Never blank out
in an interview again
The difference between grinding
and remembering
90% retention
Most developers forget 80% of what they solve within a week. Our spaced repetition system flips that - you'll remember 90% of problems even a month later.
3x faster recognition
See a problem pattern and your brain instantly knows approach. No more staring at wall trying to remember if it's BFS or DFS.
Know your readiness
Stop guessing if you're ready. Our readiness assessment tells you exactly which topics need work before your interview.
Your brain is working
against you
You start motivated. Make a spreadsheet, Notion page, or notes everywhere. Looks perfect.
You grind problems. Feeling good.
Two weeks later, it's chaos. Can't remember that tree problem. Your DP approach? Gone.
The forgetting curve hits hard. Everything you learned starts fading.
Interview day. Your mind goes blank.
All those months of practice? Can't recall a single pattern when it matters most. The interviewer asks "have you seen this before?" and you lie.
This happens to 90% of developers grinding LeetCode solo. Not because they're not smart enough - because their method is broken.
See it in action
Your dashboard for interview prep
Everything you need to crush interviews
Built by developers who've failed interviews - and learned what actually works
Daily review that actually sticks
Start each day with a personalized review session. We calculate exactly which problems are fading from memory and queue them up for you. No random practice - every problem counts.
350+ problems, zero noise
Stop drowning in thousands of random LeetCode problems. We've curated 350+ essential problems that actually appear in interviews. Filter by company, difficulty, pattern, or topic.
Know exactly when you're ready
No more guessing if you should schedule that interview. Our readiness assessment analyzes your strengths and weaknesses across every topic, pattern, and difficulty level.
Adaptive Practice
Stop grinding problems you've mastered. We automatically adjust difficulty based on your performance.
Company-Specific Prep
Target Google, Meta, Amazon? Filter problems by what they actually ask in interviews.
Progress Analytics
See your growth over time. Track time spent, problems solved, and retention rates.
Study Groups
Don't grind alone. Join groups, see what others solve, and stay motivated with leaderboards.
Smart Scheduling
We remind you exactly when a problem is about to fade from memory. Never miss a review.
Problem Hints
Stuck? Get hints that guide you to solution without giving it away.
Built for actual interview prep
We built CodingInterviewHQ because existing methods don't work. Period.
| Feature | CodingInterviewHQ | LeetCode / Others |
|---|---|---|
| Spaced Repetition | ||
| Curated Problem Set | 350+ problems | 3000+ problems |
| Readiness Assessment | ||
| Company-Specific Prep | ||
| Pattern-Based Organization | Basic only | |
| Progress Analytics | Limited | |
| Adaptive Practice | ||
| Free Tier | Forever | Limited |
Built by developers who've been there
I failed my first Google interview. Failed my second too. Same story both times - solved hundreds of problems on LeetCode, felt confident going in, then completely blanked during interview.
The problem wasn't ability. It was retention. I'd learn a pattern, use it for a week, then it would fade. By the time interviews rolled around, most of it was gone.
So I built what I wish existed: a system that actually makes knowledge stick using spaced repetition. Not random practice. Not grinding the same easy problems. Strategic reviews that lock patterns into long-term memory.
Now I want to help you avoid the same mistakes I made. No more blanking out. No more "I knew this last week." Just confidence that you'll crush it when it counts.
Ready to stop forgetting?
Join thousands of developers who've ditched the grind for a system that actually works.