CaseGrade vs lemma

Land your consulting offer. CaseGrade is built for candidates targeting McKinsey, Bain, BCG, Deloitte, Accenture, EY, and the rest of the MBB + Big Four pipeline. The mobile app gives you drills, frameworks, and a practice system that adapts to your target firm and round — so your prep hours go where they move the needle. What's inside • Mental Math Drills — Timed arithmetic and percentage calculations. Build the reflexes case interviewers look for in the first 30 seconds of a quantitative question. • Quantitative Case Math — Pricing, profitability, breakeven, NPV, and financial ratios. Each problem traces a realistic case setup; you practice the math that actually shows up in a BCG round two. • Market Sizing — Structured estimation problems from top-of-funnel ("How many coffee cups are sold in Chicago per day?") through segmented market builds. • Synthesis — Practice delivering CEO-ready recommendations, one-line answers, risk callouts, executive summaries, and key takeaways. The single weakest link for most candidates. • Structures & Frameworks — Drill MECE issue trees on real case prompts. Build the muscle memory for a clean structure in the first 90 seconds. • Brainstorming — Timed creative-ideation practice. A surprisingly common round-two sub-question that candidates rarely prepare for. • Learn Section — Concepts, industry primers, and framework references you can open between drills or at the start of prep. Lightweight audio explainers on the go. Adaptive practice Set your target firms and interview date once. CaseGrade surfaces the content most relevant to how that firm actually interviews — and sequences it against your calendar so you ramp naturally toward round day. Track your progress • Daily streak and comeback-freeze so one missed day doesn't erase your momentum • Percentile rank vs other candidates targeting the same firms • Best-score history on every drill • Skill report that flags the weak quadrant you should hit tomorrow Built for how you actually study Between classes. On the train. The 15 minutes before a mock. Every drill is sized for a real-life session, and your progress syncs across all your devices so you can pick up exactly where you left off. Pricing Start free. Every drill category has at least one unlocked problem. Upgrade to Ascend for 75% of the full library, or Apex / Partner Track for everything plus advanced features like Framework Builder and Speed Round. Subscriptions renew automatically; cancel anytime in your App Store settings. Privacy We collect only what's needed to run your account and track your progress. We do not sell data. Full details at casegrade.io/privacy. Support Questions, bug reports, or feature requests: support@casegrade.io or (872) 216-5699. Get in. Get an offer. Let's go. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://casegrade.io/privacy

Train like a quant. Daily. Lemma is the focused, no-fluff prep app for quantitative interviews — built for students and grads targeting Jane Street, Citadel, Optiver, Two Sigma, and the rest of the trading-firm gauntlet. WHAT'S INSIDE WITH YOUR SUBSCRIPTION • Daily sprints — bite-sized timed sets of mental math, probability, combinatorics, expected value, and market-making problems • Per-category ELO — your skill is tracked across 10 disciplines, from Novice to Expert • Adaptive difficulty — problems chosen to keep you at the edge of your level, not above or below • Hints + step-through solutions — get unstuck without giving up • Streaks, XP, leagues — habit loops without the noise • Achievements — unlock as you grind • Leaderboard — see how you stack up WHO IT'S FOR • CS / math undergrads applying to trading firms • Recent grads prepping for technical interviews • Self-learners who want a daily quantitative-thinking habit • Anyone curious about how trading interviews actually feel WHY LEMMA We strip out the gamified clutter and keep what matters: hard problems, fast iteration, real numbers on your progress. The interface borrows more from a Bloomberg terminal than a typical mobile game — monospaced metrics, hairline borders, dark by default. Most prep books drown you in 800 pages. Most courses lock you in for months. Lemma is 10 minutes a day, sharpened every day. — Lemma offers an optional auto-renewable subscription for unlimited daily sprints and premium problem sets. Subscriptions auto-renew unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in your Apple ID settings. Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://rogeru13.github.io/lemma-legal/privacy-policy/