Basic and Advanced Grammar vs Chem It Up

Build a stronger English foundation without getting lost in a complicated interface. Basic and Advanced Grammar brings grammar, vocabulary, pronunciation, reading, practice, and targeted review into one focused learning path from A1 to C1. LEARN GRAMMAR CLEARLY • Keep access to all 172 learning lessons from the original app—always free • Study 120 structured A1–C1 grammar lessons • Learn with clear explanations, English examples, common mistakes, and practice activities • Revisit weak topics after quizzes instead of reviewing everything again GROW YOUR VOCABULARY • Explore 4,318 A1–C1 words • See IPA pronunciation and hear words with your device’s voice • Practice words in short, manageable sessions • Use quiz results to focus on vocabulary that needs more work PRACTICE PRONUNCIATION AND READING • Speak words and phrases, then compare recognized speech after granting microphone and speech-recognition permission • Read 10 original stories and articles across CEFR levels • Check comprehension with questions and explanations PREPARE WITH ORIGINAL EXAM PRACTICE Try 36 compact practice mocks with 216 original questions covering 12 widely used English exams: IELTS Academic, IELTS General Training, TOEFL iBT, Cambridge A2 Key, B1 Preliminary, B2 First and C1 Advanced, PTE Academic, TOEIC Listening & Reading, Duolingo English Test, YDS, and YÖKDİL. The first mock for every exam is free. Additional mocks are included with Premium. These are compact learning activities, not full-length reproductions of the official exams. LEARN YOUR WAY • See progress and weak areas in one place • Get review suggestions based on your quiz results • Start without creating an account • Keep learning progress on your device PREMIUM Choose a monthly or yearly auto-renewable subscription to unlock all premium lessons, the complete vocabulary experience, premium readings, and additional exam mocks. Premium also removes advertising. Prices are shown in the app before purchase. You can manage or cancel a subscription in your Apple Account settings and restore eligible purchases in the app. Exam names and related marks belong to their respective owners. Basic and Advanced Grammar is an independent learning app and is not affiliated with, approved by, or endorsed by any exam provider. All practice questions and reading material in the app are original. Terms of Use (Apple Standard EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Discover chemistry with a clear, colorful and practical reference designed for students and curious minds. EXPLORE THE PERIODIC TABLE Browse all 118 elements in a familiar periodic-table layout. Filter elements by chemical family or traditional A group, and view atomic masses, properties, common bonding behavior and example compounds. DISCOVER MOLECULES AND COMPOUNDS Explore hundreds of molecule, ion and compound examples. Move between an element and the compounds that contain it, then review formulas, molar masses and bonding information. UNDERSTAND ANALYTICAL METHODS Learn what NMR, FTIR, UV/Vis, GC-MS and HPLC can reveal, how each method works, typical applications and important limitations. CALCULATE MOLAR MASS Enter chemical formulas—including parentheses and hydrates—to calculate molar mass and see the contribution of each element. SPELL YOUR NAME WITH ELEMENTS Turn a name into a playful sequence of chemical symbols. For example, Benan becomes BeNaN: beryllium, sodium and nitrogen. LEARN IN YOUR LANGUAGE Switch between English and Turkish at any time. Save favorite elements for quick access; your preferences remain on your device. Chem It Up is an educational reference. It does not replace laboratory procedures, safety data sheets or professional scientific assessment.