8 Best AI Study Tools for Students in 2026 (and What Each Is For)

The best AI study tools for quizzes, tutoring, lecture notes, maths and revision — what each one is good at, where it falls short, and how to combine them.

DeepRevision Team

Published 4 min read

A group of students studying together with a laptop at a café
Photo: Brooke Cagle / Unsplash

There's now an AI tool for almost every part of studying: making notes, explaining concepts, writing practice questions, transcribing lectures, solving maths. The hard part isn't finding one — it's knowing which tool is for which job, and using them in a way that actually helps you learn.

Below are eight AI study tools worth knowing, grouped by what they're best at.

A note on fairness: we make DeepRevision, and it's on the list. We've tried to describe every tool honestly, including where others are the better choice. AI tools change fast, so check each tool's current features and plans.

Quick comparison

ToolBest for
DeepRevisionPractice questions from your own material, mistake tracking, exam plans
NotebookLMAsking questions about your sources, with citations
ChatGPTGeneral explanations and tutoring on any topic
KnowtAI flashcards with a Quizlet-like feel
RemNoteAI flashcards inside your notes
QuizletLarge library of shared flashcard sets
Otter.aiTranscribing lectures and meetings
Wolfram|AlphaStep-by-step maths and science computation

1. DeepRevision — best for practice questions and exam prep

DeepRevision turns your notes, slides, PDFs, lectures and YouTube links into practice questions in six formats (multiple choice, true/false, fill in the blanks, matching, flashcards, image labelling), with every question linked to the page it came from. Questions are scheduled with FSRS spaced repetition, and every wrong answer is kept and labelled by error type.

Around that core:

Best for: students preparing for exams from their own course material. Limits: web and Android only.

2. NotebookLM — best for exploring your sources

Google's NotebookLM lets you upload sources — documents, slides, web pages — and ask questions about them, with answers that cite the passages they came from. It can also generate summaries and audio overviews.

Best for: research, reading-heavy courses, and making sense of many sources at once. Limits: it's built for exploring material more than for structured, long-term revision.

3. ChatGPT — best for explanations on anything

A general-purpose chatbot can explain almost any topic at any level, generate examples, and walk you through problems. OpenAI has added a study-focused mode that guides you with questions rather than handing over answers.

Best for: quick explanations, alternative examples, and checking your reasoning. Limits: it doesn't know your syllabus unless you give it your material, and it doesn't track what you've learned over time. Use it as a tutor, not a ghostwriter.

4. Knowt — best for AI flashcards with a familiar feel

Knowt turns notes, PDFs and videos into flashcards and notes with AI, with learn and practice-test modes. It's often recommended as a free Quizlet alternative.

Best for: students moving from Quizlet who want AI flashcards. Limits: less focus on mistake analysis and exam planning.

5. RemNote — best for flashcards inside your notes

RemNote is a note-taking app with flashcards and spaced repetition built in. AI features can generate cards from your notes and PDFs.

Best for: students who take detailed notes and want everything in one place. Limits: works best if you adopt its note-taking style.

6. Quizlet — best for shared flashcard sets

Quizlet has a huge library of flashcard sets made by other students and teachers, plus AI tools to turn notes into study sets.

Best for: standard subjects where good shared sets already exist. Limits: sets made by others may not match your course, and some study modes are on the paid plan. (See Quizlet alternatives.)

7. Otter.ai — best for lecture transcription

Otter.ai transcribes speech in real time and produces searchable transcripts and summaries.

Best for: getting an accurate transcript of a lecture or seminar. Limits: a transcript isn't revision on its own — you still need to turn it into questions. (See turning lectures into practice questions.)

8. Wolfram|Alpha — best for maths and science computation

Wolfram|Alpha computes answers to maths, science and engineering questions, with step-by-step solutions available.

Best for: checking calculations and seeing a method for standard problems. Limits: it's a calculator and solver, not a tutor for your course — and copying steps isn't the same as learning them.

How to combine them

You don't need all eight. A simple, effective stack:

  1. One tool to capture and organise your material (your notes, a transcript, your textbook PDF).
  2. One tool to turn it into practice and schedule review — this is where most learning happens.
  3. One tutor for explanations when you're stuck — ideally one that cites your sources.

Whatever you use, the rule is the same: let AI test you and explain your mistakes, not do your thinking. Research on AI in maths classrooms found that students who leaned on an unrestricted chatbot did worse on exams once it was taken away (Bastani et al., 2025).

Frequently asked questions

What is the best AI tool for studying?

It depends on the job. For turning your own material into practice questions with spaced repetition, use a dedicated study app like DeepRevision. For exploring and asking questions about your sources, NotebookLM is strong. For general explanations, a chatbot like ChatGPT works well.

Are AI study tools free?

Most have a free tier with limits, and paid plans for heavier use. Check each tool's current plans, because they change often.

Can AI study tools make mistakes?

Yes. AI can misread a source or state something wrong with confidence. Prefer tools that show where each answer came from, and check anything important against your notes or textbook.

Will using AI tools make me learn less?

It can if the AI does the thinking for you. Use AI to quiz you, give hints and explain what you got wrong — not to produce answers you then copy.

Stop studying everything. Study what you’re getting wrong.

DeepRevision turns your notes, slides and lectures into practice questions, finds the ones you keep missing and why, and brings each one back right before you’d forget it.

Written by

DeepRevision Team

The people who build DeepRevision

We build DeepRevision, a study app that turns your own notes, slides and lectures into practice questions and brings back the ones you get wrong right before you'd forget them. We write about the research behind how students remember, and how to use it before an exam.