Stop preparing randomly. Prepare systematically.
One unified platform for Web Development, Backend, Core CS, System Design & DevOps. Graded strictly from Foundations to Internals. ₹399 / $9 lifetime, no subscription.
Why most technical interview prep fails
Engineers waste 100+ hours jumping between outdated blogs, chaotic YouTube playlists, and DSA-only platforms without mastering core engineering mechanics.
- ✕Scattered across 20+ blog tabs and uncurated GFG articles.
- ✕Zero progression — basic syntax mixed unpredictably with complex internals.
- ✕Surface-level trivia without deep architectural explanation.
- ✕Expensive monthly subscriptions that lock you into recurring charges.
- One unified, standardized codex across 27+ modern technologies.
- Strict 3-degree progression: Foundations → Practical → Internals.
- Full model answers, edge case analyses, and implementation folios.
- ₹399 / $9 one-time payment for permanent lifetime access.
Three Disciplined Degrees of Mastery
Every single technology follows identical rigorous grading so you always know where you stand.
Easy · Foundations
First principles, core terminology, basic syntax, and standard screening questions expected in round 1 technical rounds.
Medium · Practical
Real-world mechanisms, edge cases, performance trade-offs, state management, and practical code implementations.
Hard · Architecture
Runtime internals, memory models, distributed design, concurrency failure modes, and architectural decisions.
Explore All 27+ Technologies
Every technology is fully catalogued with Easy, Medium, and Hard difficulty levels.
Web & Frontend
Modern UI libraries, typed scripting, and state management
Context API
Easy · Medium · Hard
CSS
Easy · Medium · Hard
HTML
Easy · Medium · Hard
JavaScript
Easy · Medium · Hard
Next.js
Easy · Medium · Hard
React
Easy · Medium · Hard
Redux
Easy · Medium · Hard
TypeScript
Easy · Medium · Hard
Zustand
Easy · Medium · Hard
Backend & Frameworks
Server runtimes, enterprise APIs, and asynchronous frameworks
Databases & Data Layer
Relational engines, NoSQL stores, caching, and ORMs
Core Computer Science
Fundamental systems, networking, and object theory
System Design & DevOps
Scalable architecture, object design, and containerization
Inspect 5 Free Questions in Every Single Codex
We believe you should see the exact quality and depth before spending a single rupee. Read 5 complete questions and model answers in Easy, Medium, and Hard across all technologies with zero signup required.
One Key. Every Technical Question.
No recurring monthly charges. No renewal reminders. Pay once and keep your technical interview edge forever.
One-time settlement · Inclusive of all taxes · No recurring fees
Settled securely through Razorpay · UPI, Cards, Net Banking
Why DevPrep is Built Differently
| DIMENSION | DEVPREP | GENERAL CONTENT SITES | DSA-ONLY PLATFORMS |
|---|---|---|---|
| Curriculum Organization | Strict 3-Level Graded Path | Unorganized & Random | Algorithm Tagged Only |
| Framework & Internals | Deep (Fiber, JVM, libuv, etc.) | Superficial Syntax | None (Algorithms only) |
| System Design (HLD & LLD) | Included in Core Access | Fragmented Articles | Separate Paid Upsell |
| Pricing Model | ₹399 / $9 One-Time Lifetime | Ad-heavy or Free/Messy | $35+/mo Recurring |
QUESTIONS CURATED
TECH DISCIPLINES
MODEL ANSWERS
LIFETIME ACCESS
Everything You Need to Know
What is included with free access vs lifetime access?
Every visitor can read the first 5 questions of every single difficulty level across all 27+ technologies for free — that is over 400+ complete model answers with no account or card required. The ₹399 / $9 lifetime key unlocks all 3,600+ questions, full implementation code folios, and all future technology additions forever.
Is it really a one-time payment with no subscription?
Yes. Exactly ₹399 in India (inclusive of taxes) or $9 internationally. There are no recurring charges, no monthly renewals, and no hidden fees. Once enrolled, your account has permanent lifetime access.
How are the questions organized?
Content is structured into three clear degrees per technology: Easy (Foundations, core definitions, and screening questions), Medium (Practical patterns, edge cases, and real-world mechanisms), and Hard (Runtime internals, architecture, memory models, and concurrency).
Is System Design (HLD & LLD) covered?
Yes. DevPrep includes dedicated, comprehensive tracks for High-Level Design (HLD: scalability, load balancing, caching, sharding, distributed transactions) and Low-Level Design (LLD: SOLID principles, design patterns, clean architecture).
How does DevPrep compare to LeetCode or GeeksforGeeks?
LeetCode focuses strictly on Data Structures & Algorithms (DSA). General sites like GFG have outdated, crowd-sourced, and uncurated articles. DevPrep focuses on technical engineering domain knowledge — the exact framework internals, architecture, and language mechanics interviewers actually test.
Which payment methods are supported?
Payments are processed securely via Razorpay, supporting UPI (Google Pay, PhonePe, Paytm), Debit/Credit Cards, Net Banking, and major international cards.
What if I experience issues with my payment?
Your access is bound to your account automatically upon payment verification. If any network timeout occurs, sign in and your order status can be re-verified instantly, or contact support@devprep.online for immediate assistance.
Stop preparing randomly. Prepare systematically.
Get lifetime access to 3,600+ interview questions across 27+ technologies for ₹399 / $9.
One-time contribution · Lifetime rights · All future codices included