Rosetta Stone Classic (2024) vs Relativity Lab

⏺ This app is only available for current Rosetta Stone Classic subscribers, and existing enterprise/education users. ⏺ New to Rosetta Stone? Check out Rosetta Stone Sapphire, the brand new Rosetta Stone experience! There, you can explore all of the latest features from the experts in language learning. Learning a language can be an experience that transforms your life. Over 25 years of language learning experience has taught Rosetta Stone one thing: everyone has the ability to learn to read, write, and speak a language with confidence. Try the Rosetta Stone app yourself for free. Many online language learning apps will promise that you can learn a language in just a few minutes a day. However, there is a significant difference between memorizing vocabulary lists and speaking a language with confidence. Learning a language is about more than just the words. One of the mistakes new language learners make is treating language as an object or an end goal instead of as an experience. Ditch the books, translator, and dictionary, and surround yourself with a language whenever, wherever with the Rosetta Stone mobile app. What are people saying about Rosetta Stone: • CNN Underscored - "There’s a good reason why the language learning app Rosetta Stone is the gros chien (that is, the big dog) of the apps we tested" • Mashable - "one of the OG language-learning services, known for its deep dive into accent pronunciation" • Popular Science - "super-smooth and intuitive, and the lessons neither feel too short so as to be forgettable nor too long so as to be a chore" • PC Mag - "reliable, accurate, and thorough" Rosetta Stone has taught millions of people new languages, and you’re next. From day one, you’ll: • Stay focused with a personalized language learning plan based on your motivation. • Learn a language intuitively using our proven immersion method. • Perfect your pronunciation with instantaneous feedback. • Download lessons to do everything offline. • Access different kinds of exercises with our Extended Learning features. • Sync progress across all your devices. • And never see an ad, ever. Choose from 24 languages: Arabic, Chinese (Mandarin), Dutch, English (American or British), Filipino (Tagalog), French, German, Greek, Hebrew, Hindi, Irish, Italian, Japanese, Korean, Persian (Farsi), Polish, Portuguese (Brazil), Russian, Spanish (Latin American or Spain), Swedish, Turkish, or Vietnamese. Enterprise and Education Learners • Unlimited use of Rosetta Stone's mobile app is available for existing Enterprise and Education Learners. • Features may vary for Enterprise and Education Learners. For questions or assistance, please visit http://support.rosettastone.com Learn a language today with Rosetta Stone. Learn Spanish (Latin American or Spain) Learn French Learn German Learn Italian Learn English (American or British) Learn Japanese Learn Korean Learn Chinese (Mandarin) Learn Arabic Learn Portuguese (Brazil) Learn Russian Learn Dutch Learn Filipino (Tagalog) Learn Greek Learn Hebrew Learn Hindi Learn Irish Learn Persian (Farsi) Learn Polish Learn Swedish Learn Turkish Learn Vietnamese For questions or assistance, please visit http://support.rosettastone.com

Relativity Lab is a professional educational app designed to help students, teachers and science enthusiasts explore the ideas of Einstein’s relativity and modern cosmology through structured learning, interactive simulations and visual explanations. The app covers special relativity, general relativity, GPS clock correction, gravitational waves, black holes, famous experiments, physics dictionary support, guided learning routes, classroom teaching tools and a full Cosmology Institute. FEATURES Einstein Academy Follow a structured learning pathway covering key concepts in relativity, spacetime, time dilation, gravity and modern physics. Interactive Relativity Lab Use visual simulations to explore abstract physics ideas in a clearer and more practical way. GPS Relativity Learn why satellite navigation needs relativistic correction and how tiny timing differences matter in real engineering. Solar System Relativity Compare relativistic effects across different objects and gravitational environments. Black Hole Explorer Explore event horizons, photon spheres, strong gravity and key black-hole concepts using educational visual tools. Gravitational Waves Understand inspiral, merger and ringdown stages, and learn how spacetime ripples connect to Einstein’s theory. Famous Experiments Review major experimental evidence including the 1919 eclipse test, Mercury’s perihelion, GPS verification and gravitational wave detection. Physics Dictionary Search and review important terms in English, Traditional Chinese and Simplified Chinese. Cosmology Institute Explore the Big Bang, Hubble’s Law, redshift, dark matter, dark energy, cosmic microwave background, observatory missions, research tools, visual simulations and guided learning paths. Teacher and Classroom Mode Use lesson planning tools, student activity sheets, discussion prompts and assessment rubrics for classroom-style learning. Portfolio and Mastery Tools Complete quizzes, revision cards, learning portfolios, milestone summaries, screenshot planners and certificate preparation tools. Relativity Lab is designed for educational use. It uses simplified models and visualisations to support understanding. It is not intended to replace formal scientific analysis, professional research software or official academic instruction.