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Meet Aeva — your AI study buddy

Your AI study assistant for every subject

Study smarter for Biology

StudyAssistant helps with homework, exam prep, and everyday learning: chat with your PDFs and notes, search the web, and turn any answer into flashcards, quizzes, and notes — then Aeva remembers what you studied and tells you exactly what to revise.

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School · Biology
Explain photosynthesis with a simple diagram.
Web

Photosynthesis is how plants turn sunlight into food. It happens in the chloroplasts of leaf cells.

        Sunlight
           │
           ▼
6CO₂  +  6H₂O  ──►  C₆H₁₂O₆  +  6O₂
(air)   (roots)     (glucose)  (released)
  • Light reactions — chlorophyll captures sunlight and splits water
  • Calvin cycle — carbon dioxide is fixed into glucose

So plants make their own food and release the oxygen we breathe.

Sources used for this answer
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  • Biology
  • Calculus
  • History
  • Physics
  • Chemistry
  • Economics
  • Literature
  • Computer Science

More than a chatbot — a complete learning system

Homework help, exam prep, and spaced-repetition revision — discover, learn, save, and remember in one place.

AI Revision Mode

Spaced repetition, run by Aeva. Every topic gets a memory-strength score and a review date — your dashboard shows what needs revision, why, and one tap starts a revision session, quiz, or flashcard review.

AI Quiz Generator

Turn any topic, answer, or PDF into a practice quiz — multiple-choice, multi-select & true/false questions with instant AI grading and feedback.

AI Flashcard Generator

Auto-generate flashcard decks from responses, PDFs, or quizzes. Flip, shuffle, and study with Easy / Hard / Needs-Revision ratings.

AI Chat Assistant

Meet Aeva — your AI tutor for homework help. Ask anything and get clear, streaming answers that pick the right tool automatically.

Study Spaces

Give every subject its own workspace — chats, notes, quizzes, flashcards, and files together, with per-space progress and weak-topic tracking.

Real Notes Editor

Write markdown notes, save any AI answer as a note and refine it, then export to PDF or share with a link.

Chat with Your PDFs

Upload PDFs, notes, and images — Aeva answers from your own material with page-level citations.

Live Web Search

Web-grounded answers with rich source cards, so everything is current and verifiable.

AI Diagrams & Images

Ask for a labelled diagram or illustration and Aeva generates it right inside the chat answer.

Share with Friends

Share quizzes, quiz results, and notes with a public link — friends can attempt your quiz without an account.

Learning Analytics

Study time, streaks, quiz trends, subject breakdown, and achievements — one dashboard for your whole learning life.

Bookmarks & Global Search

Save responses, quizzes, and flashcards into folders — then find anything across chats, files, and decks instantly.

NEW · AI Revision Mode

Aeva remembers what you learn — so you don't forget it

Most study apps stop at the answer. StudyAssistant tracks a memory strength for every topic and builds a daily revision plan around it — what needs revision now, what's due today, and what you've recently mastered.

  • Spaced-repetition schedule

    Every topic you study gets a review date timed to just before you'd forget it — no planning required.

  • Weak topics, with reasons

    Aeva watches your quiz scores and flashcard ratings and tells you why a topic is due — like “You scored 58% on this 3 days ago.”

  • Confidence check-ins

    After each session, tell Aeva how it went — 😕, 🙂, or 😎 — and your revision schedule adjusts instantly.

  • Streaks that keep you going

    Start each day with a recap of what you studied yesterday, what's due today, and the streak you don't want to break.

The complete learning journey

A loop designed to make you actually remember — not just chat.

Chat

Ask Aeva anything — from your notes, a PDF, or the live web.

Flashcards

Turn the answer into a flashcard deck and study it your way.

Quiz

Generate a quiz on the same material and test yourself.

Analysis

Get AI performance feedback that pinpoints your weak topics.

Revise

Aeva schedules spaced-repetition reviews so each topic comes back right before you'd forget it.

Keep the streak

Check in with a quick confidence rating, watch your memory strength climb, and build a daily streak.

What is an AI study assistant?

