Open the app. Start in a minute.
Calibre is built so a Class 9 student in Multan, an FSc XII student in Lahore, or an MDCAT aspirant in Karachi can install it, sign up in 30 seconds, and be studying their actual PCTB chapter in under two minutes. No tutorial video. No empty templates. No card needed for the 7-day trial.
What you see the first time.
Most prep apps gate the content behind a long survey, a forced tutorial, and a card on file. Calibre keeps it simple: sign up, pick your class, start studying.
- 1
Create your account in 30 seconds
Email + password. No long survey, no 5-step wizard. We just need to know who you are so your progress, mocks, and Mistake Tracker queue stay saved.
- 2
Pick your class or exam
A clean six-button grid: Class 9, Class 10, FSc XI, FSc XII, MDCAT, ECAT. Tap one and only that syllabus loads.
- 3
Pick your board
Punjab Board, FBISE, or BISE Karachi/Sindh/KPK/Balochistan. Calibre rewires the pairing scheme and Long-Q model answers to match.
- 4
Open any chapter and start
Your 7-day free trial begins. Full feature access. No card required. Read the chapter, try the first MCQ, decide if it works for you.
Six steps, in real detail.
Here's what a complete study session looks like — from opening the app to closing it forty minutes later, having actually moved the needle.
Pick your class, board, and stream
Class 9, Class 10, FSc XI, FSc XII, MDCAT, or ECAT. Punjab Board / FBISE / BISE for boards. Pre-Med / Pre-Eng / ICS for FSc. The picker is three taps. Calibre saves your path and never asks again — until you sit your next exam.
- ✓Punjab Board pairing scheme loaded automatically
- ✓FBISE A++ to U grading band applied for Federal students
- ✓MDCAT loads PMC's 71 units; ECAT loads UET's 4 group combos
Open a chapter — the textbook, but useful
The chapter screen is the PCTB content reformatted for screens. Key terms are highlighted; tap any one to get the examiner-form definition. Page numbers from the physical book appear in the margin so your teacher's reference still works.
- ✓Tap-to-define on every key term · 5,421 PCTB terms wired
- ✓Physical book page numbers in the margin (e.g. PCTB pg. 112)
- ✓Quick-summary "What / Why / What you'll learn" on every chapter open
Practice — MCQs, Short Q, and Long Q, separately
Calibre never lumps practice into one pile. MCQs run timed at 45 seconds each. Short Q gives you a model 3-5 line answer to compare against. Long Q reveals a full model long answer in the format your examiner reads — paragraphs, diagrams, and step-by-step working.
- ✓MCQs: 45 sec each · textbook vs higher-difficulty vs past-paper tagged separately
- ✓Short Q: ~3-5 line model answers in PCTB examiner tone
- ✓Long Q: full paragraph + diagram + working, matched to your board's rubric
Track — every wrong answer is queued
The moment you get an MCQ wrong, it enters the Mistake Tracker. It comes back in 1 day, then 3 days, then 7 days — until you nail it three times in a row. You don't schedule this. Calibre does it silently.
- ✓Spaced-repetition tuned for board exam timelines (not language flashcards)
- ✓Cross-chapter: a wrong Bio enzyme MCQ surfaces in tomorrow's mixed round
- ✓Visible streak: how many wrong-answers you've actually beaten
Coach — your weakest chapter gets surfaced
Every Sunday The Coach scans your week: lowest mock score, longest-untouched topic, weakest chapter. It builds a 30-minute daily plan for the week ahead — a real, concrete "tonight, do this." You can override it. Most don't.
- ✓30-min daily plans · split across MCQs, formulas, and one long Q
- ✓A weekly "you're behind on Ch.7" nudge if you skip two days
- ✓Rule-based and explainable — never a black-box recommendation
Sit a full mock — exact paper conditions
Two weeks before your real exam, Calibre opens a full Punjab Board / FBISE / MDCAT / ECAT mock paper. Same time, same pairing scheme, same marking rubric. You sit it in one go, get an auto-marked breakdown, and a chapter-wise weakness report you take to your teacher.
- ✓14 mocks per subject for boards · paper pattern locked to your board
- ✓MDCAT mocks: 200 MCQs, 3.5 hours, no negative marking · PMC rules
- ✓ECAT mocks: 100 MCQs, 100 minutes, UET negative-marking applied
Morning, afternoon, evening — in real life.
What does Calibre actually look like across a regular school day? Here's the honest pattern — pulled from pilot students who use it every day.
Bus ride to school
15 minutes on the Definitions Hub. Today the Coach surfaced Biology Ch.4 enzymes — five definitions, swipe-through, all offline. No data burn.
After school session
Sit one chapter properly: read the PCTB text, do 10 MCQs, attempt one Short Q. The model answer reveals after you submit. You take a screenshot of where you went wrong.
Before bed re-drill
The Mistake Tracker queues seven wrong answers from earlier in the week. You clear them in ten minutes. Your streak ticks up. You sleep.
Total: under an hour. Spread across three small windows you already had. That's the design.
The logic behind every screen.
Most prep apps treat their algorithm as a secret. We don't. Here's exactly how Calibre decides what to show you next.
How your weakest chapter is picked
- Lowest accuracy on chapter MCQs in the last 14 days
- Longest time since you opened that chapter
- Whether your most recent mock dropped points there
- Pairing scheme weight: high-weight chapters get priority
How re-drill timing works
- First wrong → re-show in 1 day
- Wrong again → reset interval back to 1 day
- Correct → interval extends to 3 days, then 7 days
- Three correct in a row → retired from queue
How mocks are timed and assembled
- Punjab Board: 3-hour timer, Q1 MCQs auto-locked at 20 min
- FBISE: A++ to U bands applied to the marking sheet
- MDCAT: 200 MCQs, 3.5 hrs, no negative marking · PMC rules
- ECAT: 100 MCQs, 100 min, UET negative-marking applied
What you don't have to do.
A lot of effort in Calibre went into removing steps, not adding them. Here's what isn't in your way.
No tutorial video
You don't sit through a 4-minute intro. Open the app, pick your class, open a chapter. The product is the demo.
No card for the trial
Sign up with email and password. We never ask for your card during the 7-day free trial. You decide to subscribe only after the product proves itself.
No card to start
Every paid plan starts with a 7-day free trial. No card. JazzCash, Easypaisa, or bank when you decide.
No daily streaming
Calibre is installed, not streamed. Your prepaid data isn't a recurring tax. Download once, study for months.
No empty-template setup
No "build your study plan" deck. The Coach builds the first plan automatically the day you sign up.
No syllabus guessing
Punjab Board, FBISE, BISE, MDCAT, ECAT — every paper pattern is built in. You don't configure anything.
Open the app. Pick a chapter. That's the whole demo.
Join the waitlist. We email you once, the day public signups open. No marketing list, no spam.