Every few weeks a student messages me the same question: "Sir, which AI tool should I use? Everything is paid now." I understand the frustration. Half the tools you see on YouTube want a credit card, and most students in Pakistan don't have one, or don't want to spend $20 a month on something they'll use twice.
So I sat down and went through the tools I actually recommend to the students I teach. Every tool below has a free tier that is good enough for real study work, not just a 7-day trial. I've also added a few honest warnings, because AI can hurt your grades as easily as it can help them.
1. ChatGPT (free plan)
Still the easiest starting point. The free plan gives you a capable model, image understanding and file uploads with a daily limit. For a student, that limit is rarely a problem.
Where it shines: explaining a concept three different ways until one clicks, turning your messy lecture notes into a clean summary, and generating practice questions before a test.
My tip: don't ask it to "write my assignment". Ask it to "quiz me on chapter 4 of my physics book, one question at a time, and tell me where I went wrong." You'll learn more and you won't get caught for plagiarism.
2. Claude (free plan)
Claude is what I personally use most. It handles long documents very well, which matters when you want to paste an entire 40-page PDF and ask questions about it. The writing style is also more natural, so when you ask it to improve your English, the result doesn't sound robotic.
Students preparing for IELTS or writing university applications tell me it gives better feedback on essays than ChatGPT. Try both and see which one you like.
3. Google Gemini and NotebookLM
If you have a Gmail account, you already have Gemini. The free version is solid and it connects to Google Docs and Drive, which is convenient if your class notes already live there.
NotebookLM is the hidden gem here. You upload your sources (PDFs, slides, YouTube links, websites) and it answers only from those sources. It can also turn your notes into an audio discussion that sounds like a podcast. For revision before exams, this is the best free tool I've seen. Upload your whole course, ask "what are the ten most likely exam topics?", and listen to the summary while commuting.
4. Perplexity
Think of it as Google plus a research assistant. You ask a question, it searches the web, and gives you an answer with sources listed. For research papers and assignments where you need citations, this saves hours. Always open the sources and read them yourself though. AI tools still make mistakes, and your teacher will check.
5. Grammarly (free)
Not glamorous, but it quietly fixes the spelling and grammar mistakes that lose you marks. Install the browser extension and it works inside Gmail, Google Docs and your LMS. The free tier covers the basics, which is all most students need.
6. GitHub Copilot and Codeium for programming students
If you're in a computer science programme, GitHub offers Copilot free to verified students through the GitHub Student Developer Pack. You'll need your university email. The pack also includes free hosting credits, domains and other tools that would otherwise cost hundreds of dollars.
If you can't get verified, Codeium is a free alternative that works in VS Code. One warning from someone who has taught programming for years: use these to understand code, not to skip learning it. In an interview, nobody cares what Copilot can do; they care what you can do.
7. Canva with Magic Studio
For presentations, posters and assignment covers. The free plan includes a limited number of AI features like Magic Write and background removal. It's enough for a semester's worth of slides. Pakistani students with a .edu.pk email can often get Canva for Education free, which unlocks everything.
8. Microsoft Copilot
Available free in Edge and on the web. It's worth mentioning because many universities in Pakistan run on Microsoft 365, and if yours does, you may already have Copilot features inside Word and PowerPoint without knowing it. Ask your IT department.
9. Otter.ai or Google Recorder for lectures
Otter's free plan transcribes a few hundred minutes a month. Record your lecture (with permission), get the text, then paste it into Claude or NotebookLM for a summary. Android users can try the built-in Google Recorder app on Pixel phones, which transcribes offline.
10. Khanmigo and free course platforms
Khan Academy's AI tutor is free for learners in many regions and it's designed not to give you the answer, but to walk you to it. Pair it with free courses from Coursera (audit mode), freeCodeCamp and Harvard's CS50 and you have a better education than many paid institutes offer.
What to avoid
- "Unlimited free GPT" apps on the Play Store. Most are wrappers full of ads, and some harvest your data. Stick to official apps.
- Humanizer tools that promise to beat plagiarism checkers. They produce weak writing and many universities now flag them anyway. Write it yourself, then use AI to improve it.
- Paying for a tool before you've used the free version for a month. You'll usually find the free tier is enough.
A simple study workflow that works
- Record or collect your lecture material.
- Upload it to NotebookLM and generate a summary and quiz.
- Use Claude or ChatGPT to explain anything you didn't understand.
- Write your assignment yourself, then run it through Grammarly and ask an AI for feedback on structure.
- Before exams, listen to the NotebookLM audio summary and redo the quiz.
Students who follow this don't just finish faster; they actually remember the material. That's the whole point.
If you're starting a career in IT, you might also like my earlier post on career counselling for IT students, and the tutorials section has step-by-step guides for beginners.
Which tool did I miss? Tell me in the comments and I'll test it.
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