India’s AI that grades descriptive written answers
Stop Spending
Hours Correcting
Papers.
Unchay evaluates your students’ written answers with AI — and creates quizzes instantly.
Built for:
Teachers
Schools
Coaching Institutes
Tuition Centers
School admin? We’ll set up a 30-min walkthrough — no commitment.
Individual teacher? Log in and start evaluating in minutes.
30%Less workload with Unchay
All boardsCBSE · ICSE · State
Class 1–12Every subject, every level
P
Physics — Class 12 CBSE · AI evaluated
15/20
Q: Explain Faraday’s Law of Electromagnetic Induction
“Faraday’s law states that induced EMF in a coil is directly proportional to the rate of change of magnetic flux through it. EMF = −dΦ/dt…”
Concept clarity
8/10
Formula used
5/5
Real example
2/5
Tip: Add a real-world example like a generator or transformer for full marks
Feature 01 · Our USP — Paper Evaluation AI
The Only Tool That Grades
Descriptive Written Answers
Every other EdTech tool only checks MCQs. Unchay reads what your student actually wrote, understands it subject-by-subject, and gives marks with specific feedback — exactly like a teacher would.
M
Mathematics
9/10
Question
Solve: 2x² − 5x + 3 = 0 using the quadratic formula
“a=2, b=−5, c=3. D = 25−24 = 1. x = (5±1)/2. So x = 1.5 or x = 1.”
a=2, b=−5, c=3 — correctly identified
D = 25−24 = 1 — discriminant correct
x = (5±1)/2 — notation error
Should divide by 2a = 4, not 2
x = 1.5 or x = 1 — final answer correct
−1 mark: Step 3 notation error · Final answer accepted
B
Biology
16/20
Question
Explain the process of DNA Replication with the enzymes involved
“DNA replication begins at origin. Helicase unwinds the double helix, primase lays RNA primers. DNA Pol III synthesises in 5’→3′ direction. Leading strand is continuous…”
Enzymes named8/8
Sequence correct4/5
Terminology4/7
Mention Okazaki fragments on the lagging strand for full marks
P
Physics
15/20
Question
Explain Faraday’s Law of Electromagnetic Induction with its mathematical form
“Faraday’s law states that induced EMF is directly proportional to rate of change of magnetic flux. EMF = −dΦ/dt. The negative sign shows Lenz’s law…”
Concept clarity8/10
Formula correct5/5
Real example2/5
Add a real-world example — generator, transformer, or induction cooktop
C
Chemistry
17/20
Question
Describe SN1 and SN2 reaction mechanisms with examples
“SN1 is a two-step mechanism where leaving group departs forming a carbocation. SN2 is a single-step backside attack with Walden inversion of configuration…”
Mechanism steps9/10
Key terms used4/5
Diagram noted4/5
Include the energy profile diagram for SN1 vs SN2 for full marks
No other tool does this
Why teachers switch to Unchay
| Capability | Other EdTech Tools | Unchay |
|---|---|---|
| MCQ quiz generation from any PDF | ✓ Yes | ✓ Yes |
| Descriptive written answer evaluation | ✗ Not available | ✓ Full AI evaluation |
| Step-by-step grading for Maths & Science | ✗ Not available | ✓ Step-by-step checked |
| Subject-specific scoring criteria | ✗ Not available | ✓ Per subject rubrics |
| Personalised tip per student answer | ✗ Not available | ✓ Actionable per student |
| All Indian boards — CBSE, ICSE, State | Partial | ✓ All boards, Cl. 1–12 |
Feature 02 — Quiz AI
Create a Full Question
Paper in 30 Seconds
Upload any chapter PDF, textbook, or topic and Unchay instantly generates a complete question paper. MCQs, short-answer and descriptive questions — all in one go. Covering every Indian board.
