SQLZoo - SQL Learn & Practice

The best way to learn SQL is to write it.

SQLZoo brings guided lessons, runnable exercises, quizzes, and a searchable reference together in one app. Start with SELECT, then work through JOINs, aggregates, subqueries, window functions, and table design at your own pace.

Practice with real queries
• Follow 18 tutorial chapters with 328 SQL exercises across lessons, assessments, and challenges.
• Write queries in the editor, inspect practice data, run your SQL, and check the result.
• Use hints and reference answers when you need a hand.
• Test your understanding with nine topic quizzes, eight assessments, and two challenges.

Build a lasting practice habit
• Get a five-question daily plan with new, review, and stretch exercises.
• Revisit questions based on your answers, mistakes, and hint use.
• Track learning days, streaks, and badges, and share a progress card.

Keep a reference close
• Search SQL notes and examples whenever you need a refresher.
• Optionally configure your own AI provider and ask about the exercise you are solving. When you send a message, the question, reference answer, hint, and your current SQL are sent to that provider. Your own API configuration is required.

If you have any questions about the app, or requests for features you would like to see, just write a short review or use the button inside the app to contact me. Get more support on https://www.whalesgrowth.top

SQLZoo Pro Subscriptions

You can subscribe for SQLZoo Pro Subscriptions to all features and content offered for purchase within the app.
SQLZoo Pro offers subscriptions. The subscription prices are:

(i) Monthly Subscription ($2.99 / Month)
(ii) Yearly Subscription ($12.99 / Year)

Payment will be charged to iTunes Account at confirmation of purchase.

Subscriptions automatically renew unless auto-renew is turned off at least 24-hours before the end of the current period. Account will be charged for renewal within 24-hours prior to the end of the current period, and identify the cost of the renewal. Subscriptions may be managed by the user and auto-renewal may be turned off by going to the user's Account Settings after purchase. The prices are in US dollars. Pricing in other countries may vary and actual charges may be converted to your local currency depending on the country of residence.

Any unused portion of a free trial period, if offered, will be forfeited when the user purchases a subscription to that publication, where applicable.

Our app is functional without purchasing an Auto-Renewable subscription, and you can use all the unlocked content after the subscription expires.

Q: How do I restore the subscriptions on new devices?
A: You can tap the 'Restore' button on the subscription page.

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