QuantQwik vs Variance
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
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.
- 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
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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
Variance
Prepare for quantitative finance interviews with this app. Practice probability, mental math, logic puzzles, and more with detailed solutions and progress tracking. Sharpen your mathematical intuition and problem-solving skills for trading and research roles.
- Probability practice
- Mental math exercises
- Logic puzzles
- Detailed solutions
- Progress tracking
- Topic-specific practice
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Variance is the ultimate quant interview prep app for aspiring traders, quant researchers, and finance professionals. Whether you're targeting a role at a hedge fund, trading firm, or just prepping for fun, Variance gives you the tools to practice the quantitative skills that top firms test — rigorously and on the go. WHAT YOU'LL PRACTICE • Probability • Mental math • Sequences & Patterns • Brainteasers & logic puzzles • Expected value FEATURES • Hundreds of problems across multiple difficulty levels • Detailed solutions and explanations for every question • Topic-by-topic practice to target your weak spots • Progress tracking to see how you improve over time • Clean, distraction-free interface built for focused study WHO IT'S FOR Variance is built for students and professionals preparing for quantitative interviews at top firms, and other top quant shops. It's also great for anyone who wants to sharpen their mathematical intuition and problem-solving speed. Prepare smarter. Interview with confidence. Download Variance today. Terms of Use: www.thequantprepapp.com/terms Privacy Policy: www.thequantprepapp.com/privacy
Screenshots
Verdict
The clearest difference is review sentiment: Variance at 100% against QuantQwik's 33%. Variance also leads on rating (5.0 vs 4.5) and update cadence (every 2 weeks vs monthly). QuantQwik's advantage is in-app purchases (none vs 2) and iOS requirement (17.6 vs 26.0). On price, ratings volume, ads and monetization model 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
Both are free to download. Variance sells 2 in-app purchases, starting at $24.99 per month. QuantQwik asks for nothing beyond the download.
Variance holds the better App Store score, 5.0 against 4.5. Both are backed by a comparable volume of ratings — 6 and 5 respectively. Written reviews point the same way: 33% of QuantQwik's written reviews are positive against 100% of Variance's.
QuantQwik ships an update monthly, Variance every 2 weeks. The most recent releases landed on September 16, 2026 and September 12, 2026 respectively.
| Parameter | QuantQwik | Variance |
|---|---|---|
| Price | Free | Free |
| Rating | 4.5 (6 ratings) | 5.0 (5 ratings) — better |
| Positive reviews | 33.3% of reviews | 100.0% of reviews — better |
| Number of ratings | 6 — better | 5 |
| Update frequency | Monthly | Every 2 weeks — better |
| Ads | No | No |
| In-app purchases | No — better | Yes |
| Monetization | Freemium | Freemium |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 17.6 — better | 26.0 |
| Further details — not scored | ||
| Size | 7 MB | 18 MB |
| Age rating | 4+ | 12+ |
| Developer | Shubham Tiwari | Benjamin Kawano |
Customer experience
QuantQwik
Variance
In-app purchases
QuantQwik
No in-app purchases
Variance
- Variance Pro Monthly$24.991 Month
- Variance Pro Yearly$99.991 Year







