Astra AI

Astra AI

Astra AI is a personal AI tutor and exam-prep platform that turns your notes, slides and past papers into study plans, quizzes and mock exams across many subjects.

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Last Updated Oct 21, 2026
Astra AI screenshot

About

Astra AI is an AI-powered tutoring and exam-preparation platform that helps students study more efficiently by working from their own materials. Instead of re-reading notes and guessing what matters, users upload lecture notes, PDFs, slides, textbook photos, links or past papers, set an exam date and a target grade, and Astra AI builds a step-by-step study plan around exactly what will be tested.

The product combines an AI tutor that answers questions and walks through problems with structured exam-prep workflows, practice formats and mock exams. According to its official site, more than 16 million students across 100+ countries use it, and it holds a 4.73 average rating on iOS. It covers subjects including math, chemistry, physics, biology, history, geography, economics, psychology, English, Spanish, French and German, along with curated preparation for selected official exams such as IB Math and Matura.

Key Features

Exam Prep from your own materials: Users upload notes, slides, past papers or photos, and Astra AI generates a topic-by-topic study plan tied to their exam date and target grade.
AI Tutor with step-by-step explanations: Students can ask questions by chat, voice or photo, and the tutor explains concepts at their level, allowing follow-up questions until the material is understood.
Photo scanning of problems: A camera-based feature lets users snap a picture of any problem and receive a guided, step-by-step walkthrough rather than just an answer.
Multiple learning formats: The platform generates quizzes, flashcards, guided lessons, true/false exercises, repetition drills, smart-text lessons and even auto-generated topic podcasts, so learners can pick the format that suits them.
Graded mock exams: Realistic oral and written mock exams, both graded, let students rehearse under exam-like conditions before the real day.
Interactive learning apps: Dozens of interactive tools, including 3D simulations and visual models, help students explore difficult concepts hands-on, and users can build their own study apps.
Progress tracking and motivation: Streaks, milestone badges, weekly learning-time charts and mastery scores show progress and encourage daily study habits; brain games offer study breaks that stay mentally engaging.

Pricing & Fees

  • Pricing: Not publicly listed on the pages we reviewed; check the official site for current plans.
  • Free tier: Astra AI can be tried for free with no card or setup required, according to the official site.
  • Platforms: Available as a web app plus native apps on iOS (App Store) and Android (Google Play).
  • Teacher offer: Teachers can get a free year of Astra AI Plus, and a separate parent dashboard helps families follow their child's progress.
  • Guarantee: The company states that if a student's grade does not improve by at least two levels, they can get their money back.

Who It's For

Astra AI is aimed primarily at middle school, high school and university students who need help understanding coursework, preparing for exams, or getting unstuck on specific problems. It also serves candidates preparing for official exams such as IB Math and Matura, language learners studying English, Spanish, French or German at levels from A1 to C2, and parents who want a tutor-like tool for their children with visibility into progress. Teachers can use it for lesson planning, material and test creation, and classroom activities.

FAQ

What is Astra AI?Astra AI is a personal AI tutor and exam-prep platform that builds study plans from a student's own materials and explains topics step by step across a wide range of subjects.

Is there a free plan?Yes, the official site offers a free way to try the tutor — snapping a problem or asking a question requires no card or setup — though full details of paid plans are not publicly listed on the pages reviewed.

Which platforms does Astra AI run on?It runs as a web app and offers dedicated apps on iOS via the App Store and on Android via Google Play.

How is Astra AI different from a general chatbot?According to its own FAQ section, it teaches from the user's uploaded materials rather than random internet content, adapts to the student's level and pace, and focuses on guided practice and mock exams instead of simply supplying answers.

Does it just give answers?No — the product is designed to explain each step of a problem so students learn the method, with graded practice, repetition and mock exams to check understanding.