LeakCode vs LeetCode Premium

What LeetCode Premium Actually Unlocks

The free tier of LeetCode is already quite good. Premium primarily adds four things: company-tagged question sets, premium filter options (e.g. filter by company, difficulty, and acceptance rate simultaneously), access to editorial solutions for every problem, and mock interview sessions that simulate OA-style timed environments.

Company question sets are the feature most candidates pay for. LeetCode Premium tags roughly 200 companies and shows you which problems those companies have asked in recent interviews. This is genuinely valuable. The limitation is that these tags are updated infrequently and the dataset covers only one dimension: the coding problem itself. There is no behavioral question data, no system design question data, and no round-by-round breakdown.

Premium is worth it primarily if you need editorial solutions (which teach you optimal approaches you might not derive independently) or if you want the mock interview experience. The company tags are useful but incomplete.

Where LeakCode Goes Deeper

LeakCode does not replace the LeetCode coding environment. There is no code submission, no judge, no editorial walkthrough. What LeakCode provides is a different layer of intelligence: what questions real candidates actually reported being asked, across all question types, at a specific company in a specific role and round.

• 7 sources vs 1. LeakCode aggregates reports from 1Point3Acres, Blind, Glassdoor, GeeksforGeeks, Reddit, LeetCode discussions, and the 1p3a OJ catalog. LeetCode Premium covers only LeetCode's own tagging system. Cross-source confirmation is a stronger signal than any single source.
• 60,000+ entries vs ~3,000 problems. LeetCode has roughly 3,000 coding problems total. LeakCode has 60,000+ entries covering coding problems, behavioral questions, system design questions, PM questions, data science questions, and take-home projects. The scope is much wider.
• Daily updates vs infrequent tagging. LeakCode runs a daily scrape pipeline. A question reported on Blind this week can appear in LeakCode search results within 24-48 hours. LeetCode Premium company tags are updated on an irregular schedule, sometimes months behind real hiring patterns.
• 2,000+ companies vs ~200. LeetCode Premium covers roughly 200 companies in its tag system. LeakCode covers 2,000+ companies, including quant finance firms, European tech companies, and niche startups that appear frequently on 1p3a and Glassdoor but not in LeetCode's system.
• Round-level data. LeakCode's interview round pages tell you what a specific company asks in a specific round. LeetCode Premium does not distinguish between phone screen, OA, and on-site coding rounds.

What LeetCode Premium Does Better

• Code execution and judge. Write code, submit, get a verdict. This is not something LeakCode does. Practicing actual code under time pressure requires a judge environment.
• Editorial solutions. For candidates who get stuck on a problem and want to understand the optimal approach, LeetCode Premium editorials are the best structured resource available. The explanations walk through time and space complexity.
• Mock interview mode. The timed mock interview experience simulates OA conditions. For candidates who struggle with time pressure, practicing in this environment is distinctly useful. LeakCode has no equivalent.
• Established community. LeetCode's discussion threads for every problem are extensive, with multiple language solutions, edge case discussions, and interviewer commentary. This community resource has years of accumulated signal.

Side-by-Side Comparison

The Optimal Workflow Using Both

The most effective prep stack uses both tools at different phases. Start with LeakCode to understand the intelligence layer: what a specific company actually asks, what round structure looks like, and which problem types are currently in rotation. Then use LeetCode Premium to build coding ability on those specific problem types, with access to editorials when you get stuck.

1. Research phase (LeakCode). Look up your target company on LeakCode. Review the most frequently reported coding, behavioral, and system design questions. Note which algorithms come up. Check the company page for role-specific data.
2. Practice phase (LeetCode Premium). Search the LeetCode problem list for the company. Use Premium filters to focus on the problem types you identified in the research phase. Practice with the judge. Read editorials for any problem you cannot solve in 35 minutes.
3. Final week (LeakCode). Return to LeakCode and filter to the most recent reports (past 60-90 days) for your target company. Confirm whether the pattern has shifted since you started prep.

Where Each Tool Fits

LeetCode Premium fits candidates who need editorial explanations, timed mock practice, and a structured problem library with community discussion. It is a practice tool and the best one in its category.

LeakCode fits candidates who are targeting specific companies and need to know what is actually being asked right now, across all question types and rounds, from real candidate reports. See LeakCode pricing and data sources for more detail. If you want to see what a company actually tests, browse companies on LeakCode.