Write the answer by hand. Get it marked in 60 seconds.
PrepOne reads your handwritten board answers, gives step marks the way an examiner would, and picks your next questions from the topics where you lost marks.
Free to download. Android only for now.
- CBSE Class 12
- Bihar Board Class 10 and 12
- Hindi and English medium
How one answer gets marked
Board exams are written by hand and marked step by step. Practice that skips the handwriting leaves marks on the table.
- 1
Pick a question
Practise questions matched to your CBSE or Bihar Board syllabus and chapter weightage.
- 2
Write it by hand
Answer on paper with a pen, the way you will in the 3-hour board exam hall.
- 3
Snap a photo
PrepOne checks it in about 60 seconds, awards step marks and flags missing formulas, units and diagrams.
- 4
Fix what you lost
Weak topics come back as targeted questions and spaced revision, so they stay with you until exam day.
Everything for board prep, in one app
Built for CBSE and BSEB students. No video lectures to sit through. Just practice, marking and feedback.
Marks and feedback on your handwriting in 60 seconds
Board exams are written exams. Write your solution on paper, photograph it in the PrepOne app, and get step-by-step marking based on official CBSE and Bihar Board answer keys.
- Partial step marking
- Earn marks for correct formulas and derivation steps even if your final arithmetic has a typo.
- Presentation and unit checks
- Get alerts for missing SI units, omitted diagrams, or unclear step transitions.
Practise what you actually need
No two students have the same gaps. ABHYAS+ tracks your speed, accuracy and mistake types, then builds a study path that turns weak concepts into scoring ones.
- Weak topic detection
- Flags whether you are dropping marks to conceptual gaps, derivation steps, or arithmetic.
- Calibrated difficulty
- Starts at your current mastery and levels up to board exam standard.
Sit the 3-hour paper before the real one
Chapter practice builds confidence; full-length mocks build exam readiness. Papers follow the latest CBSE and Bihar Board blueprints, Sections A through E.
- Latest exam patterns
- Includes assertion-reasoning, case-based questions, and the 50% objective ratio for Bihar Board.
- Realistic countdown
- A running timer teaches you to split time between long derivations and short questions.
See how your board really asks questions
Ten years of CBSE and BSEB papers, sorted by chapter and weightage, so you know which topics carry the most marks.
- Chapter-wise PYQ drill
- Solve every question that has appeared in your board for each chapter.
- Model handwritten solutions
- Study topper-grade step presentation and diagram formatting.
Know where you stand, and keep formulas fresh
Cramming 500 pages before the exam leads to panic. PrepOne uses recall flashcards and spaced reminders so concepts stay in memory.
- Board Readiness Score
- One calibrated score that predicts your board percentage from real test performance.
- Revision reminders
- Timely prompts to review formulas and reactions before they slip.
Find your board and subjects
Pick your board to see the courses, question banks and mock papers waiting for you.
CBSE Class 12 Science
Board exam pattern and full NCERT curriculum. English medium.
Physics
Derivations, Ray/Wave Optics, Electrostatics, Magnetism & Modern Physics
Chemistry
Organic Mechanisms, Physical Numericals, Coordination & Biomolecules
Mathematics
Calculus, Vectors & 3D Geometry, Linear Programming & Matrices
Biology
Genetics, Human Physiology, Biotechnology & Ecology
English Core
Reading Comprehension, Note Making, Notice/Report Writing & Literature
Computer Science
Python Programming, SQL Queries, Computer Networks
Why students score higher with PrepOne
Same syllabus, same hours. A different way of preparing.
