Chaitanya Sharmaai & full-stack dev
Case study · Gurukin

Gurukin: an AI learning platform built by one developer

Gurukin (gurukin.app) is a free, ad-free learning platform that I created and develop alone. It uses AI to draft content and people to review and fact-check it, and it is built so learners can get started with as little friction as possible.

100%Job Success on Upwork
4.8★average client rating
13+businesses · 4 countries
896/1000Claude Certified Developer

A content pipeline that keeps humans in charge

Learning content has to be right, and language models sound confident even when they are wrong. So every piece of Gurukin content starts as an AI draft and is then reviewed and fact-checked by a person before learners see it. AI provides the speed to cover a whole exam blueprint or a 100-day language course; human review provides the accuracy learners rely on.

Claude Certified Developer – Foundations prep

I hold this Anthropic credential myself (896/1000), and the prep track reflects what the exam asks for. It has six chapters, about 33 hours of study weighted to the exam blueprint, and 758 practice questions. Every sitting generates a fresh 53-item mock exam, so repeat attempts test understanding rather than memory, and the study plan reshapes itself to the time you have.

JLPT N5 Japanese, no account needed

The JLPT N5 course is a 100-day roadmap covering 105 kanji, 819 words and 131 grammar points. Progress saves in the browser, so there is no sign-up form, no password and no personal data to hand over before the first lesson. That keeps the product simple: open the page and start learning.

A kids’ track, child-safe by design

Now in development, the kids’ track has daily missions, adaptive difficulty and a parent dashboard, aligned to CBSE/NCERT in India and Common Core in the US. It is child-safe by design: there is no open chatbot, and every lesson comes from approved, human-reviewed curriculum. AI helps produce the material, but children never chat freely with a model.

Rates from $20/hour

Hourly for open-ended work, fixed price for defined projects. The first call is free and there's no obligation.

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Frequently asked questions

Is Gurukin free?

Yes. Gurukin is free and ad-free. The Claude certification prep and the JLPT N5 course are available now, and the kids’ track is in development. The JLPT course needs no account; progress is saved in your browser.

How do you stop AI-generated learning content from being wrong?

By never publishing it unreviewed. AI drafts the content, and a person reviews and fact-checks every piece before it goes live. For the kids’ track, lessons come only from approved, human-reviewed curriculum, and there is no open chatbot.

Can you build an AI learning platform for my organisation?

Yes. Gurukin shows what I would bring: an AI-drafted, human-reviewed content pipeline, study plans that adapt to the learner’s time, mock-exam generation and child-safe design. Rates start from $20/hour, with fixed-price quotes for defined projects.