Learning that never needs wifi
Offline CBSE AI Tutor, Lifetime Free.
Download Now — MacSign in and the download starts · free forever · no card, ever
On Windows? Get the Windows version
CBSE Classes 6–10, current to the 2026-27 syllabus. Guru listens and teaches in English. Your child's questions never leave the laptop — nothing is sent to any server, ever.
families using Guru
What Guru takes from your laptop — measured, not estimated.
Most AI apps hide their requirements until after you download. Here they are first, in big letters.
8 GB or more gets the full-precision brain; 6 GB gets a lighter one — same tutor, same voice. On 4 GB, Guru refuses to install rather than crawl.
About 3.3 GB on the lighter one. Your browser and homework tabs still fit.
One download that survives interruptions and resumes where it stopped. No re-downloading on a metered connection.
The model lives sealed on your laptop — that's what "no internet, ever" physically looks like on a disk.
Apple silicon Mac · Windows 64-bit, early build · These numbers are why Guru works with the wifi off.
Why this page exists
India's first fully-offline AI tutor for the complete CBSE curriculum.
Classes 6–10. Every subject. Genuinely zero internet after setup — not "low bandwidth," none. The AI model lives sealed on your child's laptop, and it costs nothing at all — not now, not later. Others claim "offline"; we searched, in India and everywhere else, and found nobody who puts all of this together.
If you find one that does, write to us — we'll take this line down.
What Guru actually is — no adjectives, just facts.
Every one of these is something you can go verify yourself, on a laptop, with the wifi turned off.
No internet. Ever.
Not "low bandwidth" — none.
Guru downloads once, under 4 GB, and after that runs completely offline: on a train, in a village with no signal, on a laptop that has never seen wifi.
Nothing leaves the laptop.
The whole pitch, for a parent.
Every question and every answer stays on the device that asked it. No conversation is ever sent to a server.
Answers with a question.
The Socratic method, from the B.Ed microteaching framework.
Guru probes what the student already knows, hints, and asks the one question that lets her say the answer herself. It does not dump answers, and it never tells a curious child a question is "not in the syllabus."
NCERT replaced every class 9 textbook this year. Guru already teaches from the new ones.
Kaveri, Ganita Manjari, Science Exploration, Understanding Society — Guru's class 9 content is built from the books NCERT shipped for 2026-27, not the ones they replaced weeks earlier.
"My floor does not push me."
Watch what Guru does when a student pushes back: it concedes the true part of the objection, then asks — it doesn't lecture. A real testing session, lightly trimmed. A class 9 student was asking about friction, then pulled the thread somewhere physics teachers know well.
Student What is friction?
Guru Friction is a force that opposes motion when two surfaces are in contact. Think about sliding your hand across a rough table — that resistance is friction. Can you name an everyday example?
… several turns later, working through cars, tyres, and coefficient of friction …
Student Again you introduced a new term — what is normal force?
Guru Normal force is the support force a surface exerts on an object, perpendicular to that surface. Think of how the floor pushes up against your feet.
Student No — not at all. My floor does not push me.
Guru You are right that a hole would certainly cause us to fall — but consider a perfectly solid surface, like this table. What force stops you falling through it?
Student Okay, that is normal force.
Guru did not win the argument. It conceded the true part of the objection — a hole would mean falling — and asked the one question whose answer the student already had.
What Guru needs, and what it does not do
Limits stated plainly — burying them is how bad surprises happen.
What it needs
- 6 GB RAM or more — 8 GB+ gets the full-precision brain
- ~6 GB free disk space
- Apple silicon Mac, or Windows 10/11 64-bit (early build)
- One download, 4.1 GB (2.9 GB on smaller machines), resumes if interrupted
What it is
- CBSE only, Classes 6 to 10
- Current to the 2026-27 NCERT syllabus
- Listens in English
- Teaches and replies in English
What it is not
- Not ICSE or other boards — yet
- Not a subscription
- Not sending anything to a server
- Not a chatbot that hands over answers
Independence Day
Launched 15 August
Free for everyone, forever.
