SQL Prep vs QueryQuest
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.
QueryQuest
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Learn SQL the fun way with QueryQuest, an interactive learning app designed to take you from complete beginner to interview-ready SQL expert. LEARN BY DOING Practice real SQL queries through interactive coding exercises. Each lesson builds on the last, reinforcing concepts through hands-on practice rather than passive reading. 8 STRUCTURED LEVELS • Level 1-2: SQL Basics, SELECT, WHERE, ORDER BY, and more • Level 3: SQL Joins, INNER, LEFT, RIGHT, and FULL joins • Level 4: Advanced SQL, Subqueries, CTEs, and window functions • Level 5: SQL Logic, CASE statements and conditional logic • Level 6: SQL Tools, Indexes, views, and optimization • Level 7: Stellar Challenges, Complex real-world scenarios • Level 8: Interview Prep, Common SQL interview questions GAMIFIED LEARNING • Earn XP and gems as you progress • Maintain daily streaks to build consistent habits • Track your statistics and see how far you've come • Hearts system keeps you focused and motivated PREMIUM (PRO) Unlock all 8 chapters, unlimited hearts, unlimited hints, and unlimited gems with a single one-time purchase. No subscriptions, no recurring charges. LEARN OFFLINE All lessons and content are available offline, learn anywhere, anytime. PRIVACY FIRST Your progress is stored locally on your device. We don't collect personal data or require account registration. Whether you're a student, aspiring data analyst, software developer, or preparing for technical interviews, QueryQuest gives you the SQL skills you need. Start your quest today!
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Verdict
The clearest difference is update cadence: SQL Prep at every 4 days against QueryQuest's every 6 months. On price, ads, in-app purchases and device support 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 QueryQuest sells 7 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
SQL Prep ships an update every 4 days, QueryQuest every 6 months. The most recent releases landed on September 24, 2026 and September 30, 2026 respectively.
| Parameter | SQL Prep | QueryQuest |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (3 ratings) — better | — |
| Positive reviews | 0.0% of reviews | — |
| Number of ratings | 3 — better | — |
| Update frequency | Every 4 days — better | Every 6 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | — |
| Devices | iPhone, iPad | iPhone, iPod |
| Requires iOS | 16.0 | 15.1 — better |
| Further details — not scored | ||
| Size | 6 MB | 64 MB |
| Age rating | 4+ | 4+ |
| Developer | Mustafa Ergisi | Zheng Pan Lim |
In-app purchases
SQL Prep
- SQL Generator7 Days trial$4.991 Month
- Yearly Premium7 Days trial$29.991 Year
- Pro Lifetime$19.99
QueryQuest
- Level 3: SQL Joins$1.99
- Level 4: Advanced SQL$1.99
- Level 5: SQL Logic$2.99
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- Level 6: SQL Tools$2.99
- Level 7: Stellar Challenges$2.99
- Level 8: Interview Prep$2.99
- QueryQuest PRO: Unlock Everything$9.99








