Comparison

Interview Master vs Learn R

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

Learn R

Master R programming for data analysis and data science with an AI-powered mobile tutor. Practice coding, debug errors, and generate code with AI assistance. Analyze real datasets and save your projects.

Highlights
  • AI-powered learning paths
  • Built-in R code editor and console
  • Smart AI debugging and error explanation
  • AI-generated R code from plain English
  • Live data analysis with real datasets
  • Save and organize R projects
  • Integrated learning notebook
Features
Read full description

Learn R from scratch — no experience needed. Bite-sized R lessons, a real code editor on your phone, and an AI mentor that answers your questions in seconds. Built for complete beginners, students and career switchers. WHY LEARN R? • R is an in-demand skill — a strong addition to any resume • Learn by doing: every lesson mixes short theory with hands-on practice • Build real foundations you can use in projects, work and interviews • Start from zero — every concept is explained in plain language WHAT YOU'LL LEARN • R fundamentals — the core concepts, step by step • The essential building blocks used in real-world R work • Practical techniques you can apply right away • Common mistakes — and how to avoid them • Hands-on exercises after every topic • Advanced topics to keep growing beyond the basics EVERYTHING YOU NEED TO LEARN R • AI Mentor — stuck on a concept or an error? Ask anything and get a clear answer in seconds • 100+ bite-sized lessons (5–10 minutes each) — built for real life, not lecture halls • Real code editor — write and run R code right on your phone • Quizzes and coding challenges after every topic to lock in what you learn • Weekly Code Challenge — compete with learners around the world • Certificate of completion — pass the final exam and prove your skills • Streaks, progress tracking and smart reminders to keep you consistent • Learn on the go — lessons load fast and keep working on flaky connections • App available in 22 languages WHO IT'S FOR • Complete beginners taking their first steps • Students who want extra practice alongside classes • Career switchers building job-ready skills • Anyone curious about R Part of CoddyKit — a family of 40+ coding apps trusted by 100,000+ learners worldwide. Free to start: your first course is free, with a daily AI Mentor allowance. Pro unlocks every course, removes ads and gives you unlimited AI Mentor. Download Learn R: Data Analysis & Code and write your first line of R today. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://www.coddykit.com/terms/privacy-policy

Screenshots

Interview Master4 screens
Learn R4 screens

Verdict

The call

The clearest difference is ads: Interview Master at none against Learn R's shown. Interview Master also leads on ratings volume (8 vs 1) and iOS requirement (12.0 vs 15.1). Learn R's advantage is rating (5.0 vs 4.8). On price, update cadence, in-app purchases 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

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 Learn R sells 4 in-app purchases, starting at $3.99 per 7 days. Whichever you choose, the download price is not the number that matters.

ReceptionRating · Positive reviews · Number of ratings

Learn R holds the better App Store score, 5.0 against 4.8. That said, the two scores are not equally well evidenced: Interview Master has 8 ratings behind it against 1, so its average is the more settled of the two.

UpkeepUpdate frequency

Interview Master ships an update fortnightly, Learn R every 3 weeks. The most recent releases landed on June 9, 2026 and September 9, 2026 respectively.

Scorecard4 real differences · 6 level
Interview Master versus Learn R: the parameters behind the verdict, then further details
ParameterInterview MasterLearn R
PriceFreeFree
Rating4.8 (8 ratings)5.0 (1 ratings) — better
Positive reviews87.5% of reviews—
Number of ratings8 — better1
Update frequencyFortnightly — betterEvery 3 weeks
AdsNo — betterYes
In-app purchasesYesYes
MonetizationFree with in-app purchasesFree with in-app purchases
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS12.0 — better15.1
Further details — not scored
Size36 MB65 MB
Age rating4+4+
DeveloperWowso Inc.MEHMET CANKER (TR)

Customer experience

Interview Master

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

Learn R

All ratings1 ratings
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

1 purchases

Interview Master

Subscriptions1
  • IM: Data Science$3.991 Month
4 purchases

Learn R

Subscriptions3
  • Weekly Subscription$3.997 Days
  • Monthly Subscription$4.991 Month
  • Yearly Subscription$8.901 Year
One-time1
  • Lifetime Subscription$19.90

Questions

Is Interview Master free?
Interview Master is free to download, with in-app purchases available.
Is Learn R free?
Learn R is free to download, with in-app purchases available.
Which has better reviews, Interview Master or Learn R?
Learn R is rated higher. Interview Master averages 4.8 out of 5 from 8 ratings, while Learn R averages 5.0 from 1 ratings.
Do Interview Master or Learn R have ads?
Learn R shows ads; Interview Master does not.
Which is updated more often, Interview Master or Learn R?
Interview Master ships an update fortnightly, and Learn R every 3 weeks. Most recently, Interview Master was updated on June 9, 2026 and Learn R on September 9, 2026.

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