Грамота vs Qedra

Грамота (Gramota) is an on-device proofreader for Russian that runs entirely on your iPhone, iPad, or Mac. Native speakers often write "by ear" — and small grammar and spelling slips are easy to miss. Грамота catches and fixes them in seconds, without ever sending your text to a server. PRIVATE BY DEFAULT • The model runs locally on your device. • Your text is never uploaded or stored in the cloud. • Works fully offline. CATCHES WHAT'S EASY TO MISS • Spelling, soft-sign endings, and easily confused letters. • Punctuation, typos, and word agreement. RIGHT FROM THE SHARE MENU • Select text in any app → Share → Грамота. • Get the corrected version and copy it with one tap. • Long passages open in the app with live progress. SEE WHAT CHANGED • Corrections are highlighted, and a writing score shows how clean your text is. One app for iPhone, iPad, and Mac. Note: Грамота corrects grammar and spelling — it doesn't rewrite style or replace careful review. For important text, double-check meaning, names, and numbers yourself. Note: This model operates entirely on your device. The older your device, the longer it will take to obtain a result, but rest assured, you will receive a result!

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