- MCQ, short-answer and descriptive mix from a single upload
- CBSE, ICSE, Maharashtra, Karnataka, and all state boards
- Edit, reorder or regenerate any question before publishing
- Share via link — students attempt on phone or laptop
- Set time limits, shuffle questions, prevent copying
Chapter 5 — Surface Chemistry.pdf
Uploaded · 34 pages · Processing complete ✓
BoardCBSE
Class12
Questions20
TypeMCQ + Descriptive
Generate Quiz Now
Q1Define adsorption. How does it differ from absorption? Give one example each. (3 marks)
Q2Which of the following is an example of a lyophilic colloid? (MCQ — 1 mark)
Q3Explain the Freundlich adsorption isotherm. Draw the graph and derive the equation. (5 marks)
+ 17 more questions generated
Feature 03 — Online Tests
Run Proctored Tests
Online in Minutes
Schedule timed online assessments — quizzes, school tests, or competitive mock papers. Built-in timers, tab-switch flags, and instant scoring out of the box.
- Share via link — students attempt on phone, tablet, or laptop
- Per-section or full-test timers with auto-submit on expiry
- Tab-switch detection flags students who leave the test window
- Mock tests for CAT, NEET, JEE — with section-level timing
- Instant scoring and auto-graded results — no spreadsheet work
Section: Quantitative
Question 12 of 25
Time left
23:14
Q12.
If a + b = 7 and ab = 12, find the value of a² + b².
● Tab-switch detection on
● Auto-submit on expiry
JEE Mock · 3 sections
Feature 04 — Reports & Dashboard
Know Exactly Where
Every Student Stands
Unchay gives you a live class dashboard the moment students submit. See score distributions, spot who’s struggling, and share reports with parents — all without touching a spreadsheet.
- Live class performance dashboard after every test
- Individual breakdown by question, topic and criteria
- Track improvement across tests over the full term
- Share parent-ready reports with one click
- Export for school records and PTMs
Class Dashboard — History Cl.10 Live
38
Students evaluated
74%
Class avg score
+6%
vs last test
P
Priya Sharma
92%
R
Rahul Verma
78%
A
Ananya Desai
64%
How It Works
From assessment to feedback in 4 steps
No setup. No training. Works for physical and online tests.
1
Create or Upload Assessment
Build a question paper in Unchay, or upload an existing one. Mix MCQ, short-answer, and descriptive — any board, any class.
2
Take Physical or Online Assessment
Students write the test on paper, or attempt it online on any device. One workflow — either format.
3
Upload Answer Sheets
For physical tests, snap photos of student answer sheets. Unchay extracts handwriting automatically. Online submissions skip this step.
4
Instant Feedback
AI evaluates every answer with 90–95% accuracy — across handwriting, maths formulae, chemical equations, and biology diagrams. Reports in seconds.
Pricing
Simple, transparent pricing
Teachers start free. Institutes get a tailored demo. No hidden fees.
Teacher
For individual teachers
₹0
Forever free · No card needed
- ✓30 AI-generated quizzes/month
- ✓50 descriptive answer evaluations/month
- ✓All subjects · All boards
- ✓Basic class dashboard
- ✗Parent report sharing
- ✗Batch management
Most Popular
School / Institute
For schools & coaching institutes
₹1,000/student/yr
Per student, per year · Billed annually
- ✓Unlimited quizzes & evaluations
- ✓All subjects · All boards · Class 1–12
- ✓Live class dashboard
- ✓One-click parent report sharing
- ✓Batch & section management
- ✓Teacher onboarding & support
Enterprise
For large schools & institute chains
Custom
Tailored to your institution size
- ✓Unlimited students & teachers
- ✓Multi-branch management
- ✓Dedicated onboarding support
- ✓Custom branding & reports
- ✓SLA & priority support
- ✓API access & integrations
All plans include CBSE, ICSE and all State Boards · Class 1–12 · Cancel anytime
Teacher Reviews
What educators are saying
★★★★★
“40 descriptive papers evaluated in 10 minutes. That used to take my entire Sunday.”
★★★★★
“It checks every step, not just the final answer. Students finally understand where they went wrong.”
★★★★★
“Descriptive answers across Physics, History, and Chemistry all evaluated consistently. Our teachers trust the scores.”
Ready to grade less, teach more?
Cut your workload by 30%
using Unchay.
Book a demo tailored to your institute, or log in as a teacher and start in minutes.
Free plan for teachers · Works on any device · CBSE · ICSE · State Boards