Guru launched on Independence Day, 15 August. There is no price, no trial, no subscription and no renewal: download it, and it is yours for as long as you have the laptop. Nothing to pay later, nothing to cancel.
Needs an Apple Silicon Mac (M1 or newer — Apple menu → About This Mac says Chip, not Processor) with 6 GB RAM or more. On Windows, use the button below. Intel Mac is still coming — leave your email below and we'll tell you the day it's ready.
You'll see a security warning on first open — that's expected.
Our Apple developer approval is still in review, so macOS will say it "could not verify Guru is free of malware." That's the standard message for any new app awaiting Apple's review — here's how to open it (one time only): click Done (not "Move to Bin"), then open System Settings → Privacy & Security, scroll down to "Guru" was blocked and click Open Anyway. On older macOS versions, right-clicking Guru in Applications and choosing Open also works.
Windows 10 or 11, 64-bit, 6 GB RAM (8 GB or more gets the full-precision brain) — same version and same tutor as the Mac build now. It runs on the processor, so replies come a little slower. Read the two steps below before you install.
On Windows: two things to expect.
1. "Windows protected your PC." Our
Windows build is not signed yet, so SmartScreen stops it
the first time. Click More info, then Run anyway. Nothing else changes.
2. Let Guru hear you. Windows blocks the
microphone for new apps silently — Guru will say it could
not hear anything. Open Settings → Privacy & security → Microphone and turn on both Microphone access and Let desktop apps access your microphone.
If your laptop has a mic-mute key with a light on it
(often F4), check that the light is off.
Tried Guru? Tell everyone how it went.
Comments appear immediately — good, bad, or bug report. We read every one, and the team replies right here.
Loading comments…
Guru, plainly answered
Is there an AI tutor for CBSE that works completely offline?
Yes — that is what Guru is. The installer is small (about 26 MB); after you sign in, Guru downloads its brain and voice once — about 4.1 GB, or 2.9 GB on smaller machines — and after that runs with no internet connection at all, not a weak one, none. It works on a train, in a village with no signal, or on a laptop that has never seen wifi. The download asks first, and it resumes if it is interrupted.
How much does Guru cost?
Nothing. Guru is free for everyone, forever — no price, no trial that expires, no subscription, and nothing to pay later. We build it because a good tutor should not depend on what a family can afford.
Is Guru still free?
Yes — permanently, not as a trial. Guru launched on Independence Day, 15 August 2026 and is free for everyone with no limit on how many people download it, no expiry date, and no payment at any later point.
What computer do I need to run an offline AI tutor like Guru?
6 GB of RAM or more (8 GB or more gets the full-precision brain), about 6 GB of free disk space, and either an Apple silicon Mac or a 64-bit Windows 10/11 laptop. Both are on the same version now. The Windows build is not signed yet, so Windows shows a SmartScreen warning the first time you run it, and you have to allow microphone access for desktop apps in Settings.
Which classes and boards does Guru cover?
CBSE only, Classes 6 to 10, current to the 2026-27 NCERT syllabus — including the books NCERT replaced this year (Kaveri, Ganita Manjari, Science Exploration, Understanding Society). Other boards are not supported yet.
Does Guru send my child's questions to a server?
No. Every question and every answer stays on the computer it runs on. Nothing about a lesson is uploaded anywhere.
Can Guru speak and understand Hindi?
Not yet. Guru listens in English and teaches in English. Speaking to it in Hindi will not work well in this version — Hindi is something we want to add, and it is not here yet.
Does Guru just give students the answers?
No — Guru teaches by asking. It uses the Socratic method from the B.Ed microteaching framework: it probes what the student already knows, gives hints, and asks the one question whose answer the student already has. It does not dump answers, and it never tells a curious child a question is 'not in the syllabus.'
Is Guru India's first offline AI tutor?
Guru is India's first fully-offline AI tutor covering the complete CBSE curriculum — Classes 6 to 10, every subject, with genuinely zero internet after setup, the AI model living entirely on your laptop, and no price at all. Others claim 'offline'; we could not find anyone, in India or anywhere, who puts all of this together.
Guru's voice uses Piper (CC BY). Questions? Write to hello@indiaschool.ai.