Periodic Table Ultimate vs Grade Scale Pro

Periodic Table Ultimate — learning, made simple Studying chemistry doesn’t have to be confusing or intimidating. Periodic Table Ultimate helps you actually get the elements with a clean, interactive experience built for students. Everything is designed to be clear, visual, and easy to explore, right on your iPhone. Open the app and dive into a smooth, zoomable Periodic Table. Tap any element to see a short, easy-to-read info card that works offline, perfect for quick studying or last-minute reviews. Want to see what atoms really look like? Use Augmented Reality to place 3D atoms right in your space. Rotate them, look closer, and understand their structure in a way textbooks can’t show. You can also explore atomic spectra or compare atomic sizes using simple visual tools. Need extra help? ChemAI is an optional study buddy that can explain concepts, answer questions, and help you work through topics at your own pace. Make the table feel personal. Switch between color styles, group elements by their properties, and use Dark Mode for comfortable late-night studying. Pinch, zoom, and explore however you like. Whether you’re studying for class, preparing for exams, or just curious about how matter works, Periodic Table Ultimate gives you a relaxed, friendly way to learn chemistry. Take it slow. Tap around. Explore. Chemistry is easier when it feels approachable. 〉Features 
• Interactive Periodic Table in modern, classic, and long layouts
 • Offline element info cards
 • Augmented Reality elements and 3D atom models
 • Interactive atomic spectra (NIST data) 
• Atomic radius comparison visuals 
• Custom color themes and property-based grouping 
• Adjustable element data (atomic mass, electron levels, and more) 
• Smooth pinch-to-zoom controls 
• Dark Mode support 
• Fast search by element name or symbol
 • Optional subscription for advanced data and the ChemAI Tutor Terms of Use: http://getchemistry.io/terms-and-conditions/ios/ Privacy policy: http://getchemistry.io/privacy-policy/ios/

Escala de Notas Pro is a tool for teachers who need to turn scores into grades and estimate standardized test results quickly and accurately. GRADE SCALE • Set the maximum score, pass threshold, and the minimum, maximum and passing grades. • Choose the score increment, such as 1 or 0.5 points. • Use built-in presets for tests, labs, and strict or flexible grading. • Sort the table in ascending or descending order and adjust the text size. • Export the scale or share it to paste into a spreadsheet. ADMISSION TESTS AND LEARNING ASSESSMENTS Turn on up to 3 tests in Settings. Each one appears as its own tab. PAES (Chile) • Converts correct answers into a score using the official DEMRE table, 2026 Admission. • Reading, Math M1 and M2, Science, and History and Social Sciences. • Proportional adjustment for practice tests with a different number of questions, plus an option to exclude pilot questions. SIMCE (Chile) • Estimated score and Learning Level (Adequate, Elementary or Insufficient) based on the current cut scores. • 2nd, 4th, 6th, 8th and 10th grade, in Reading, Math and Science. SAT (United States) • Section scores (200–800) and total score (400–1600) for Reading and Writing and for Math. ACT (United States) • Section and composite scores (1–36) for English, Math and Reading. • Optional Science section, with STEM score. FOR EVERY TEST • Full conversion table: tap a row to see that score. • Target score: shows how many correct answers are needed to reach it. • Linear method or custom table: paste the table from your test prep center, school or practice test. • Export the conversion table. LANGUAGE AND SUPPORT • Available in Spanish and English. • Contact us from Settings: the email includes app and device details so we can help you better. PRIVACY • No sign-up or internet connection required. • All calculations happen on your device. • Free, with no subscriptions. SIMCE, SAT and ACT scores are estimates for practice tests. Escala de Notas Pro is an independent tool and is not affiliated with DEMRE, the Agencia de Calidad de la Educación, College Board or ACT, Inc. SAT is a registered trademark of College Board. ACT is a registered trademark of ACT, Inc.