# Astra AI > The most advanced AI tutor. More than 10 million satisfied students. Astra AI is your personal AI tutor for all subjects, guiding you step by step. Your notes, your slides, your past papers. Astra AI builds a study plan around them so you walk into exam day ready. - Exam prep: Turn your study materials into a clear plan, with practice and mock exams. - AI tutor: Work through tricky questions with step-by-step explanations. - Play & progress: Interactive apps and challenges that keep you learning. ## Get started - [Try for free](https://app.astra-ai.co/en-US/onboarding): Create an account and start studying in the web app - [Pricing](https://app.astra-ai.co/en-US/pay) - [Log in](https://app.astra-ai.co/en-US/login) - [iOS app](https://apps.apple.com/si/app/astra-ai-personal-math-tutor/id6751030141): On the App Store - [Android app](https://play.google.com/store/apps/details?id=co.astra_ai.app.twa): On Google Play ## Subjects - [Math](https://astra-ai.co/subjects/math/) - [Chemistry](https://astra-ai.co/subjects/chemistry/) - [Physics](https://astra-ai.co/subjects/physics/) - [German](https://astra-ai.co/subjects/german/) - [Biology](https://astra-ai.co/subjects/biology/) - [Geography](https://astra-ai.co/subjects/geography/) - [History](https://astra-ai.co/subjects/history/) - [Economics](https://astra-ai.co/subjects/economics/) - [Computer science](https://astra-ai.co/subjects/computer-science/) - [Philosophy](https://astra-ai.co/subjects/philosophy/) - [Psychology](https://astra-ai.co/subjects/psychology/) - [Spanish](https://astra-ai.co/subjects/spanish/) - [French](https://astra-ai.co/subjects/french/) ## Languages - [Spanish (Argentina)](https://astra-ai.co/es-AR/) - [Bulgarian](https://astra-ai.co/bg/) - [Malay (Brunei)](https://astra-ai.co/ms-BN/) - [Portuguese (Brazil)](https://astra-ai.co/br/) - [Spanish (Chile)](https://astra-ai.co/es-CL/) - [Czech](https://astra-ai.co/cs/) - [Danish](https://astra-ai.co/da/) - [German](https://astra-ai.co/de/) - [Greek](https://astra-ai.co/el/) - [English](https://astra-ai.co/) - [Spanish](https://astra-ai.co/es/) - [Estonian](https://astra-ai.co/et/) - [Finnish](https://astra-ai.co/fi/) - [French](https://astra-ai.co/fr/) - [Croatian](https://astra-ai.co/hr/) - [Hungarian](https://astra-ai.co/hu/) - [Indonesian](https://astra-ai.co/id/) - [English (India)](https://astra-ai.co/en-IN/) - [Italian](https://astra-ai.co/it/) - [Japanese](https://astra-ai.co/ja/) - [Khmer](https://astra-ai.co/km/) - [Korean](https://astra-ai.co/ko/) - [Lao](https://astra-ai.co/lo/) - [Lithuanian](https://astra-ai.co/lt/) - [Latvian](https://astra-ai.co/lv/) - [Malay](https://astra-ai.co/ms/) - [Spanish (Mexico)](https://astra-ai.co/mx/) - [Burmese](https://astra-ai.co/my/) - [Dutch](https://astra-ai.co/nl/) - [Norwegian](https://astra-ai.co/no/) - [Spanish (Peru)](https://astra-ai.co/es-PE/) - [English (Philippines)](https://astra-ai.co/en-PH/) - [Polish](https://astra-ai.co/pl/) - [Portuguese](https://astra-ai.co/pt/) - [Romanian](https://astra-ai.co/ro/) - [Slovak](https://astra-ai.co/sk/) - [Slovenian](https://astra-ai.co/sl/) - [Serbian](https://astra-ai.co/sr/) - [Swedish](https://astra-ai.co/sv/) - [Thai](https://astra-ai.co/th/) - [Portuguese (Timor-Leste)](https://astra-ai.co/pt-TL/) - [Turkish](https://astra-ai.co/tr/) - [Ukrainian](https://astra-ai.co/uk/) - [Vietnamese](https://astra-ai.co/vi/) - [Chinese (Hong Kong)](https://astra-ai.co/zh-HK/) - [Chinese (Taiwan)](https://astra-ai.co/zh-TW/) ## Optional - [Sitemap](https://astra-ai.co/sitemap.xml): Every page of the site in every language - [How to Study the Night Before an Exam](https://astra-ai.co/blog/studying-the-night-before-an-exam/): Learn how to study the night before an exam with a smart cram plan: triage your topics, use active recall, and protect your sleep for better results. - [Learn every subject with an AI tutor that actually helps](https://astra-ai.co/blog/learn-every-subject-with-an-ai-tutor/): Discover how AI tutors help master math, physics, chemistry, languages, and 10+ subjects with step-by-step solutions and instant help. - [Brainly App Review: How good is it?](https://astra-ai.co/blog/brainly-app-review/): Find out how Brainly’s community plus AI helps with homework and where a purpose built AI tutor like Astra AI delivers more consistent results. - [Is Innovamat Worth It? Comparison with AI Tutoring](https://astra-ai.co/blog/is-innovamat-worth-it/): Compare Innovamat with AI tutoring—implementation, teaching methods, costs, and real outcomes—to decide which path boosts grades faster. - [Should You Study With Knowunity?](https://astra-ai.co/blog/should-you-study-with-knowunity/): Compare Knowunity’s quick notes with Astra AI’s step-by-step tutoring. See which fits your exam plan, progress tracking, and multi-step problems best. - [Meet Exam Prep by Astra AI: The smarter way to learn](https://astra-ai.co/blog/exam-prep-wtih-astra-ai/): Turn notes, past papers, and textbooks into a clear study plan. Track progress, practice with quizzes and flashcards, and learn on web or mobile. - [The best AI chemistry tutor for step-by-step help and faster learning](https://astra-ai.co/blog/the-best-ai-chemistry-tutor/): Compare the best AI chemistry tutor apps for step-by-step help, reaction solvers, and study plans. Find fast, accurate answers that you can trust. - [What Is AI Tutoring? Benefits, Examples, Math Focus](https://astra-ai.co/blog/what-is-ai-tutoring/): Learn how AI tutors and intelligent tutoring systems work, deliver step-by-step help, support math and exams, and how to choose and use them in class. - [How Does AI Impact Education?](https://astra-ai.co/blog/how-does-ai-impact-education/): Clear look at AI in education: benefits, risks, real classroom uses, policy trends and tools. Practical steps for schools, teachers and students. - [The Best AI Math Tutor: Top AI Tutors Compared](https://astra-ai.co/blog/the-best-ai-math-tutor/): Compare the best AI math tutor options for 2025 with pricing, features, curriculum alignment, privacy, and results to pick the right tool. - [Traditional Tutoring vs. AI Tutoring: Which Is More Effective?](https://astra-ai.co/blog/traditional-tutoring/): Discover whether traditional tutoring or Astra AI offers better value. Compare flexibility, motivation, and learning success for today’s students. - [Khan Academy for Math: Is There a Better Solution?](https://astra-ai.co/blog/khan-academy-for-math/): Khan Academy for math offers great videos, but Astra AI gives real-time help, interactive tutoring, and step-by-step support for real problem-solving. - [The Best Photomath Alternative](https://astra-ai.co/blog/photomath-alternative/): What is the best Photomath alternative? Meet your personal AI tutor for quick problem-solving, clear explanations, and deep math understanding. - [ChatGPT for Math: What Is the Best Alternative?](https://astra-ai.co/blog/chatgpt-for-math/): Find the best ChatGPT Math alternative for quick solutions, clear explanations, and a better understanding of mathematics.