Zdane: Ósmoklasista i Matura

Zdane is a study app for the eighth-grade exam and the basic secondary school leaving exam. One app, two exams—you choose yours and learn exactly what's on the test paper.

📐 TASKS THAT CAN'T BE MEMORIZED
The math problems aren't copied from a pre-written list—the app calculates them anew each time. Instead of hundreds of questions, you have a practically infinite number. Each problem has a step-by-step solution, and you can ask for a hint before answering.

🎒 EIGHTH GRADE EXAM
• Mathematics — 13 sections: numbers, fractions, powers, percentages, equations, proportions, figures, the Pythagorean theorem, circles, solids, data analysis, probability, and practical tasks
• Polish — required reading, stylistic devices, grammar, spelling, forms of expression, and literary theory
• English — tenses, vocabulary, linguistic reactions, prepositions, transformations

🎓 MATURA — BASIC LEVEL (FORMULA 2023)
• Mathematics — 16 sections: from real numbers and logarithms, through functions, sequences, and trigonometry, to planimetry, analytic geometry, stereometry, combinatorics, probability, and optimization
• Polish — eras, required reading, literary theory, language in use, mythology, and the Bible
• English — tenses and tense sequence, vocabulary B1/B2, phrasal verbs, passive voice, transformations

📝 SAMPLE PAPERS WITH CLOCK
A complete simulation: as many tasks and as many minutes as in a real exam. Solutions are not fully visible—only after submitting the paper do the results appear, the translation into exam points, and a discussion of each task with an error occur.

🔁 ERROR REVIEW THAT REALLY WORKS
Every task with an incorrect answer returns—first tomorrow, then in two days, four days, a week, two weeks, and a month. This is a spaced-out review system, the same one used in language learning. After six successful repetitions, the task disappears from the queue as learned.

📊 SEE WHERE YOU REALLY STAND
• Performance in each section separately – you'll immediately know what to review
• Graph of the last two weeks and your study streak
• Score prediction: how many points a real exam paper would give you today

⏳ EXAM COUNTDOWN
The app knows the official dates for the May exam session and shows how many days are left. Plus, a daily goal – 10, 20, 30, or 50 problems – because it's better to do a few, but every day.

🔒 HONEST ABOUT DATA
No ads. No advertising ID. No analytics. No selling your data to anyone. We only store what's needed to run your account: name, email address, selected exam, and study results. Delete your account with a single click – all your data disappears with it. You can also study without an account and create one later, without losing a single solved problem.

✦ ZDANE PRO
The app is free: 15 exercises per day, one paper per week, and five daily revision exercises are enough to see if it's right for you. PRO removes the limits and provides a score prediction and full statistics. You can cancel your subscription at any time in the Play Store settings.

What ZDANE DOES NOT do: It does not grade essays or dissertations. This is the examiner's job, and no app can do it reliably—so we don't pretend to. You practice everything that can be objectively assessed, which is what accounts for the majority of points in both math and foreign language exams.

ZDANE is not affiliated with the Central Examination Board. Dates and material covered are based on official CKE announcements.