School pilot live across Lahore · Karachi · Islamabad · MultanBring it to yours5,421 PCTB definitions mapped chapter-by-chapter across 33 books34,000+ MCQs reviewed by working Pakistani teachersWorks fully offline — built for prepaid data and load-sheddingNow live on Google Play — closed beta testing in progress100+ schools in the pilot — apply to bring Calibre to yoursApplySmart Tools per subject · Coach · Mistake Tracker · all rupee-pricedBuilt in Pakistan, for every Pakistani studentSchool pilot live across Lahore · Karachi · Islamabad · MultanBring it to yours5,421 PCTB definitions mapped chapter-by-chapter across 33 books34,000+ MCQs reviewed by working Pakistani teachersWorks fully offline — built for prepaid data and load-sheddingNow live on Google Play — closed beta testing in progress100+ schools in the pilot — apply to bring Calibre to yoursApplySmart Tools per subject · Coach · Mistake Tracker · all rupee-pricedBuilt in Pakistan, for every Pakistani student
Inside Calibre · For students

Calibre AI Tutor. Your private 24/7 tutor.

Trained on the full Pakistani syllabus — Class 9 to 12, MDCAT, and ECAT. Ask any concept, derivation, MCQ explanation, or study plan, in English or Urdu, anytime, on any device.

113,000+
Syllabus chunks indexed
24 / 7
Always online to help
2 langs
English + Urdu Nastaliq
90 days
Chat history retention
What it does

A real tutor — not just a chatbot.

Calibre AI Tutor isn't a general AI bolted onto a study app. It is trained on Calibre's own indexed syllabus, scope-locked to your exam, and built to teach the Pakistani way.

Concept explanations

Ask "explain photosynthesis light reaction" or "what is mitosis" and get a clear, syllabus-aligned answer with key terms highlighted. Plain prose — no walls of text, no padding.

Derivations and proofs

Step-by-step derivations the way a PCTB textbook would write them. Newton's second law from momentum, quadratic formula from completing the square, Snell's law from refraction — line by line.

MCQ + question solving

Paste an MCQ or short question and the tutor walks through how to think about it. It teaches the concept behind the option, not just the letter — so you can solve the next one yourself.

English or Urdu

Default English — clear and simple. Write your question in Urdu Nastaliq and the reply switches to Urdu Nastaliq. Never Roman Urdu, never Hinglish.

Voice input

Tap the mic and speak your question — Calibre transcribes it instantly. Great for math problems you would rather say than type, or for students more comfortable in voice than text.

Read aloud

Every answer can be played back as audio. Listen on the bus, while exercising, or when your eyes need a break. English and Urdu both supported.

Calibre AI Tutor in action — Pakistani student asking a chemistry question
Why it actually helps

Because it is trained on your syllabus.

General AI tools answer from the open internet — they don't know your PCTB chapter, your MDCAT past paper, or your ECAT formula sheet. Calibre AI Tutor pulls answers from a vector-indexed library of Calibre's own content. The result: answers that match what your textbook says, not generic web summaries.

  • Pulls from 113,000+ indexed pieces of Calibre content — chapters, MCQs, definitions, formulas, smart compares.
  • Strict scope guard — refuses sports, movies, jokes, off-topic. Keeps every conversation about your studies.
  • Identity-locked — never tells students it is GPT or any external brand. Always Calibre.
  • Strict reply length — 120–150 words by default, 200–300 only when a derivation truly needs the space. Never wall-of-text.
Privacy and trust

Your chat. Your data.

Stored securely

Your conversations live in Calibre's own database, RLS-protected, only readable by you.

Auto-deleted at 90 days

Old chats are purged automatically every 90 days. You can delete any chat manually any time.

Full history sidebar

Every chat you start is saved and indexed — open the history tab and pick up any past conversation instantly.

Stuck on a concept right now?

Open Calibre, tap the AI Tutor tab, and ask. You will have an answer before you finish reading this sentence.