Comparison

SQL Prep vs Query Dojo

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

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.

Highlights
  • 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
Features
Read full description

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.

About

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.

Highlights
  • Hands-on SQL challenges
  • Real interview questions
  • Interactive lessons
  • SQL sandbox environment
  • Progress tracking
  • Daily streaks and achievements
Features
Read full description

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

Screenshots

SQL Prep4 screens
Query Dojo4 screens

Verdict

The call

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

CostPrice · In-app purchases · Ads · Monetization

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.

ReceptionRating · Positive reviews · Number of ratings

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.

UpkeepUpdate frequency

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.

Scorecard3 real differences · 7 level
SQL Prep versus Query Dojo: the parameters behind the verdict, then further details
ParameterSQL PrepQuery Dojo
PriceFreeFree
Rating3.7 (3 ratings)5.0 (3 ratings) — better
Positive reviews0.0% of reviews100.0% of reviews — better
Number of ratings33
Update frequencyEvery 4 days — betterEvery 2 weeks
AdsNoNo
In-app purchasesYesYes
MonetizationFreemiumFreemium
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better17.6
Further details — not scored
Size6 MB9 MB
Age rating4+4+
DeveloperMustafa ErgisiRasim Salimov

Customer experience

SQL Prep

All ratings3 ratings
Positive66.7%
Neutral0.0%
Negative33.3%
Written reviews1 reviews
Positive0.0%
Neutral0.0%
Negative100.0%

Query Dojo

All ratings3 ratings
Positive100.0%
Neutral0.0%
Negative0.0%
Written reviews2 reviews
Positive100.0%
Neutral0.0%
Negative0.0%

In-app purchases

3 purchases

SQL Prep

Subscriptions2
  • SQL Generator7 Days trial$4.991 Month
  • Yearly Premium7 Days trial$29.991 Year
One-time1
  • Pro Lifetime$19.99
2 purchases

Query Dojo

Subscriptions2
  • SQL Master Monthly Subscription$7.951 Month
  • SQL Master Yearly Subscription$49.951 Year

Questions

Is SQL Prep free?
SQL Prep is free to download, with in-app purchases available.
Is Query Dojo free?
Query Dojo is free to download, with in-app purchases available.
Which has better reviews, SQL Prep or Query Dojo?
Query Dojo is rated higher. SQL Prep averages 3.7 out of 5 from 3 ratings, while Query Dojo averages 5.0 from 3 ratings.
Do SQL Prep or Query Dojo have ads?
Neither SQL Prep nor Query Dojo shows ads.
Which is updated more often, SQL Prep or Query Dojo?
SQL Prep ships an update every 4 days, and Query Dojo every 2 weeks. Most recently, SQL Prep was updated on September 24, 2026 and Query Dojo on September 19, 2026.

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