Decipher Physics vs Qedra

Decipher – Physics practice problems and GCSE revision (suitable for AQA, Edexcel). No cost, completely free to use. Practise physics with questions linked to the Decipher Physics video lessons, plus a full set of GCSE revision questions. Built for AQA and Edexcel Combined Science and Triple Science, and useful for A-level and beyond. What you get: - Interactive lessons and practice questions on topics from the video lessons - GCSE Physics revision (Legacy section): 190+ exam-style questions for AQA and Edexcel - Step-by-step solutions and clear feedback for every question - Progress tracking so you can see what you’ve done and what to revise - Practice by topic or by exam paper (GCSE) Key features: - Topic-linked practice: pick a topic, then work through the questions for that topic. - Full GCSE coverage: Energy, Electricity, Particle Model, Atomic Structure, Forces, Waves, Magnetism, Space Physics - Range of question types: multiple choice, select all correct, fill in the gaps, calculations, equation recall - Instant marking with explanations - Progress and analytics to track improvement - Simple, focused interface for revision Perfect for: - Students using the Decipher Physics YouTube channel who want to practise as they learn - GCSE students preparing for AQA or Edexcel Physics (Combined or Triple) - A-level and university students brushing up on core physics - Independent revision and exam preparation Completely free to use.

Work through supported calculus, algebra and matrix problems offline, with exact answers and steps you can follow. Qedra brings university mathematics to your iPhone and iPad. Calculations run on your device, even in airplane mode. No account is needed. BUILD THE PROBLEM YOU MEAN Enter derivatives, integrals and limits with guided fields. Use a matrix grid for determinants, inverses, row reduction, rank and eigenvalues. Check the live preview before solving, or type directly with the mathematics keyboard. UNDERSTAND THE WORKING Open a step to read its named rule, explanation and assumptions. Fractions stay exact. Where a verification check is available, Qedra shows its result and limitations. Some inputs remain symbolic or receive a method-limit explanation. KEEP YOUR REVISION NOTES Save useful problems in a course notebook, add your own notes and labels, search your collection and mark topics to revisit. Saved problems keep their original notation, operation and real or complex setting. Notebooks stay on this device. PRACTISE WITH HINTS Try a problem yourself, ask for a hint and reveal the solution one step at a time. Supported practice topics include power-rule derivatives, polynomial integrals, integration by parts, 2 × 2 determinants and linear equations. Scratch work is not automatically graded. MATHEMATICS FOR YOUR COURSEWORK - Algebra, equations and inequalities - Limits, derivatives and supported integrals - Partial derivatives, multiple integrals and vector calculus - Exact determinants, inverses, row reduction, rank and eigenvalues - Discrete mathematics, probability and statistics - Complex arithmetic Decimal-comma input, notation settings, a rule reference library and translated explanations help you follow the mathematics in your own way. START WITH THE FREE TIER Get unlimited answers, three full worked solutions per day, the most recent 100 unpinned history entries, one course notebook and one practice example per topic. Pinned history stays until you delete it. Text sharing and copying answers as LaTeX are included. The free tier can show a banner on the Solve screen. QEDRA PRO Pro adds unlimited worked solutions and history, more course notebooks, additional practice variations, formatted solution PDF export and no ads. PDFs include the answer, working, assumptions and verification. Existing notebooks remain readable and editable if Pro ends. Choose a monthly or annual subscription, or a one-time Lifetime purchase. Localized prices, billing periods and any eligible offer are shown before you purchase. Lifetime does not renew. Your problems and notebook notes are not uploaded to a Qedra server or sent to the advertising partner. Purchases and advertising services can use an internet connection; see the privacy policy for their data practices. Subscriptions renew automatically unless cancelled at least 24 hours before the current period ends. Payment is charged to your Apple Account at confirmation, or after an eligible trial as shown before purchase. Manage or cancel in Settings > your Apple Account > Subscriptions. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://mwsupplylimited.github.io/qedra/privacy.html