Stop scrolling notes.
Lock in on the units that score marks.
Pick your branch and semester. lockin. identifies weak topics, drills you with interactive 3D explainers, and tracks your readiness for the end-sem.
39 courses · 390 live 3D labs · questions for 26 subjects · 100% free
Everything for your semester, in one place
Built specifically around the UTU curriculum: branch subject codes, units and marking schemes.
3D explainers
390 live 3D labs. Spin a saddle point, watch EM waves travel, change any value and see what happens.
Practice by unit
Endless fresh questions per unit in 26 subjects. Most are generated on the spot with computed solutions.
Timed mock tests
Question palette, real timer countdown and instant grading so the exam hall feels familiar.
Papers & PYQs
Access verified university past papers, model papers, and assignments for every single unit.
Lectures by unit
One tap from any topic to top-rated YouTube lectures mapped specifically to your syllabus.
Ask Lochi (AI)
Stuck late at night? Get a clear, step-by-step breakdown of the exact concept you missed.
Streaks & goals
Daily goals, badges, XP milestones, and study streak tracking to keep you consistent.
Try it right here
See it move
Formulas stop being scary when you can turn them around. This ripple is drawn from z = sin(k·r − 2t) / (1 + 0.35·r). Change k and the waves tighten. Every lab in lockin. works the same way.
390
live 3D labs
899
past-paper questions
39
courses
How it works
- 1
Sign in
Create an account with your email and a password, or get a one-tap sign-in link.
- 2
Tell us your semester
Name, branch and semester in under a minute.
- 3
Drill, explore, repeat
Fresh questions every round, 3D labs for hard concepts, and a live countdown to your exams.
Semester rules, no cap 🧠
Made by Kartik Chilkoti and team · We pre-programmed the exact marking math so you dodge backlogs.
Theory Blueprint
30 internal tests + 20 TA marks + 100 end-sem paper. Know where every mark comes from.
The Pass Code
Score 30/100 in the written exam and 60/150 total. Lock this in and you're 100% safe.
Grade Ladder
8 grade tiers from Outstanding 'O' (90%+) down to 'P'. We track your path to the top tier.
Official Archive
Direct integration with actual university question papers and model test sets.
Marking rules decoded by Kartik Chilkoti and team. Always verify official exam dates with your college.
Walk into your end sem
knowing your number.
Instant 3D labs, auto-graded unit quizzes, and UTU question banks. Takes less than a minute to start.