An AI study assistant is a learning tool that uses artificial intelligence to answer questions, explain concepts, and create practice material from your own study resources. Instead of juggling a chatbot, a quiz maker, and a flashcard app, you study in one connected place.

StudyAssistant is a free AI study assistant built for students. Its AI study buddy, Aeva, answers with live web search and cited sources, reads the PDFs and notes you upload, and turns any answer or document into quizzes, flashcards, and study plans — then tracks your performance and schedules spaced-repetition revision so you review the right topic at the right time.

  • Homework help: ask any question and get a clear, step-by-step explanation with cited sources.
  • Chat with your PDFs: upload notes, textbooks, and slides, then ask questions — answers cite the exact page.
  • AI quiz generator: turn any topic or document into a practice quiz with instant grading and feedback.
  • AI flashcards: auto-generate decks from your material and track your mastery over time.
  • Exam preparation: build study plans, test yourself, and see exactly what to revise before the exam.
  • Notes and summaries: write real markdown notes, save any AI answer as a note, refine it, and export or share it.
  • Spaced-repetition revision: Aeva tracks memory strength for every topic and schedules reviews right before you'd forget — with a reason for every recommendation.
  • Study spaces: organize chats, notes, quizzes, flashcards, and files into per-subject workspaces with their own progress tracking.

Frequently asked questions

An AI study assistant is a tool that uses artificial intelligence to answer questions, explain concepts, and create practice material from your own study resources. StudyAssistant combines an AI chat, PDF chat, quiz generator, flashcards, spaced-repetition revision, and learning analytics in one free app for students.

Yes. StudyAssistant is free to start — sign in with Google and begin chatting, uploading notes and PDFs, and generating quizzes and flashcards right away.

Yes. Upload PDFs, notes, and images and chat with them directly. Aeva, StudyAssistant's AI study buddy, retrieves the exact pages that answer your question and cites them, so you can jump straight to the source in your own material.

Yes. StudyAssistant's AI quiz generator turns any uploaded PDF, note, or chat answer into a practice quiz. Pick the topic, difficulty, and question types; the quiz is graded instantly and you get AI feedback on what to revise.

Yes. StudyAssistant supports multiple-choice (single and multi-select) and true/false questions. Choose the format and difficulty, and the AI builds an MCQ quiz from your material, scores your attempt, and explains the answers.

Yes. StudyAssistant auto-generates flashcard decks from responses, documents, or quizzes. Flip and shuffle cards, rate each one Easy, Medium, Hard, or Needs Revision, and track your mastery over time.

Yes. Ask Aeva to summarize a chapter, lecture slides, or a whole document and it produces revision-ready notes with page citations — useful for condensing long readings before an exam.

Yes. StudyAssistant supports the full exam-prep loop: ask questions, summarize material, generate practice quizzes and flashcards, and review AI performance analysis that shows exactly which topics need more revision.

Yes. AI Revision Mode tracks a memory-strength score for every topic you study and schedules reviews just before you're likely to forget. Your revision dashboard shows what needs immediate revision, what's due today, and what you've recently mastered — each with a reason, like “You scored 58% on this 3 days ago” — and one tap starts a revision session, quiz, or flashcard review. After each session, a quick confidence check-in reschedules the topic.

Yes. An optional learning profile — your education level, preferred language, and explanation style — personalizes every answer, so explanations match how you actually study.

Any subject. Students use StudyAssistant for biology, calculus, physics, chemistry, history, economics, literature, computer science, and more — it works from your own material, so it covers whatever you're studying.

Yes. Study Spaces are per-subject workspaces that keep your chats, notes, quizzes, flashcards, and files together. Each space tracks its own progress and weak topics, so you always know where you stand in every subject.

Yes. StudyAssistant creates public links for quizzes, quiz results, and notes. Friends can attempt a shared quiz without creating an account, so it works for group revision and comparing results.

Yes. Your sessions, uploads, quizzes, and flashcards are tied to your account and only accessible to you. Read the privacy policy for details on how data is handled.

More than an AI chatbot — a complete AI learning system.

Homework help, PDF chat, quizzes, flashcards, study spaces — and spaced-repetition revision that tells you exactly what to review next. Start free with Aeva today.