Best AI Tools for Students in 2026 (Free Plans Checked)

Every free-plan detail below was read off the vendor’s own page in a desktop browser on 24 September 2026. Two of these eleven tools we have also used by hand, and three surfaces we have network-tested ourselves. Which is which, exactly.

Start here: the shortest stack that actually works

What changed since we last checked this page

This page was last verified in July 2026. Going back to all eleven vendors on 24 September 2026 turned up five things that had moved, two of which would have sent you to the wrong place entirely. We are listing them because a guide that quietly edits itself is a guide you cannot date.

What “free” actually gets you in 2026

“Free” is doing a lot of work in most student tool lists, and it hides three completely different things. Knowing which one you are looking at saves you the specific disappointment of getting halfway through a revision session and hitting a wall.

• A real free plan that does not expire. ChatGPT, Gemini, Claude, Perplexity, Elicit, Grammarly, Gemini Notebook and Notion all have one. You can use them for a full degree without paying.
• A free plan with the useful bit removed. This is the one that catches people. Wolfram Alpha’s Basic account is free and its own pricing page says in as many words that it does not include step-by-step solutions, which is the entire reason a student opens Wolfram Alpha. Photomath’s free Basic tier keeps step-by-step explanations but strikes through the visual aids and the extra “how and why” tips. Notion’s free plan gives you a trial of Notion AI, not Notion AI.
• Not free at all, whatever the homepage suggests. Khanmigo for learners is $4 a month or $44 a year, and only if you are in the United States.

Pick by the job you are trying to do

Six jobs cover nearly everything a student asks an AI to do. Find yours, use the tool named there, and ignore the rest of this section.

1. You do not understand a concept

Any of the three general assistants does this well, and this is the job where a free plan is genuinely enough. The difference is not the tool, it is the prompt. Asking “explain X” gets you a textbook paragraph you will forget. Asking it to explain, then quiz you, then mark your answer, is the version that sticks.

• ChatGPT has a feature built for exactly this. Study mode makes it guide you with questions instead of handing over the answer. OpenAI’s help page states it is available “across ChatGPT plans globally”, so it is on the free plan too. Turn it on by typing @study in the message box on the web, or the + menu on iOS and Android. It will not work inside Projects, GPTs or Temporary Chats.
• Google Gemini is the one to pick if your course already runs on Google Docs and Drive. The free tier includes Gemini Live, so you can talk through a concept out loud, which is a better revision technique than most people expect.
• Claude tends to produce longer, more patient explanations and handles a long document in one go. Free gives you Sonnet and Haiku, web search, file uploads and up to five Projects. Opus is Pro only.

2. Studying, homework and practice questions

This is the job most student searches are really about, and it is not the same as job one. You do not want an explanation, you want to be tested, repeatedly, on the specific material in front of you.

• Gemini Notebook, formerly NotebookLM, is the strongest free option here and it is the one most students have not tried. You upload your own lecture slides, PDFs and notes, and every answer it gives is grounded in those sources rather than in whatever it learned from the internet. It generates flashcards and audio overviews from your own material. The free tier allows up to 50 sources per notebook, which is a whole module’s worth.
• Any general assistant, used as a quizmaster. Paste your notes, ask for twenty short-answer questions with the answers hidden until you ask, and work through them. This is free, unlimited on all three assistants, and better revision than re-reading.
• Khan Academy itself is free worldwide and remains excellent for structured practice in maths and science. Its AI tutor Khanmigo is a separate thing with its own wall, covered below.

Picking tools is the easy part. Fitting revision into a week that already has classes in it is what actually goes wrong. Tell the planner below your goal, your deadline and the hours you genuinely have, and it will turn a syllabus into a week-by-week schedule instead of a wish.

3. Research you will have to cite

The moment your work gets graded on its sources, a general assistant stops being the right tool. Use something that shows you where the claim came from.

• Perplexity puts source links next to every answer, including on the free plan. Its pricing page describes the free tier as good for “limited daily usage” and marks web answers, file uploads and asset generation as “Limited” without publishing a daily number, so we are not going to invent one for you. Expect to run out on a heavy research day.
• Elicit is the specialist, and its free Basic plan is more generous than it looks: unlimited search across more than 138 million papers, unlimited summaries, and unlimited chat with papers you have full-text access to. What is limited on free is its Research Agent and Research Reports. If you are writing a literature review, this is the free tool to learn.

