Pricing
Designed for engineers, not platforms.
Start free with the Learning module and 3 LLD problems. Unlock the full bank from ₹299/month — cancel anytime.
Monthly
₹499 billed monthly
- Full LLD problem bank (50+ problems)
- Unlimited AI reviews with rubric scoring
- Mock interviews with senior-staff persona
- Submission history with diff against attempts
- Streak freeze + daily challenge bonus XP
- Priority support
Auto-renews. Cancel anytime.
Half-Yearly
Save 30%₹2,094 billed every 6 months
- Full LLD problem bank (50+ problems)
- Unlimited AI reviews with rubric scoring
- Mock interviews with senior-staff persona
- Submission history with diff against attempts
- Streak freeze + daily challenge bonus XP
- Priority support
Auto-renews. Cancel anytime.
Annual
Save 40%₹3,588 billed yearly
- Full LLD problem bank (50+ problems)
- Unlimited AI reviews with rubric scoring
- Mock interviews with senior-staff persona
- Submission history with diff against attempts
- Streak freeze + daily challenge bonus XP
- Priority support
Auto-renews. Cancel anytime.
Common questions
What's free?
The Learning module is fully free for any signed-in user. The first 3 LLD problems (Parking Lot, Splitwise, Elevator) are free so you can try the workspace and AI review before paying.
What's the difference between Autopay and Pay once?
Autopay sets up a Razorpay subscription that renews automatically. Pay once is a single charge for the same total — no renewal, no card mandate.
Which payment methods are supported?
UPI, credit/debit cards, net banking, and wallets — all handled by Razorpay.
How do I cancel?
Email hello@archtin.com from your account email and we'll cancel before the next billing cycle. You keep Pro access until the period ends.
Need a team or college plan?
Write to our team — we'll set you up with a cohort dashboard and bulk pricing.