Stop forgetting algorithm patterns
Flashcard-style training that builds pattern recognition for LeetCode problems — powered by spaced repetition.
Start training — free300+ cards · 20 patterns · 15 code templates · Free forever
or unlock all templates + Pro extras for $29How it works
See a problem
Read a LeetCode problem description — no coding required.
Identify the pattern
Pick from 4 choices. Build intuition for which pattern fits.
Review with SRS
Algorithm curates each day — cards you struggled with plus new ones.
300+ problems across 20 patterns · more added regularly
Why spaced repetition works
Your brain forgets ~80% of new information within 48 hours. Spaced repetition fights this by reviewing material at scientifically optimized intervals.
Retention
Spaced repetition doubles long-term retention compared to massed study.
Per day
Short daily sessions beat weekend cramming. Consistency over intensity.
Algorithm
The same proven algorithm used by Anki, trusted by millions of learners worldwide.
Built to be addictive
Like Duolingo, but for algorithms
Streaks, XP, levels, and pattern mastery badges keep you coming back. Daily goals make practice a habit, not a chore.
Templates turn LeetCode into pattern recognition.
Memorizing someone else’s solution doesn’t help with the next problem. A consistent template does.
Hand-crafted, not generic
Each template designed to avoid the bugs you keep hitting.
15 templates, every pattern covered
From binary search to monotonic stacks — the full library.
140+ worked LeetCode examples
Real problems solved with the template, not just described.
Built for speed, not marathons
Other platforms have you coding full solutions for hours. Grind Patterns drills pure pattern recognition — fast.
| Grind Patterns | LeetCode | NeetCode | AlgoExpert | AlgoMonster | |
|---|---|---|---|---|---|
| Best for | Quick pattern drills | Solving full problems | Video walkthroughs | Video explanations | Structured courses |
| Code templates | 15 patterns · 140+ examples | — | — | — | — |
| Time per session | 10–20 min | 1–2 hours | 30–60 min | 30–60 min | 30–60 min |
| Reps per session | 20 | 2–3 | 3–5 | 3–5 | 5–10 |
| No coding needed | — | — | — | — | |
| Spaced repetition | — | — | — | ||
| Price | Free / $29lifetime | $159/yr | $149/yr | $99/yr | $459 |
Simple pricing
Free
$0
- All 300+ pattern recognition cards
- All 20 algorithm patterns
- Spaced repetition scheduling (SM-2)
- Progress dashboard, streaks & XP
- 20 cards per day, algorithmically curated
- Unlimited Practice Mode on already-learned cards
- Free Binary Search code template
Pro
$29 once
- Everything in Free
- All 15 hand-crafted code templates with 140+ worked LeetCode examples
- Pattern-vs-pattern confusion breakdowns
- Understand why each wrong option was tempting
- One-time payment — lifetime access