4. Improving writing you have already done

Note the wording. This is the job where the line between help and misconduct is thinnest, so it is worth being precise about which side of it you are on. Fixing your own sentences is editing. Generating the sentences is something else, and your institution may well call it something else too.

• Grammarly‘s free plan covers spelling, grammar and tone, plus 100 AI prompts a month. It works inside Word, Outlook, PowerPoint and Teams on Windows and Mac, which is why it is still the default: it meets you in the document you are already writing. The plagiarism checker, the AI detector and the unlimited suggestions are all Pro at $12 a month. As of 24 September 2026, Grammarly’s own students page advertises no student discount.

We have a separate, longer guide comparing the free writing tools properly, including the ones that are better than Grammarly at specific jobs: the best free AI writing tools, with every free plan re-checked. If writing is your weak point rather than a passing task, start there instead of here.

5. Maths and STEM

This is the job where the free tiers are most deliberately shaped, so read the limit before you rely on the tool the night before a problem set is due.

• Wolfram Alpha will compute almost anything. Its free Basic account, which needs a sign-in, explicitly does not include step-by-step solutions. Wolfram says so on its own student pricing page. Since the steps are the part you are trying to learn, treat free Wolfram Alpha as a way to check an answer you already worked out, not a way to work it out. Pro for Students is $5 a month billed as $60 a year.
• Photomath is the opposite shape: its free Basic tier keeps step-by-step explanations and strikes through the custom visual aids and the extra “how and why” tips. So the free version does show you the method. It is a phone app only, iOS and Android, so it is a homework tool rather than an exam-prep tool. Paid is $9.99 a month or $69.99 a year.
• A general assistant, with care. They are far better at arithmetic than they were, and still wrong often enough that you must check. If you cannot verify the answer yourself, you are not learning, you are gambling.

6. Organising notes and study material

• Gemini Notebook again, because this is genuinely two jobs in one tool. Upload the mess, get summaries, a study guide and flashcards back, all grounded in your own material.
• Notion for the organising itself: notes, deadlines, reading lists, group projects. Be clear about what the free plan includes, though. Notion’s own pricing page lists “Trial of Notion AI” on both the Free plan and the $10 Plus plan, so do not build a workflow around Notion AI and expect it to keep working. Notion’s Education Plus offer is the genuinely valuable part and is covered in the next section.

If your problem is the calendar rather than the notes, that is a different category of app and we have a separate guide: the best time management and to-do list apps for students.

The eleven tools, with the actual limits

Every cell in the “free plan” column below is a specific thing the vendor publishes, not the word “Yes”. Scroll the table sideways on a phone.

Student offers, and who can actually claim them

This is the part that gets copied between blog posts without anyone reading the eligibility text. Several of the biggest student offers in AI right now are restricted to one country, and if you are not in it, the offer does not exist for you no matter how many lists say “free for students”.

When a general assistant is enough, and when it is not

Most students need fewer tools than they think. The honest test is whether the specialist does something the assistant structurally cannot.

• The assistant is enough for explaining, outlining, quizzing you, simplifying a dense paragraph, brainstorming, and turning your notes into practice questions. Adding a second tool for any of these buys you nothing.
• A specialist earns its place when the answer must be traceable (Perplexity, Elicit), when the answer must be computed rather than predicted (Wolfram Alpha), when the material has to stay inside your own documents (Gemini Notebook), or when the help has to appear inside the app you are already typing in (Grammarly).
• The tie-breaker is grounding. A general assistant answers from everything it has ever seen. Gemini Notebook answers only from the eleven PDFs you gave it. For revision, the second is usually what you want, because being confidently told something that is not in your syllabus is worse than being told nothing.

What we watched one of these tools do with a document

Students paste more private material into AI tools than almost anyone: unmarked coursework, a dissertation nobody has read yet, sometimes a medical note explaining an extension. So it is worth saying what we have actually measured, rather than what we assume.

In September 2026 we ran a network capture on three surfaces and published the whole method. The finding that matters most to a student is this one, and we are going to keep it inside the box it was measured in:

The other nine tools on this page have not been network-tested by TwistyApps. That is not a clean bill of health and it is not an accusation. It means we do not know, and saying so is more useful to you than a confident paragraph would be. If you want to reason about a specific document before you paste it, our AI Privacy Risk Checker walks you through what is actually in it, and our longer guide covers whether your data is safe with AI tools.

