DataDriven: Do SQL & Python
Data Engineering Practice
Only for iPhone
Free · In‑App Purchases · Designed for iPhone
iPhone
Your SQL runs against real databases. Your Python executes with real test cases. Your data models get graded. The only app for interactive data skills practice.
Write SQL. Run Python. Design data models. Every challenge runs your code and shows you where you got it right and where you didn't. Built for what data engineering interviews actually test.
SQL AT THE LEVEL THAT MATTERS
The SQL that shows up in real interviews and real production systems. You write the query, it runs against a real database, and you see feedback on every row.
PYTHON FOR DATA ENGINEERING
The patterns behind every ETL and automation workflow. You write the code. You run it. You see the result.
DATA MODELING AND DESIGN
Schema design, normalization, star schemas, and production modeling patterns. No other mobile app covers this. The interview round that separates analysts from engineers.
DAILY CHALLENGES
Fresh SQL and Python challenges every day. The app tracks your accuracy and surfaces where you need more reps.
SEE YOUR CODE EXECUTE
Watch a JOIN merge rows. Watch a GROUP BY collapse records. See your Python code run line by line. Visual execution that shows exactly how your code processes data.
WHO THIS IS FOR
- Analysts moving into data engineering roles
- Engineers building data skills
- Working data engineers keeping skills sharp
- Anyone preparing for a data engineering interview
datadriven is where you do the work.
Premium unlocks all lessons, step by step hints, and interactive database design with smart grading.
Terms of Use: https://datadriven-tech.com/terms
Privacy Policy: https://datadriven-tech.com/privacy
Ratings & Reviews
- Smarter hints that show up when you're stuck, not after you've already figured it out
- Interview prep that mirrors how real data engineering panels actually work
- Faster, smoother challenge flow so you spend more time coding and less time waiting
The developer, Galen Busch, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy .
Data Not Collected
The developer does not collect any data from this app.
Accessibility
The developer has not yet indicated which accessibility features this app supports. Learn More
Information
- Seller
- Galen Busch
- Size
- 103.5 MB
- Category
- Education
- Compatibility
Requires iOS 13.0 or later.
- iPhone
Requires iOS 13.0 or later. - iPod touch
Requires iOS 13.0 or later. - Mac
Requires macOS 11.0 or later and a Mac with Apple M1 chip or later. - Apple Vision
Requires visionOS 1.0 or later.
- Languages
- English
- Age Rating
4+
- 4+
- In-App Purchases
Yes
- Yearly Subscription $149.99
- Yearly Subscription $119.99
- Yearly Subscription $99.99
- Monthly Subscription $29.99
- Weekly Subscription $7.99
- Monthly Subscription $19.99
- Monthly Subscription $24.99
- Weekly Subscription $19.99
- Weekly Subscription $14.99
- Weekly Subscription $9.99
- Copyright
- © DataDriven, 2026