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

Content Library Search. Find anything, fast.

One search box across every chapter section, MCQ, short and long question, definition, formula, and past-paper item in the Pakistani syllabus. Type one or two keywords — Calibre pulls the best matches instantly.

photosynthesis chlorophyllFOUND 12
  • CHAPTER
    Bio XI · Bioenergetics · §6.1
    Section 6.1.1 Photosynthetic Pigments — chlorophyll a, chlorophyll b, carotenoids and their absorption spectra…
  • MCQ
    MDCAT Biology · Bank 2
    Q: Cyanobacteria such as Anabaena and Nostoc are unique because they perform oxygenic photosynthesis using…
  • CHAPTER
    Bio IX · Bioenergetics · §8.2
    Section 8.2 Photosynthesis — Autotrophic organisms — plants and certain bacteria — manufacture their own food…
  • MCQ
    FSc XI Bio · Chapter 6
    Q: Which organelle is the site of the light reactions of photosynthesis? Options: A) Mitochondria B) Chloroplast…
  • DEFINITION
    Bio XI · Key terms
    Chlorophyll — green pigment found in the thylakoid membrane of chloroplasts; absorbs light energy for photosynthesis.

Real search results from the Calibre content library — chapter sections, MCQs, and definitions ranked by relevance.

40,000+
Searchable items
430+
Chapter sections
5,400+
Definitions
6
Levels covered
What it searches

Every kind of content, indexed.

Calibre's search is not just over MCQ titles. It is a full-text index over the entire body of every type of content the app holds — so a single keyword can pull a definition, a chapter section, and a past paper question all in one go.

Chapter sections

Every titled section of every PCTB / FBISE textbook chapter — Class 9, 10, FSc XI, FSc XII. Summary, key terms, key facts.

MCQ banks

Tens of thousands of textbook MCQs, practice MCQs, higher-difficulty MCQs, and MDCAT/ECAT specialised banks. Includes the correct option and explanation in the result.

Short + long questions

Subjective questions from every chapter with the model answer indexed — so a keyword search returns the question AND the answer in one hit.

Definitions

Every key term defined across the curriculum — biology, chemistry, physics, math, English, Islamiat. Tap to see the definition and the chapter it belongs to.

Formulas

Every formula in Calibre's Formula Hub — name, equation, variables, when to use. MDCAT and ECAT subjects covered.

Past papers

Solved past-paper items year-by-year and chapter-by-chapter. Search by topic and surface the years it appeared in.

Why it actually helps

Built for the way Pakistani students actually study.

Most study apps make you click through three menus to reach a chapter. Calibre lets you type the topic name once and jump straight to the right place — whether that is a textbook section, a definition, an MCQ from last year's paper, or a formula sheet.

  • Ranked by relevance — the section that mentions the topic four times comes before the one that mentions it once.
  • Scoped to your class and exam — a Pre-Eng XI student never sees Pre-Med Biology in their results.
  • Bilingual stems — searches both English and Urdu terms across the content.
  • Works offline for textbook content — once a chapter is downloaded, search runs on the device with no internet needed.
Calibre Search across subjects and chapters
In real use

Three common student flows.

01

I forgot what something means.

Type the term — "homozygous", "alkali metal", "binomial theorem". Definition appears instantly with a tap-through to the chapter where it lives in your textbook.

02

I want every MCQ on a topic.

Type the topic — "kinematics", "oxidation reduction", "cell membrane". Every MCQ ever asked on it across textbook + past paper banks appears, ranked by how closely they match.

03

I am revising a chapter.

Type a key sub-topic from the chapter — "electron transport chain", "Newton third law". The chapter section, related definitions, and a curated set of practice MCQs surface together.

One search box. Your entire syllabus.

Open Calibre, tap the Search tab, and type any keyword. Watch your textbook open itself.