You've got a midterm in nine days, three readings you haven't opened, and a bank balance that says "no new subscriptions." So you search for a free AI study app, click the first result, and hit a screen asking for your card number "to start your trial."
That's the problem this list is built around. Below are six AI study tools a college student can try, with a plain account of what each one says about pricing on its own site. Where a provider publishes its free-tier details, you'll get them. Where it doesn't, we say so and point you to the right place to confirm. We didn't fill in the gaps with guesses.
1. Coursity: the full AI tutor for 14 days, no credit card
Coursity is an AI tutor built from your own course materials. You upload your syllabus, slides, readings, and handouts, and the tutor answers from those files instead of from the open internet. Each answer is cited to the slide or page it came from, so you can check it against what your professor actually taught.
Coursity's pricing page lists the Free plan at $0/month and says "No credit card required." The landing page describes Free as a free start with the full AI tutor for 14 days, built for real university courses. Here's what the pricing page says Free includes:
- Up to 2 courses from your materials
- The full AI tutor for your first 14 days, then about 20 tutor replies a week
- Topic-level mastery tracking
- Inline drills and quizzes
- Automatic syllabus parsing
- SMS and email deadline reminders
A typical session goes like this. You upload a syllabus and a few lecture decks. Coursity parses the syllabus into topics and a schedule, and pulls out due dates. You ask the tutor something you're stuck on, and it answers with a citation back to your slides. Then it hands you a practice drill. Your topic-level mastery map updates based on how you do, and the evening before something is due, you get an email and SMS reminder. Those reminders are free on every plan.
That loop is the main reason Coursity sits first here. Plenty of tools can explain a concept. Fewer track what you've mastered topic by topic, and fewer still read your syllabus to tell you what's due.
Some practical notes:
- Coursity is a web app with a Chrome extension for importing course content, so plan on studying from a browser.
- It has import adapters for Canvas, Moodle, Blackboard, Brightspace, Google Classroom, Schoology, and itslearning.
- It accepts PDF, PPTX, DOCX, CSV, TXT, MD, photos, and scanned files with OCR.
- Paid plans exist: Plus at $9.99/month or $39 per semester, and Pro at $19.99/month or $79 per semester. You don't need one to use the Free plan described above.
Best for: students who want a free AI tutor for college courses grounded in their own slides and readings, with mastery tracking and deadline reminders in the same place.
2. Khanmigo: check which plan fits you before you sign up
Khanmigo is the AI tutoring assistant from the Khan Academy ecosystem. Its pricing page is short, and the headline says it all: "Free for teachers, $4/month for parents & learners."
So if you're searching "Khanmigo pricing free for teachers," you've found the right line, but you're probably not the person it covers. The free tier is for teachers. The learner plan is listed at $4/month, which isn't $0.
The pricing page is thin on detail. It doesn't walk through what a learner plan includes, and it doesn't say whether college students have another way in for free. It also doesn't say whether a card is needed to sign up. If you're considering Khanmigo, check the access route for your situation on khanmigo.ai before you assume anything.
Best for: learners and parents who are fine with a small monthly fee, and teachers who qualify for the free tier.
3. Quizlet AI study tools: practice tests, study guides, and flashcards
Quizlet is a familiar name for flashcards, and its AI study tools page lists a wider set of features. They include practice tests, study guides, a flashcard maker, an AI PDF summarizer, and AI homework help. If you're hunting for Quizlet AI practice tests specifically, that's where they live.
The catch for this list is that the AI tools page doesn't publish pricing or free-tier limits. It doesn't state whether a credit card is required, either. We won't guess. Before you build your study routine around Quizlet's AI features, open its pricing page and confirm which of them your account can use for free.
Best for: students who already think in flashcards and want practice tests generated from their notes, once they've confirmed what's free.
4. Gemini Notebook (NotebookLM): source-grounded studying from your own files
Google's education page for Gemini Notebook, also known as NotebookLM, pitches a source-grounded assistant. You add your own sources, and the tool works from those. The page lists Audio and Video Overviews, mind maps, quizzes and study guides, and chat with citations.
For studying, that means you can feed in lecture notes or readings and get a study guide, a quiz, or a spoken overview back. It's a similar idea to Coursity's: answers tied to material you supplied.
Google's page leans institutional. It talks about teaching, learning, and working, and it doesn't lay out free-tier caps or a "no credit card" statement for individual students. So we won't quote limits. Check Google's current plan and help pages for what your account gets. Also note that the feature list doesn't mention mastery tracking or syllabus-based deadline reminders.
Best for: students who want audio overviews, mind maps, and study guides generated from their own sources.
5. ChatGPT: flexible for explanations and practice, so verify the free limits
ChatGPT is the AI most students have already tried. Free-tier caps and features change often, so read OpenAI's own plan and help pages before you rely on any particular feature being free.
What you can say safely is how students tend to use a general chatbot:
- Ask for a concept explained at a different level, then ask again if it didn't land.
- Paste in a problem and ask for step-by-step reasoning.
- Request practice questions on a topic, then answer them and ask for feedback.
- Use it as a free AI homework helper, with the caveat that you should check answers against your course materials.
The trade-off is that a general chatbot doesn't know your syllabus unless you paste it in each time. It won't keep a mastery map or send you a reminder before something's due. If you upload files, confirm whether that's available on the free plan.
Best for: quick, flexible explanations on almost any topic.
6. Claude: another chat-style option, with the free details left to confirm
Claude, from Anthropic, works similarly for study help. We haven't verified its current free-tier details, including file uploads and usage limits, so check Anthropic's pricing and help pages.
Students commonly reach for it to clarify a dense paragraph, rewrite messy notes into something readable, or generate prompts for self-quizzing. Like ChatGPT, it's a general assistant. It's useful, but organizing your semester and tracking what you've mastered is on you.
Best for: students who like conversational help with notes and concepts and are happy to manage their own study plan.
Which free AI study app should you pick?
Here's a quick way to match the tool to your situation:
- Want a course-material-based AI tutor with mastery tracking, drills, and reminders? Start with Coursity.
- Want audio overviews, mind maps, and study guides built from your sources? Try Gemini Notebook.
- Think best in flashcards and practice tests? Look at Quizlet, and confirm what's free first.
- Just need a flexible chatbot for explanations? ChatGPT or Claude can fill that role.
- Are you a teacher? Khanmigo's pricing page lists a free tier for you.
Most students end up combining tools. The trade-off to keep in mind is that general chatbots do many things, but a study loop that's grounded in your course files and tracks your progress is less common.
How to avoid a surprise charge on a "free" study app
A few habits will keep you from handing over a card by accident:
- Look for the words "no credit card required" on the plan itself. If the pricing page doesn't say it, don't assume it.
- Be wary of "start your free trial" buttons. A trial often means a card on file, and a free plan doesn't.
- Check that the free tier includes what you need: file uploads, quizzes, and reminders, not just a chat box.
- Read the limits. If a page doesn't state them, look for a help or pricing page that does.
- Do a test run with one course before you commit a whole semester to a tool.
Coursity passes the first check directly. Its Free plan says "No credit card required" and includes the full AI tutor for 14 days, then about 20 replies a week, for up to 2 courses.
Start with the one that builds a study system from your syllabus
A free plan only matters if it helps you study. Any chatbot can explain a concept once. A system that reads your syllabus, answers from your slides, quizzes you, tracks what you've actually mastered, and reminds you before a deadline is what keeps you ahead across several classes.
That's what Coursity's Free plan covers, and it doesn't ask for a card. Start Coursity free at coursity.ai, no credit card.