Comparison

Interview Master vs Art of Stat

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

Head to head
About

Interview Master

Practice data science interviews with AI-powered simulations and daily quizzes. Receive instant feedback on your answers and track your progress to build confidence and deepen your understanding of complex topics.

Highlights
  • Real-time AI interview simulations
  • AI-evaluated daily quizzes
  • Instant feedback on answers
  • Progress tracking
  • Detailed question explanations
  • Community sharing features
Features
Read full description

Get Ready for Interview Master: Data Science – Now with Real-Time AI Interviews and Daily Quizzes! Prepare for your data science interviews while having fun with our AI-powered app. Now you can practice in two powerful ways: Real-Time Interview Mode: Simulate real interviews with AI, speak naturally, and receive instant feedback on your answers — just like a real recruiter session. AI-Evaluated Daily Quizzes: Solve new questions every day across all skill levels, from beginner to expert. Improve your problem-solving skills, strengthen your communication, and build confidence with every session. After completing 15 questions, evaluate your level with OpenAI-powered insights that highlight weak points and show you exactly how to improve. What You’ll Love About the App Consistent Learning: Engage with diverse questions and daily practice to stay sharp and continuously improve your readiness for real interviews. For Everyone: Questions range from easy to hard, suitable for learners at any level. Track Your Progress: See how you’re improving and identify areas that need attention. Deepen Your Understanding: Get detailed explanations for every question to strengthen your grasp of complex topics. Real-Time Interview Feedback: Experience simulated interviews and gain personalized, AI-driven suggestions to enhance your communication and technical skills. Join the Community: Share your achievements, progress, and tips with other learners preparing for data science interviews. Expert-Crafted Content: Our quizzes and interviews are designed to reflect real-world data science challenges. Start Your Daily Learning Journey Download now and make learning part of your everyday routine. Step up your game for data science interviews and join a global community of learners just like you. Ready to challenge yourself? Download Interview Master: Data Science today!

About

Art of Stat

Master statistics and data science with interactive modules covering everything from basic concepts to advanced machine learning. Explore data, understand distributions, and perform complex analyses with guided, step-by-step learning. Import your own data or use pre-built datasets for hands-on practice.

Highlights
  • Interactive statistics modules
  • Data exploration and visualization
  • Probability distributions
  • Statistical inference and hypothesis testing
  • Regression analysis
  • Machine learning methods
  • Resampling techniques
Features
Read full description

The Art of Stat app covers all your statistics needs—from core concepts and probability distributions to data exploration, inference, modeling, and prediction. Use pre‑implemented datasets, import your own CSV/Excel files or - for small datasets - provide them directly. Created by an expert college professor with many years of experience teaching Statistics & Data Science. Better than AI: a guided, step‑by‑step learning experience—from summary statistics and visualizations to understanding statistical methods and outputs, including stunning visualizations. (YouTube channel coming soon!) Try it free: 7‑day trial with no credit card or subscription required. The app includes seven modules: - EXPLORE DATA Summary statistics, contingency tables, correlations, and rich visualizations: bar/pie charts, histograms, boxplots (including side‑by‑side), dotplots, and interactive scatterplots with color‑by‑variable. - DISTRIBUTIONS Interactively explore probabilities and percentiles for key distributions (Normal, Student‑t, Binomial, and more). Includes simulation tools. - CONCEPTS Central Limit Theorem (means/proportions), correlation and regression, confidence‑interval coverage, and Type I/II errors with power visualization. - INFERENCE Confidence intervals and hypothesis tests for proportions and means (one/two samples, independent/dependent), Chi‑square tests, and ANOVA. - REGRESSION Simple, multiple, and logistic regression; inference for parameters (SEs, CIs, p‑values); predictions; and striking interaction visualizations. - MACHINE LEARNING Supervised and unsupervised methods with train/test split, visualizations, predictions, heatmaps, and accuracy metrics including confusion matrices. - RESAMPLING Bootstrap CIs and permutation tests for means, medians, proportions, correlation, slope, and Chi‑square independence. Includes a Data Editor if you want to to create your own, smaller datasets. Works offline — perfect for exams or low‑connectivity environments. The standard Apple Terms of Use (EULA) apply for any subscription offered in the app. Access the link below to obtain the EULA: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Screenshots

Interview Master4 screens
Art of Stat4 screens

Verdict

The call

The clearest difference is update cadence: Interview Master at fortnightly against Art of Stat's every 3 months. Interview Master also leads on rating (4.8 vs 4.4) and iOS requirement (12.0 vs 16.4). Art of Stat's advantage is monetization model (free vs free with in-app purchases) and review sentiment (100% vs 88%). On price, ratings volume, ads and in-app purchases 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. Interview Master sells 1 in-app purchase, starting at $3.99 per month and Art of Stat sells 4 in-app purchases, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Interview Master holds the better App Store score, 4.8 against 4.4. Both are backed by a comparable volume of ratings — 8 and 13 respectively. Written reviews complicate that: 88% of Interview Master's written reviews are positive against 100% of Art of Stat's, so the app with the better star average is not the one people write more warmly about.

UpkeepUpdate frequency

Interview Master ships an update fortnightly, Art of Stat every 3 months. The most recent releases landed on October 20, 2026 and October 30, 2026 respectively.

Scorecard5 real differences · 5 level
Interview Master versus Art of Stat: the parameters behind the verdict, then further details
ParameterInterview MasterArt of Stat
PriceFreeFree
Rating4.8 (8 ratings) — better4.4 (13 ratings)
Positive reviews87.5% of reviews100.0% of reviews — better
Number of ratings813 — better
Update frequencyFortnightly — betterEvery 3 months
AdsNoNo
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree — better
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS12.0 — better16.4
Further details — not scored
Size36 MB69 MB
Age rating4+4+
DeveloperWowso Inc.Bernhard Klingenberg

Customer experience

Interview Master

All ratings8 ratings
Positive87.5%
Neutral12.5%
Negative0.0%
Written reviews8 reviews
Positive87.5%
Neutral12.5%
Negative0.0%

Art of Stat

All ratings12 ratings
Positive91.7%
Neutral0.0%
Negative8.3%
Written reviews7 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Interview Master

Subscriptions1
  • IM: Data Science$3.991 Month
4 purchases

Art of Stat

Subscriptions3
  • Art of Stat: Monthly$1.991 Month
  • Art of Stat: Six Months$6.996 Months
  • Art of Stat: Annual$9.991 Year
One-time1
  • Art of Stat: Lifetime$14.99

Questions

Is Interview Master free?
Interview Master is free to download, with in-app purchases available.
Is Art of Stat free?
Art of Stat is free to download, with in-app purchases available.
Which has better reviews, Interview Master or Art of Stat?
Interview Master is rated higher. Interview Master averages 4.8 out of 5 from 8 ratings, while Art of Stat averages 4.4 from 13 ratings.
Do Interview Master or Art of Stat have ads?
Neither Interview Master nor Art of Stat shows ads.
Which is updated more often, Interview Master or Art of Stat?
Interview Master ships an update fortnightly, and Art of Stat every 3 months. Most recently, Interview Master was updated on October 20, 2026 and Art of Stat on October 30, 2026.

Other comparisons