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

Prepare for quant interviews with focused practice in probability, mental math, sequences, and brainteasers. Variance brings quantitative training, performance comparisons, market reading, and career discovery into one app. Whether you're preparing for a trading or quant research interview, or sharpening your problem-solving skills, build a practice routine that fits your day. PRACTICE QUANTITATIVE SKILLS • Mental math and arithmetic • Probability and statistics • Expected value and conditional probability • Sequences and pattern recognition • Brainteasers and logic puzzles BUILD YOUR TRAINING ROUTINE Explore different practice modes and difficulty levels. Focus on specific topics, challenge your speed and accuracy, and review explanations in supported question modes. KNOW WHERE YOU STAND Track your performance and personal bests. Explore score distributions and percentile comparisons to understand how your results compare with other players. COMPETE AND STAY MOTIVATED Compare results on global leaderboards and work toward your next personal best. EXPLORE MARKETS AND CAREERS Read the market brief, browse finance firms, and discover quant internship and full-time opportunities through links to career resources and job boards. Built for students, aspiring traders, quant researchers, and anyone who enjoys quantitative problem-solving. Train with purpose. Prepare with Variance. Terms of Use: https://www.thequantprepapp.com/terms Privacy Policy: https://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 11 days 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 $9.99 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 11 days. The most recent releases landed on October 30, 2026 and October 31, 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 (6 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—6 — better
Update frequencyEvery 5 monthsEvery 11 days — better
AdsNoNo
In-app purchasesNo — betterYes
Monetization—Freemium
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.1 — better26.0
Further details — not scored
Size33 MB20 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 Monthly7 Days trial$9.991 Month
  • Variance Pro 6-Month$49.996 Months

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 11 days. Most recently, Trading Interview Math Trainer was updated on October 30, 2026 and Variance on October 31, 2026.

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