Comparison

SQL Prep vs Process Scheduling

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

Process Scheduling

Features
Read full description

Process Scheduling is an independent study app for learners who want focused practice on CPU scheduling, operating system fundamentals, and real exam-style reasoning. Built for students, interview candidates, self-learners, and anyone reviewing OS concepts, the app turns Process Scheduling into a structured daily practice routine. - 160 questions across Fundamentals, Practical Skills, Common Pitfalls, and Advanced Concepts - FSRS spaced-repetition intervals to review at the right time - Weak-point heatmap to show topics that need attention - Daily challenge for consistent study - Mock exams for timed review and readiness checks - Every question includes an explanation - Offline practice, no login required Use it to review scheduling algorithms, turnaround time, waiting time, response time, preemption, queues, fairness, starvation, and common calculation traps. Independent study app for Process Scheduling practice. Not affiliated with, endorsed by, or sponsored by any company, certification body, exam operator, or vendor. All trademarks belong to their respective owners. Privacy: Practice offline, no login required.

Screenshots

SQL Prep4 screens
Process Scheduling4 screens

Verdict

The call

The clearest difference is in-app purchases: Process Scheduling at none against SQL Prep's 3. On price, ads, device support and iOS requirement 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. Process Scheduling asks for nothing beyond the download.

Scorecard1 real difference · 9 level
SQL Prep versus Process Scheduling: the parameters behind the verdict, then further details
ParameterSQL PrepProcess Scheduling
PriceFreeFree
Rating3.7 (3 ratings) — better—
Positive reviews0.0% of reviews—
Number of ratings3 — better—
Update frequencyEvery 5 days—
AdsNoNo
In-app purchasesYesNo — better
MonetizationFreemium—
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS16.015.1 — better
Further details — not scored
Size6 MB38 MB
Age rating4+4+
DeveloperMustafa ErgisiAFTW LLC

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

Process Scheduling

No in-app purchases

Questions

Is SQL Prep free?
SQL Prep is free to download, with in-app purchases available.
Is Process Scheduling free?
Process Scheduling is free to download, with no in-app purchases.
Do SQL Prep or Process Scheduling have ads?
Neither SQL Prep nor Process Scheduling shows ads.

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