Comparison

SQL Prep vs Notes

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 exercises. Practice writing queries on real database tables, receive instant feedback, and track your progress. An AI-powered generator helps you understand query patterns and complex joins.

Highlights
  • Interactive SQL challenges
  • Gamified learning experience
  • AI-powered SQL generator
  • Real database table practice
  • Instant feedback and explanations
  • Progress tracking with XP and streaks
  • Interview preparation 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

Notes

Features
Read full description

Create HTML and Markdown learning documents with AI, or import materials in formats such as HTML, Markdown, PDF, and images. While reading, you can highlight, annotate, and organize key information with ease. Important content can be converted into memory cards with one tap, and AI can also help you generate cards or create card decks automatically, turning scattered learning materials into a structured personal knowledge base that is easy to manage, revisit, and build upon. With organized categories, interactive cards, data charts, and check-in records, you can clearly track your learning process and make every moment of reading, organizing, and accumulating knowledge visible.

Screenshots

SQL Prep4 screens
Notes4 screens

Verdict

The call

The clearest difference is in-app purchases: Notes at none against SQL Prep's 3. SQL Prep's advantage is iOS requirement (16.0 vs 18.0). On price, update cadence, ads 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. SQL Prep sells 3 in-app purchases, starting at $4.99 per month. Notes asks for nothing beyond the download.

UpkeepUpdate frequency

Both ship on a similar rhythm, roughly every 5 days. The most recent releases landed on November 8, 2026 and October 31, 2026 respectively.

Scorecard2 real differences · 8 level
SQL Prep versus Notes: the parameters behind the verdict, then further details
ParameterSQL PrepNotes
PriceFreeFree
Rating3.7 (3 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings3 — better—
Update frequencyEvery 5 daysEvery 5 days
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.0 — better18.0
Further details — not scored
Size6 MB151 MB
Age rating4+4+
DeveloperMustafa Ergisi磊 石

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
None

Notes

No in-app purchases

Questions

Is SQL Prep free?
SQL Prep is free to download, with in-app purchases available.
Is Notes free?
Notes is free to download, with no in-app purchases.
Do SQL Prep or Notes have ads?
Neither SQL Prep nor Notes shows ads.
Which is updated more often, SQL Prep or Notes?
SQL Prep ships an update every 5 days, and Notes every 5 days. Most recently, SQL Prep was updated on November 8, 2026 and Notes on October 31, 2026.

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