Comparison

Trading Interview Math Trainer vs Variance

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

Head to head
About

Trading Interview Math Trainer

Features
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Prepare for trading interviews at top trading firms with the Trading Interview Math Trainer - the most dedicated mental arithmetic practice app. FIVE GAME MODES • Integers - Build your foundation with whole number calculations • Decimals - Master decimal arithmetic with all operators • Fractions - Practice fraction operations • Full - Challenge yourself with mixed arithmetic problems • Custom - Tailor difficulty to your exact needs TWO QUESTION FORMATS • Open Response - Type your answers in an open answer field • Multiple Choice - Choose from four options COMPREHENSIVE ANALYTICS • Track accuracy and speed trends over time • Identify weak areas with detailed weakness reports • View timing heatmaps to find your peak performance hours • Monitor operation-specific statistics (addition, subtraction, multiplication, division) GAMIFICATION & MOTIVATION • Earn XP and level up as you practice • Build daily streaks with streak freeze protection • Unlock achievements for reaching milestones • Compete on weekly and all-time leaderboards • Track personal bests for every mode and duration CLOUD SYNC & ACCOUNTS • Sign in with Google or Apple for seamless sync • Access your progress across all your devices • Never lose your statistics or achievements DESIGNED FOR TRADERS This app is part of the Trading Interview platform (tradinginterview.com) - built specifically for aspiring traders and finance professionals. The question difficulty and formats mirror what you can encounter in real trading firm interviews. Whether you’re preparing for your first trading interview or maintaining your mental math skills, this app provides the focused practice you need to succeed. Download now and start training!

About

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.

Highlights
  • Probability practice
  • Mental math exercises
  • Logic puzzles
  • Detailed solutions
  • Progress tracking
  • Topic-specific practice
Read full description

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

Trading Interview Math Trainer4 screens
Variance4 screens

Verdict

The call

The clearest difference is in-app purchases: Trading Interview Math Trainer at none against Variance's 2. Trading Interview Math Trainer also leads on iOS requirement (15.1 vs 26.0). Variance's advantage is update cadence (every 2 weeks vs every 5 months). On price, ads 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. Variance sells 2 in-app purchases, starting at $24.99 per month. Trading Interview Math Trainer asks for nothing beyond the download.

UpkeepUpdate frequency

Trading Interview Math Trainer ships an update every 5 months, Variance every 2 weeks. The most recent releases landed on September 18, 2026 and September 12, 2026 respectively.

Scorecard3 real differences · 7 level
Trading Interview Math Trainer versus Variance: the parameters behind the verdict, then further details
ParameterTrading Interview Math TrainerVariance
PriceFreeFree
Rating—5.0 (5 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—5 — better
Update frequencyEvery 5 monthsEvery 2 weeks — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better26.0
Further details — not scored
Size33 MB18 MB
Age rating4+12+
DeveloperTrading Interview B.V.Benjamin Kawano

In-app purchases

None

Trading Interview Math Trainer

No in-app purchases

2 purchases

Variance

Subscriptions2
  • Variance Pro Monthly$24.991 Month
  • Variance Pro Yearly$99.991 Year

Questions

Is Trading Interview Math Trainer free?
Trading Interview Math Trainer is free to download, with no in-app purchases.
Is Variance free?
Variance is free to download, with in-app purchases available.
Do Trading Interview Math Trainer or Variance have ads?
Neither Trading Interview Math Trainer nor Variance shows ads.
Which is updated more often, Trading Interview Math Trainer or Variance?
Trading Interview Math Trainer ships an update every 5 months, and Variance every 2 weeks. Most recently, Trading Interview Math Trainer was updated on September 18, 2026 and Variance on September 12, 2026.

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