Comparison

Mental Math vs CaseGrade

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Mental Math

Enhance your mental math skills for consulting, investment banking, and quant interviews. Practice realistic drills, track your progress with streaks, and build confidence with adaptive exercises and exam-style sessions.

Highlights
  • Adaptive drills
  • Case math chains
  • Estimation sandbox
  • Lightning rounds
  • Interview mode
  • Exam-style sessions
  • Career-specific prep
Features
Read full description

Sharpen mental math for consulting, IB, and quant interviews. Practice fast, realistic drills with estimation‑friendly scoring, track progress with streaks and XP, and build confidence under pressure. Highlights: - Adaptive drills, case math chains, and estimation sandbox - Lightning rounds, interview mode, and exam‑style sessions - Career‑specific prep for Consulting, IB, and Quant The career-specific content requires a subscription to access, one subscription allows for the use of ANY feature of the app. Privacy Policy: https://marble-liquid-091.notion.site/Heat-Studio-LLC-Privacy-Policy-28652966b06a807282efed41b058f5dd Terms of Service: https://marble-liquid-091.notion.site/Heat-Studio-LLC-Terms-of-Service-28652966b06a80028c0deeca197b4912?source=copy_link

About

CaseGrade

Prepare for consulting interviews with adaptive drills and practice systems tailored to your target firms. Master mental math, quantitative cases, market sizing, synthesis, and frameworks. Track your progress and build the skills needed to land your offer.

Highlights
  • Adaptive practice system
  • Mental math drills
  • Quantitative case practice
  • Market sizing exercises
  • Synthesis and recommendation practice
  • Frameworks and structures
  • Progress tracking and skill reports
Read full description

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

Screenshots

Mental Math4 screens
CaseGrade4 screens

Verdict

The call

Mental Math and CaseGrade are too close to call on the numbers: across 8 compared parameters — price, rating, ratings volume and ads among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Mental Math sells 3 in-app purchases, starting at $2.99 per 7 days and CaseGrade sells 3 in-app purchases, starting at $59.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

On the App Store both sit at effectively the same score — 5.0 for Mental Math against 5.0 for CaseGrade. Both are backed by a comparable volume of ratings — 2 and 1 respectively.

ScorecardNo meaningful differences
Mental Math versus CaseGrade: the parameters behind the verdict, then further details
ParameterMental MathCaseGrade
PriceFreeFree
Rating5.0 (2 ratings)5.0 (1 ratings)
Positive reviews—100.0% of reviews
Number of ratings2 — better1
Update frequency—Every 4 months
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.115.1
Further details — not scored
Size56 MB27 MB
Age rating4+4+
DeveloperHeat Studio LLCCaseGrade LLC

Customer experience

Mental Math

All ratings2 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

CaseGrade

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews1 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

Mental Math

Subscriptions3
  • Career Pass - Weekly3 Days trial$2.997 Days
  • Career Pass - Monthly$7.991 Month
  • Career Pass - Annual$24.991 Year
3 purchases

CaseGrade

Subscriptions3
  • Ascend$59.991 Month
  • Apex$119.991 Month
  • Partner Track$299.991 Month

Questions

Is Mental Math free?
Mental Math is free to download, with in-app purchases available.
Is CaseGrade free?
CaseGrade is free to download, with in-app purchases available.
Which has better reviews, Mental Math or CaseGrade?
Mental Math and CaseGrade are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.
Do Mental Math or CaseGrade have ads?
Neither Mental Math nor CaseGrade shows ads.

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