
LeetCode
DataLemur
Datacamp
HackerRank
Codecademy
PrepNPlaced
SkillVee
StrataScratch is a data science interview platform that has over 1000+ real interview questions from top tech companies like Facebook, Amazon, Google, and more.
Wheel of Names
Spin The Wheel Of Names
RANDOM.ORG
Random Wheel Spin
Wheel Decide
Wheel Spinner App
Spin The Wheel Generator
Random Data Monster is a comprehensive suite of advanced random data generation that features generating secure passwords, names, numbers and more than 30+ Google Sheets custom functions to generate random data.

Which is more popular?
Based on our record, StrataScratch seems to be more popular. It has been mentioned 4 times since March 2021.
Website, pricing, platforms and company facts side by side.
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| Website | stratascratch.com | randomdata.monster |
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Overall verdict
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Walkthroughs and reviews on video.
Practice Writing SQL Queries on StrataScratch | How to Solve SQL Queries
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External articles and on-site reviews we used to compare the two products.

StrataScratch offers free data science interview questions and continues to release interview questions when they come out from companies. This ensures that you are always practicing your data science skills on...
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Recommendations tracked on public social media and blogs since March 2021.

StrataScratch is focused on providing data analysis/science resources needed to land a job and resources for the first few years of your career. It has 600+ coding questions from real interviews where you can use SQL, python, or R. It... Source: over 3 years ago
I learned off of Mode Analytics SQL tutorial. It's free and I use it as a reference when I forget syntax. From there, my learning style is to grind on practical questions that I would get as a data analyst. So I would recommend... Source: over 3 years ago
There was a comment here about using Leetcode, Hackerrank, SQL fiddle, etc to keep learning SQL. However, if you're aim is to go into data analytics you need to go beyond learning syntax and understand edge cases and business context.... Source: over 3 years ago
Tracking Random Data Monster since Jul 2025.
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Free and easy to use spinner. Used by teachers and for raffles. Enter names, spin wheel to pick a random winner. Customize look and feel, save and share wheels.
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Practice SQL Interview Questions & Data Science Interview Questions asked by FAANG.
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DataCamp is a massive open online course (MooC) platform that helps everyone from novices to experts hone their skills with data science.
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RANDOM.ORG offers true random numbers to anyone on the Internet.
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