, that is the fastest way to get it fixed — and fixes are recorded publicly.
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