Stuck? Tap a chip — never see the answer
Six structured prompts: Hint, Concept, Shortcut, Eliminate options, Mnemonic, Formula. Test Mode is locked — the AI literally cannot leak the correct option.
TestCrux generates personalized tests around your weak topics, explains every mistake step-by-step, and tracks your growth in real time. Built for SSC, Banking, UPSC, JEE, NEET, GATE and more.
Accuracy trend · last 7 weeks
78%+9%
Overall
Accuracy
across 142 attempts
Topic strength
AI-generated test
20 Qs · tuned to your weak topics
160+
Exams Covered
8,000+
Mock & PYQ Tests
8L+
Practice Questions
100+
New Questions Daily
A quick walkthrough of a full attempt: take a mock test, ask CruxAI for help on a question you are stuck on, then read the report that tells you exactly what to fix next.
More walkthroughs on our YouTube channel.
100+ Exams Covered
From government jobs to engineering entrances. Find your exam, take a test, and know where you stand.
CGL, CHSL, MTS, GD, Steno, JE
6 exams
IBPS PO, SBI PO, RBI, Clerk
6 exams
RRB NTPC, Group D, ALP, JE
4 exams
Prelims, Mains, CDS, NDA, CAPF
5 exams
JEE Main, JEE Advanced, GATE
5 exams
NEET UG, NEET PG, INI-CET
4 exams
CAT, XAT, SNAP, NMAT, CMAT
5 exams
Browse every exam on TestCrux
35+ exams
CruxAI · Available now
Get a gentle nudge when you are stuck. Finish a test and see a report made just for you. Then go back through every question with clear, step-by-step help. No shortcuts, no spoilers, just a study partner who wants you to actually get it.
Six structured prompts: Hint, Concept, Shortcut, Eliminate options, Mnemonic, Formula. Test Mode is locked — the AI literally cannot leak the correct option.
Submit any attempt and get a full breakdown: topic mastery, time-vs-accuracy, your biggest leak, and a prioritized 3-step plan. Generated once per attempt — yours forever.
Biggest leak: Geometry — −12 marks lost
In review, three chips replace the silent answer key: Review my answer, Explain the correct method, and Diagram for visual problems. Math, LaTeX and figures, rendered inline.
See it in action
These are real screens from TestCrux — the same CruxAI you get on every question and after every test.
Stuck mid-test? Open CruxAI right on the question, tap a card, and watch a focused answer stream in — then dig in with a follow-up. In Test Mode it never reveals the answer.

Submit any attempt and CruxAI writes a full diagnostic — an executive verdict, your strengths and watch-outs, topic mastery, time allocation, difficulty, and a prioritized roadmap.

Everything Included
Real exam UX, time intelligence, and reliability — the essentials, done right.
Exact NTA, TCS iON, and IBPS layout: 5-color question palette, section tabs, mark-for-review, and navigation. Exam day feels familiar.
Per-question time tracking, overtime alerts, and time-vs-accuracy plots. CruxAI flags questions where you spent too long on the wrong path.
Pick difficulty per section, filter topics, choose timed or practice mode, enable section locking, or let AI build it for you in one tap.
Switch between English and Hindi mid-test without losing progress. Full bilingual coverage on questions, options, and AI explanations.
Auto-save every 15 seconds, crash recovery, and offline resilience. Close your browser mid-test and pick up right where you left off.
Previous-year papers, expert-curated mocks, and AI-generated practice, all reviewed by subject experts before they reach you.
The Difference
Most platforms give you a score and move on. TestCrux runs an AI diagnostic on every attempt, so every test is a learning opportunity, not just a number.
“Other platforms say: Score 156/200”
TestCrux AI says: “156/200. Your Data Interpretation accuracy dropped 18% vs last test. You lost 12 marks to negative marking on easy questions. I've generated a 20-question DI bar-chart drill. Start it now.”
CruxAI Pro
Coming soonThese are the features we are building to turn your mock scores into real rank confidence. They are not live just yet. Get CruxAI Pro now and each one unlocks for you the moment it is ready.
After 3+ mocks, CruxAI projects your real-exam score band, safe-pass cut-off, and the exact mark gain you need to clear top colleges.
Tap any PYQ or mock question and get a worked solution — every step explained, every shortcut shown, every common trap flagged.
One tap generates a focused drill — weak topics, formula recall, chapter booster, or a speed/accuracy challenge built from your last attempts.
Topic-by-topic percentile, your gap from the top 10%, where the toppers spend their time, and what you should change next.
Plus: Much higher daily mock & PYQ limit · Higher AI helper limits · Smart Test Analysis · Curated PYQ sets · Custom test with CruxAI guidance · Priority support chat.
Pricing
Get full exam access, daily AI help, and a daily in-depth report on the Free plan. Upgrade to Pro when you want a much higher daily limit, deeper analytics, and a personalized practice engine.
Real prep, real AI — zero card details.
Built for serious aspirants chasing rank.
Everything in Free, plus:
Secure payment by Razorpay. Cancel anytime.
Pricing & feature scope may evolve before launch. Early-list members get the locked-in price regardless.
Frequently asked
Still curious? Reach out any time. We read every message and love hearing from aspirants.
Take your first mock test for free. Get your scorecard, see where you stand, and know exactly what to work on, all in 30 minutes.
No credit card required