Initial Test module
- Hands-on practice tests with a real timer
- New questions added every week
- Syllabus and content updated automatically

Officer to Commission Officer
Join Armed Forces, Join Pak Army, Join Pak Navy, Join Air Force, ISSB Preparation, Initial Preparation
Online ISSB prep portal and Initial Test preparation in one place: practice tests, psych tests, GTO and interview guides.
Inside OTCO
Timed tests, stages that unlock as you finish them, a progress report and an AI study assistant. On your laptop and on your phone.


3
Forces
Army, Navy and Air Force
24
ISSB topics & tests
Arrival day to GTO day II
750+
Initial Test MCQs
Verbal and academic
1,700+
WAT words
In timed stages
440
Non-verbal pages
Four practice booklets
Features
Timed practice, fresh content every week, AI help and live support for Army, Navy and Air Force candidates.
Free trialtry it before you pay
6 months of accessfrom your registration date
Support always onwhenever you need help
Ask anything about your tests and get instant answers, day or night.
Finds your weak areas and sends notifications on what to practise next.
Chat live with the developer and other students.
Read and share real ISSB experiences from other candidates.
Take a tour
Real screens from OTCO. This is what you get after you register.
A picture appears for 30 seconds, then you write your story before the timer runs out.

Phone and laptop
Most candidates prepare on their phones, so every screen is built for small screens first, and all of it works on a laptop too.



How to use
From sign-up to your first practice test.
Sign up with your name, email and phone number.
Pick Army, Navy or Air Force, then Initial Test or ISSB.
Try OTCO free before you pay.
Take timed tests, see your results and track your progress.
FAQ
ISSB (Inter Services Selection Board) is the five-day selection process for candidates who want to join the Pakistan Army, Navy or Air Force as commissioned officers. Psychologists, Group Testing Officers (GTO) and deputy presidents judge your personality, leadership, confidence, intelligence, decision-making and physical fitness through psych tests, group tasks, interviews and outdoor activities.
OTCO is an online ISSB prep portal and Initial Test preparation platform for Pakistan Army, Navy and Air Force candidates. You practise the ISSB psych tests on real timers, read guides for every ISSB day and solve Initial Test MCQs, all on your phone or laptop.
All the Psych Day tests with real timers: Word Association Test (WAT), Sentence Completion Test (SCT), Situation Reaction Test (SRT), Picture Story, Point Story, the Officer Personality Test (OPI) and the Mechanical Aptitude Test (MAT). There are also guides for Arrival Day, the GTO Day 1 and Day II tasks (group discussion, military planning, group tasks, command task and individual obstacles), the interviews and mutual assessment.
The Initial Test comes before the ISSB: verbal and non-verbal intelligence tests and an academic test, followed by medical, physical, essay writing and an interview. OTCO's Initial Test module, for Army PMA Long Course and TCC candidates, has 750+ timed MCQs with instant results, four non-verbal booklets, a BMI calculator and guides for every step.
Pakistan Army (PMA Long Course, DSSC, TCC, Lady Cadet Course and SSC), Pakistan Navy (PN Cadet and SSC) and Pakistan Air Force (GD Pilot). The ISSB module is the same for every force.
Yes. Register and try OTCO free before you pay. Plans and prices are shown inside your account, and full access lasts 6 months.
Yes. OTCO works in any browser on your phone, tablet or laptop, and you can add it to your home screen like an app.
No. OTCO is an independent preparation platform. It is not affiliated with the Pakistan Armed Forces or the ISSB.
Pricing
Sign up and try OTCO free. Plans and prices are shown inside your account.
Start free trial