SQL Prep vs Query Dojo
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
SQL Prep
Learn SQL through interactive challenges and gamified practice. Write queries, get instant feedback, and level up your database skills. Features an AI-powered SQL generator to help you understand query patterns.
- Interactive SQL challenges
- Gamified learning with XP and streaks
- AI-powered SQL generator
- Instant feedback and explanations
- Covers fundamental to advanced SQL topics
- Interview prep mode
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Learn SQL the fun way. SQL Quiz turns database queries into an interactive game — no boring tutorials, no endless videos. Just real challenges that teach you SQL by doing. You see a table. You get a task. You write the query. If it runs correctly, you level up. Simple. In the age of AI, SQL is still the #1 skill for anyone working with data. SQL Quiz makes learning it feel like a game. HOW IT WORKS 1. See a real database table with sample data 2. Read the challenge — e.g. "Find all orders over $100" 3. Write your SQL query 4. Get instant feedback with detailed explanations 5. Earn XP, keep your streak, and track your progress TOPICS COVERED - SELECT, WHERE, ORDER BY — Start here - GROUP BY, HAVING, COUNT — Level up - JOIN, LEFT JOIN, INNER JOIN — Get serious - Subqueries & Window Functions — Go pro - Real-world interview scenarios — Boss levels AI-POWERED SQL GENERATOR Describe what you need in plain English, and our AI converts it to optimized SQL instantly. Perfect for learning query patterns and understanding complex joins. WHY SQL QUIZ? - Learn by doing, not watching - 5-minute daily practice sessions - 40+ expert-crafted challenges across all levels - AI-powered hints when you're stuck - Track your progress with XP and streaks - Interview prep mode for job readiness PERFECT FOR - Students learning databases for the first time - Career switchers moving into data analytics - Data analysts sharpening their SQL skills - Developers refreshing SQL knowledge - Anyone preparing for technical interviews FREE TO START Practice daily with free challenges. Upgrade to Pro for unlimited access and advanced topics. PRO FEATURES - Unlimited daily challenges - Advanced topics (CTEs, Window Functions) - Streak protection — never lose your progress - Priority AI-powered hints - Full interview prep mode SUBSCRIPTION INFO SQL Quiz Pro is available as a monthly ($4.99) or yearly ($39.99) auto-renewable subscription. Payment is charged to your Apple ID account at confirmation of purchase. Subscription automatically renews unless cancelled at least 24 hours before the end of the current period. Manage or cancel anytime in Settings. Terms of Use: https://mergisi.github.io/AI-SQL-Code-Generator/terms-of-use.html Privacy Policy: https://mergisi.github.io/AI-SQL-Code-Generator/privacy-policy.html Master SQL — one query at a time.
Query Dojo
Master SQL for tech interviews with hands-on challenges and interactive lessons. Practice real-world queries from top tech companies and track your progress to become job-ready.
- Hands-on SQL challenges
- Real interview questions
- Interactive lessons
- SQL sandbox environment
- Progress tracking
- Daily streaks and achievements
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Land your dream tech job. Query Dojo helps you master database queries through hands-on challenges pulled from real interviews at Meta, Google, Amazon, and Microsoft. Whether you're a student learning SQL for the first time, a data analyst sharpening your skills, or a software engineer prepping for your next interview, this app gets you job-ready. LEARN BY DOING Work through 40+ interactive lessons covering everything from SELECT basics to advanced window functions, CTEs, and subqueries. Every lesson includes hands-on coding challenges where you write real SQL that executes against real databases. INTERVIEW-READY CHALLENGES Practice 50+ questions across Easy, Medium, and Hard difficulty. Write your query, run it, and instantly see if your output matches the expected result. No hand-waving, just real practice. SQL SANDBOX Experiment freely with 4 sample databases. Test queries, explore schemas, and build confidence without limits. TRACK YOUR PROGRESS Stay motivated with daily streaks, accuracy stats, and 20+ achievements. Watch yourself go from beginner to interview-ready. Privacy: https://sql-practice.pages.dev/privacy Terms: https://sql-practice.pages.dev/terms
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Verdict
The clearest difference is review sentiment: Query Dojo at 100% against SQL Prep's 0%. Query Dojo also leads on rating (5.0 vs 3.7). SQL Prep's advantage is update cadence (every 4 days vs every 2 weeks). On price, ratings volume, ads and in-app purchases 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
Both are free to download. SQL Prep sells 3 in-app purchases, starting at $4.99 per month and Query Dojo sells 2 in-app purchases, starting at $7.95 per month. Whichever you choose, the download price is not the number that matters.
Query Dojo holds the better App Store score, 5.0 against 3.7. Both are backed by a comparable volume of ratings — 3 and 3 respectively. Written reviews point the same way: 0% of SQL Prep's written reviews are positive against 100% of Query Dojo's.
SQL Prep ships an update every 4 days, Query Dojo every 2 weeks. The most recent releases landed on September 24, 2026 and September 19, 2026 respectively.
| Parameter | SQL Prep | Query Dojo |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (3 ratings) | 5.0 (3 ratings) — better |
| Positive reviews | 0.0% of reviews | 100.0% of reviews — better |
| Number of ratings | 3 | 3 |
| Update frequency | Every 4 days — better | Every 2 weeks |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Freemium |
| Devices | iPhone, iPad | iPhone, iPad |
| Requires iOS | 16.0 — better | 17.6 |
| Further details — not scored | ||
| Size | 6 MB | 9 MB |
| Age rating | 4+ | 4+ |
| Developer | Mustafa Ergisi | Rasim Salimov |
Customer experience
SQL Prep
Query Dojo
In-app purchases
SQL Prep
- SQL Generator7 Days trial$4.991 Month
- Yearly Premium7 Days trial$29.991 Year
- Pro Lifetime$19.99
Query Dojo
- SQL Master Monthly Subscription$7.951 Month
- SQL Master Yearly Subscription$49.951 Year







