Comparison

QuantQwik vs Millennium Problems

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

Head to head
About

QuantQwik

This app offers cognitive training and mental math drills specifically designed for quantitative finance candidates. It simulates the pressure and structure of real interview assessments, focusing on speed, precision, and decision-making skills.

Highlights
  • Cognitive, mental math, and problem-solving assessments
  • Simulates interview timing and pressure
  • Fast arithmetic drills
  • Attention and cognitive control tasks
  • Memory and spatial reasoning challenges
  • Risk-assessment mini games
Features
Read full description

QuantQwik is the first iOS app built specifically for quantitative candidates, offering a complete set of cognitive, mental math, and problem-solving assessments inspired by the types of tests used in modern quantitative finance interviews. Candidates preparing for roles at firms like Jane Street, Optiver, IMC Trading, SIG, HRT, Citadel, and Two Sigma will find training that resembles the timing, pressure, and structure of real industry screens. QuantQwik brings together fast arithmetic drills, attention-control tasks, spatial reasoning challenges, memory tests, and risk-assessment mini games into one clean and polished platform. Unlike typical brain training apps, QuantQwik focuses on the exact cognitive skills that matter in quant interviews: speed, precision, numerical intuition, focus, working memory, and decision-making under uncertainty. Inside the app, users can practice a wide range of assessments. Mental math and numerical speed are trained through Quick Calc, 80 in 8, Percent Pro, Fraction Duel, and Number Sense. Attention and cognitive control are developed through Arrow Storm, Lightning Tap, and Spot the Switch. Memory and spatial reasoning are strengthened through Memory Matrix, 3D Mental Rotation, and Tower of Hanoi. Decision-making and risk evaluation are trained through Balloon Risk, which is inspired by behavioral assessment tools used in trading evaluations. The experience is designed to feel premium and focused. The interface uses smooth animations, refined typography, no ads, and intuitive visuals. All data is synced through iCloud, and the app is optimized for both iPhone and iPad. Performance metrics update as you train, showing accuracy, speed, streaks, reaction times, and personal bests for every assessment. Whether you are practicing for mental-math rounds, cognitive screens, or fast-paced numerical tasks, QuantQwik gives you structured preparation built around quant expectations. Free users have access to the essential assessments. A premium subscription unlocks all twelve assessments, the full statistics dashboard, custom practice reminders, and future premium features. QuantQwik is ideal for quant trading and research candidates, STEM students, competitive exam takers, and anyone who wants to improve cognitive performance in a measurable way. --- SUBSCRIPTION INFORMATION QuantQwik Premium offers two auto-renewing subscription options: • Monthly Subscription: Billed monthly, cancel anytime • Yearly Subscription: Billed annually, cancel anytime Subscription benefits include: • Access to all 12 premium assessments • Advanced performance analytics • Practice reminders and notifications • Full iCloud sync across devices Payment will be charged to your iTunes Account at confirmation of purchase. Subscription automatically renews unless auto-renew is turned off at least 24 hours before the end of the current period. Your account will be charged for renewal within 24 hours prior to the end of the current period. You can manage and cancel your subscriptions by going to your account settings on the App Store after purchase. Terms of Use: https://quantqwik.com/terms Privacy Policy: https://quantqwik.com/privacy

About

Millennium Problems

Explore seven unsolved mathematical mysteries, each with a million-dollar prize. This app adapts content for all skill levels, from middle schoolers to doctoral researchers, with interactive 3D visualizations and built-in quizzes. Learn at your own pace, offline, with no ads or subscriptions.

Highlights
  • Explains seven major unsolved math problems
  • Content adapts to skill level (Grade 6 to Graduate)
  • Interactive 3D visualizations
  • Built-in quizzes with XP and badges
  • Offline functionality
  • Optional biometric lock
Features
Read full description

Can you solve a problem worth $1,000,000? The Clay Mathematics Institute has offered a million-dollar prize for each of seven unsolved mathematical problems — and nobody has claimed them yet. Millennium Problems brings these mysteries to life for everyone, from curious 11-year-olds to doctoral researchers. SEVEN LEGENDARY PROBLEMS • P vs NP — Is finding as hard as checking? • Riemann Hypothesis — Where do prime numbers hide? • Yang-Mills & Mass Gap — Why do particles have mass? • Navier-Stokes — Can we predict turbulent fluids? • Hodge Conjecture — What shapes are built from algebra? • Birch & Swinnerton-Dyer — How many solutions does an equation have? • Poincaré Conjecture — The shape of the universe (SOLVED!) EVERY SKILL LEVEL Choose your grade — from Grade 6 to Graduate — and the content adapts instantly. The same problem is explained with simple analogies for a middle schooler and rigorous proofs for a PhD student. INTERACTIVE 3D VISUALISATIONS Every problem comes with a real-time Three.js visualisation. Watch elliptic curves rotate, Riemann zeros appear on the critical line, and fluid particle fields swirl — all rendered natively on your device. BUILT-IN QUIZZES Test your understanding with 5 questions per problem per grade level. Earn XP, track your streak, and collect badges as you explore. WORKS OFFLINE No account. No subscription. No ads. Everything runs locally on your device. OPTIONAL BIOMETRIC LOCK Protect your progress with Face ID, Touch ID, or fingerprint — entirely optional. Whether you're a student looking for a challenge, a teacher seeking engaging material, or a mathematician revisiting the classics, Millennium Problems meets you where you are. Clay Mathematics Institute · $7,000,000 in unclaimed prizes · Since 2000

Screenshots

QuantQwik4 screens
Millennium Problems4 screens

Verdict

The call

The clearest difference is update cadence: Millennium Problems at every 4 days against QuantQwik's monthly. Millennium Problems also leads on rating (5.0 vs 4.6) and monetization model (free vs freemium). QuantQwik's advantage is ratings volume (8 vs 1). On price, ads, in-app purchases and device support there is nothing between them.

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. Neither carries in-app purchases, so what you see is what you pay.

ReceptionRating · Positive reviews · Number of ratings

Millennium Problems holds the better App Store score, 5.0 against 4.6. That said, the two scores are not equally well evidenced: QuantQwik has 8 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

QuantQwik ships an update monthly, Millennium Problems every 4 days. The most recent releases landed on October 20, 2026 and October 9, 2026 respectively.

Scorecard5 real differences · 5 level
QuantQwik versus Millennium Problems: the parameters behind the verdict, then further details
ParameterQuantQwikMillennium Problems
PriceFreeFree
Rating4.6 (8 ratings)5.0 (1 ratings) — better
Positive reviews33.3% of reviews—
Number of ratings8 — better1
Update frequencyMonthlyEvery 4 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFreemiumFree — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS17.615.0 — better
Further details — not scored
Size7 MB9 MB
Age rating4+4+
DeveloperShubham TiwariLoic Fonkam

In-app purchases

None

QuantQwik

No in-app purchases

None

Millennium Problems

No in-app purchases

Questions

Is QuantQwik free?
QuantQwik is free to download, with no in-app purchases.
Is Millennium Problems free?
Millennium Problems is free to download, with no in-app purchases.
Which has better reviews, QuantQwik or Millennium Problems?
Millennium Problems is rated higher. QuantQwik averages 4.6 out of 5 from 8 ratings, while Millennium Problems averages 5.0 from 1 ratings.
Do QuantQwik or Millennium Problems have ads?
Neither QuantQwik nor Millennium Problems shows ads.
Which is updated more often, QuantQwik or Millennium Problems?
QuantQwik ships an update monthly, and Millennium Problems every 4 days. Most recently, QuantQwik was updated on October 20, 2026 and Millennium Problems on October 9, 2026.

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