Pricing
Learning is free. Proving you're ready is Pro.
Every lesson, every problem and every visual is free, and so am I. Pro adds the tools that tell you, honestly, whether you would pass the interview.
1. What brings you here?
Pro plans all unlock the same things. You only choose how long.
Free
For learning anything on Cruxion.
₹0
Forever. Sign in with Google, no card.
- Every DSA lesson, problem and visual
- Guided stages: Frame, Observe, Predict, Control
- Write and run code, 60 runs a day
- Defend questions, graded by rubric
- Crux, streaks, XP and your mastery map
- Mixed review and recall practice
- Notes, and the list of mistakes you repeat
- The AI engineering track, with 5,000 AI tokens a day
Pro
For the stretch before an interview.
No auto-renew. Pro is invite-only for now, so these prices apply once it opens to everyone. Until then, an invite code unlocks it.
- Everything in Free, with 300 runs a day
- Your explanations graded by AI, line by line
- Timed mock interview rounds with a report card
- Interview readiness for every pattern
- Cheat-sheets for each pattern
- Your mistake report, plus sessions that fix them
- Export your notebook as a PDF
- 20,000 AI tokens a day
Tap each one. I'll show you what it looks like inside.
your explanation
“I store each number in a map, and for every new number I check if target minus it is already there…”
- ✓Uses a hash map to store seen values
- ✓Explains why lookup is O(1)
- !Says what happens with duplicate values
After you solve a problem, you explain your approach in your own words. On Free a rubric checks it. On Pro the AI reads every line and tells you exactly which part of your reasoning is missing.
| Feature | Free | Pro |
|---|---|---|
| All DSA lessons, problems and visuals | Included | Included |
| Guided stages and hints | Included | Included |
| Code runs a day | 60 | 300 |
| Submits a day | 20 | 100 |
| Defend questions | Included | Included |
| Explanation grading | Rubric | AI, line by line |
| Crux, streaks, XP, mastery map | Included | Included |
| Mixed review and recall | Included | Included |
| Targeted mistake fixes | Pro only | Included |
| Mistake report | Pro only | Included |
| Mock interview rounds | Pro only | 5 a day |
| Readiness per pattern | Overall score | Every pattern |
| Cheat-sheets | Pro only | Included |
| Notes | Included | Included |
| Notebook PDF export | Pro only | Included |
| AI engineering track lessons | Included | Included |
| AI hints and tutor, tokens a day | 5,000 | 20,000 |
Pro is invite-only right now. Join the waitlist and we open it a few people at a time, in the order of the line. Your personal code arrives by email. Everything on Free is open to you while you wait.
More in our terms.