About
Master SQL with bite-sized lessons, real-world datasets, and instant feedback. This app offers hands-on challenges and spaced repetition for effective learning, all available offline on your mobile device.
What's New in SQLlearn
1.0
April 22, 2026
Subscriptions & In-App Purchases
$4.99
Unlock Pro
One-time purchase to unlock all SQL modules/challenges.
Developer apps
FAQ
What SQL concepts does SQLlearn cover?
SQLlearn covers six core modules: SELECT statements, filtering, joins, aggregate functions, subqueries, and window functions. These are designed to build a strong foundation in SQL.
How does SQLlearn help with learning retention?
The app utilizes a spaced-repetition review queue to reinforce learned concepts, ensuring long-term retention. This method is proven effective for memorizing complex information.
Can I use SQLlearn offline?
Yes, SQLlearn is designed to be used entirely offline. All modules, datasets, and features are accessible without an internet connection, making it convenient for learning anywhere.
What kind of practice challenges are available?
SQLlearn offers over 30 hands-on challenges using real-world e-commerce, HR, and analytics data. This provides practical experience with various database scenarios.
Is SQLlearn suitable for interview preparation?
Absolutely. SQLlearn is perfect for interview prep, covering essential SQL topics and providing hands-on practice that is frequently tested in technical interviews.
What is the pricing for SQLlearn?
Module 1 of SQLlearn is free to access. All other content can be unlocked with a single Pro purchase, which is a one-time payment with no subscription required.
Does SQLlearn have ads?
No, SQLlearn is ad-free. The developer explicitly states there are no advertisements, ensuring an uninterrupted learning experience.
What devices are supported by SQLlearn?
SQLlearn is available on iPhone, iPad, and iPod. It is optimized for mobile learning across these Apple devices.