Without PrepOne
Practice format
Tapping multiple-choice questions on apps
Answer checking
Wait 14 days for coaching copies with just total marks
Step mistakes and units
No feedback on missing SI units, diagrams, or formula slips
Topic selection
Randomly re-reading chapters you already find easy
Revision routine
Last-minute panic cramming through 500 pages
Exam day confidence
Uncertainty about paper timing and derivation presentation
With PrepOne
Practice format
Real paper & pen handwriting under exam conditions
Answer checking
Instant 60-sec AI step-by-step scoring & partial credits
Step mistakes and units
Line-by-line flags showing exactly where you drop marks
Topic selection
ABHYAS+ AI assigns questions tailored to your exact weak links
Revision routine
Spaced flashcards & formula reminders that stick
Exam day confidence
Mastered 5+ full-length 3-hour board mock simulations
Affordable plans. Maximum board marks.
Less than the cost of a single textbook. Start free and upgrade when you want unlimited AI handwritten checking.
1 Week
Ideal for quick weekly unit test prep or testing the AI scanner.
- Full access to all subjects
- AI Handwritten Answer Scans
- Chapter-wise PYQs
- MCQ speed drills
- Hinglish & English explanations
1 Month
Perfect for mastering complex chapters and term exams.
- Everything in 1 Week plan
- Unlimited AI Step Evaluations
- ABHYAS+ Adaptive Diagnostic Engine
- Spaced Revision Flashcards
- Progress Analytics & Weak Topic Tracker
3 Months
Ideal for term exams and comprehensive pre-board revision.
- Everything in 1 Month plan
- Full-Length 3-Hour Mock Test Series
- Predicted Board Readiness Score
- 10+ Years Solved PYQ Archive
- Priority AI evaluation processing
Board Pass
Complete all-in-one exam season companion until results.
- Valid until your final board exam
- Unlimited AI handwritten scans
- All chapter tests & full board mocks
- Complete formula & reaction revision sheets
- Dedicated examiner step-marking rubric
- Complete confidence for 95%+ score
Free version available with daily questions & sample scans. Secure in-app activation via UPI, Cards, & NetBanking.
Questions students ask us
Everything about PrepOne and how it fits your board preparation.
Write your answers on physical paper using your regular pen. Take a clear photo using the PrepOne scanner. The AI extracts your handwriting, checks your formulas, derivations, diagrams, and numerical steps against official board mark schemes, and awards partial marks within 60 seconds.
Yes! PrepOne is built specifically for subjective board exams. It evaluates derivations, chemical reaction mechanisms, physics formulas, and step-by-step mathematical proofs, giving feedback on structure, presentation, and missing steps.
Yes, absolutely. PrepOne provides dedicated support for both Hindi and English mediums for Bihar Board Class 10 (Matric) and Class 12 (Intermediate Science & Arts), including the 50% objective OMR format.
No. While PrepOne includes thousands of objective questions for Section A speed drills, its core superpower is subjective handwritten answer checking and 3-hour full syllabus board simulations.
ABHYAS+ is PrepOne’s adaptive practice engine. It analyzes your mistakes, determines whether errors are conceptual, mathematical, or presentation-based, and serves customized questions to fix your specific weak links.
Yes. PrepOne contains 10+ years of official solved CBSE and Bihar Board questions sorted chapter-wise, complete with topper-style step solutions.
Yes. PrepOne was developed by alumni of IIT Gandhinagar, combining rigorous pedagogical frameworks with state-of-the-art multimodal vision AI.
Yes. You can download PrepOne free from Google Play and start practicing daily questions, chapter flashcards, and test sample AI handwritten scans before choosing a paid pass.
The Board Readiness Score is a predictive index from 0 to 100 calculated using your mock test accuracy, derivation step completeness, and time pacing, giving you an accurate estimate of your upcoming board result.
Yes. Coaching centers using SolvIQ CoachOne can assign tests directly to students on the PrepOne app, providing automated institute-level evaluation and parent reports.
Prep earlier. Prep better. Score higher.
Don't wait for pre-boards to find your derivation and formula slips. Download PrepOne and get your first handwritten answer marked today.
- Free to download
- Aligned to CBSE and Bihar Board syllabus
- Built by IIT Gandhinagar alumni