When the answer is wrong, and it will be

Every tool on this page can produce a confident, well-formatted, completely incorrect answer, and the free tiers are not worse at this than the paid ones. The skill that separates students who get value from AI from students who get caught out is not prompting. It is checking.

The checks that actually catch errors are boring and specific: does the cited source exist, does it say what the summary claims, is the number in the right units, can you reproduce the middle step yourself, and does the conclusion survive if you ask the same question a different way. Work through them on the answer you are about to hand in.

If you would rather read the reasoning behind each check first, our guide on how to check AI answers before you trust them goes through them one at a time. And if your results are inconsistent enough that you are not sure whether the tool or the prompt is at fault, learning a few prompting basics costs nothing and fixes more than switching tools does.

Using AI without breaking your course rules

Using AI is not automatically cheating. Using it in a way your course forbids is, and the rules genuinely differ between institutions, between departments and sometimes between two modules taught in the same term. Nothing below is a ruling on your situation, because we cannot see your handbook.

• Read your own policy before you read another tool list. It is the only document that decides this. If it is ambiguous, ask the person marking the work, in writing, and keep the reply.
• Keep the line at generation. Explaining, quizzing, outlining, checking grammar on your own draft and generating practice problems sit comfortably inside most policies. Submitting text a tool wrote does not. Where a policy is vague, that is usually the line it is vague about.
• Disclose when you are asked to. Plenty of courses now permit AI on condition that you describe how you used it. That is a straightforward deal and hiding it turns a permitted workflow into a punishable one.
• Do not plan around detectors. AI detection is unreliable in both directions, which means it can miss AI text and it can flag your own writing. We have never tested how any institution’s detector behaves and we are not going to imply otherwise. Our guide on whether AI content can be detected explains why the whole category is shakier than either side claims.
• Use the explain-it-back test. If you cannot explain your submitted answer out loud, without the tool open, you have not learned it, and that is a problem long before anyone accuses you of anything.

The five mistakes that cost students the most

• Trusting the first answer. Invented citations are the classic one, and they look exactly like real ones until you click.
• Collecting tools instead of using one. Six logins and no habit beats nothing, but only just. Start with one assistant and add the second only when it fails you at something specific.
• Assuming the free tier includes the bit you need. Wolfram Alpha without step-by-step solutions is the cleanest example on this page.
• Pasting things you would not email. Unpublished work, other people’s personal details, anything under an NDA from a placement.
• Letting the tool do the thinking. The students who benefit most use AI to get to the point where they can do the work themselves faster, not to skip it.

Final recommendation

How we checked this page

Three different kinds of evidence sit behind this guide and they are not equally strong, so here is which is which. Knowing the difference is the point.

FAQ

Sources and references

Every page below was read in a desktop browser on 24 September 2026. Free-plan limits, student offers and country eligibility change often, so confirm on the vendor’s own page before relying on any of it.

• ChatGPT plans, the ChatGPT Free Tier FAQ, Using study mode in ChatGPT and the ChatGPT student offer (OpenAI)
• Google Gemini plans and Gemini for Students
• Claude pricing and plan comparison (Anthropic)
• Gemini Notebook, its plans page, and Google’s announcement that NotebookLM is becoming Gemini Notebook
• Perplexity pricing
• Elicit pricing
• Grammarly plans and Grammarly for Students
• Photomath plans
• Wolfram Alpha Pro for Students pricing
• Notion for Education and Notion pricing
• Khanmigo for learners (Khan Academy)
• Our own network capture: what free AI writing tools do with your text, including the full method and the things we could not observe

Related reading

• Best free AI writing tools, with every free plan re-checked
• What free AI writing tools actually do with your text
• How to check AI answers before you trust them
• Best AI tools for beginners in 2026
• Learn AI in 30 days: a beginner training plan
• How to learn prompting for free
• Best time management and to do list apps for students
• How online apps can help students prepare for entrance exams
• What students should focus on now to get hired in 2027
• Is my data safe with AI tools?
• Can AI content be detected?

Written by Muhammad Adnan, editor of TwistyApps, who ran the network captures behind the privacy section himself and has spent seventeen years building and running software.