Comparison

Database Query Logic vs CompTIA Linux+·Server+·Cloud+

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

Head to head
About

Database Query Logic

Features
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Database Query Logic is an independent study app for building confidence with query reasoning, SQL behavior, joins, filters, aggregation, NULL handling, subqueries, indexes, transactions, and edge cases. Designed for beginners, students, developers, analysts, and interview candidates, it turns 160 focused questions into repeatable practice across Fundamentals, Practical Skills, Common Pitfalls, and Advanced Concepts. - FSRS spaced-repetition intervals - Weak-point heatmap to spot gaps - Daily challenge for steady progress - Mock exams for timed review - Explanation included with every question - Offline practice for study anywhere - No account or login required Practice offline, no login required. Your study flow is built for private, independent preparation. Independent study app for Database Query Logic practice. Not affiliated with, endorsed by, or sponsored by any company, certification body, exam operator, or vendor. All trademarks belong to their respective owners.

About

CompTIA Linux+·Server+·Cloud+

Features
Read full description

Keep studying across your phone, tablet and desktop. Use your phone on the move and a tablet or desktop when you want more room to study. Connect the same StudyCert account to continue your learning in the app and on the desktop web. Includes 1536 practice questions across 3 exams. 1. Prepare for CompTIA Linux+ (XK0-006) with 536 practice questions and 108 key terms. Study coverage · 5 areas: System Management · Services and User Management · Security · Automation, Orchestration, and Scripting · Troubleshooting Content languages: English. Counts: English materials. 2. Prepare for CompTIA Server+ with 500 practice questions and 159 key terms. Study coverage · 4 areas: Server Hardware Installation and Management · Server Administration · Security and Disaster Recovery · Troubleshooting Content languages: English, Japanese. Counts: English materials. 3. Prepare for CompTIA Cloud+ with 500 practice questions and 116 key terms. Study coverage · 6 areas: Cloud Architecture · Deployment · Operations · Security · DevOps Fundamentals · Troubleshooting Content languages: English, Japanese. Counts: English materials. 1. Learn the basic terms Use flashcards for meanings, exam context and selection criteria. Mark known and unfamiliar terms for focused review. 2. Practice and read the explanations Study by exam-specific set, domain or difficulty. Read answer and option explanations; use unfinished and wrong-answer filters, shuffle, a timer and session resume. Practice in sets of 50 questions for each exam. 3. Review mistakes Revisit bookmarks, recent errors and repeated mistakes. Use glossary reports, weak-area analysis and study history to plan revision. 4. Check readiness with a timed mock Use each exam’s settings below, then review results, domain scores and mistakes. Mock questions / time limit (minutes), by exam: 1: 90 / 90; 2: 90 / 90; 3: 90 / 90 Tools that fit your study routine Audio study and autoplay are optional. Listen to terms and meanings and adjust repeats and pauses. Continue your routine with a study calendar, weekly goals, reminders and themes. Content, features, languages and paid access are specific to each exam. Check the included content and price before purchasing. This is an independent study aid, not an official, affiliated or endorsed app of any exam administrator or certification body. Exam names and trademarks belong to their respective owners.

Screenshots

Database Query Logic4 screens
CompTIA Linux+·Server+·Cloud+4 screens

Verdict

The call

The clearest difference is in-app purchases: Database Query Logic at none against CompTIA Linux+·Server+·Cloud+'s 6. 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. CompTIA Linux+·Server+·Cloud+ sells 6 one-off in-app purchases. Database Query Logic asks for nothing beyond the download.

Scorecard1 real difference · 5 level
Database Query Logic versus CompTIA Linux+·Server+·Cloud+: the parameters behind the verdict, then further details
ParameterDatabase Query LogicCompTIA Linux+·Server+·Cloud+
PriceFreeFree
Update frequency—Every 5 days
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.115.1
Further details — not scored
Size38 MB178 MB
Age rating4+4+
DeveloperAFTW LLCCHOI SEONGMIN

In-app purchases

None

Database Query Logic

No in-app purchases

6 purchases

CompTIA Linux+·Server+·Cloud+

One-time6
  • CompTIA Server Add-on Discount$2.49
  • CompTIA Cloud+ Add-on Discount$2.49
  • CompTIA Linux+ Add-on Discount$3.49
Show 3 more
  • CompTIA Server+ SK0-005$4.99
  • CompTIA Cloud+ CV0-004$4.99
  • Lifetime Access$6.99

Questions

Is Database Query Logic free?
Database Query Logic is free to download, with no in-app purchases.
Is CompTIA Linux+·Server+·Cloud+ free?
CompTIA Linux+·Server+·Cloud+ is free to download, with in-app purchases available.
Do Database Query Logic or CompTIA Linux+·Server+·Cloud+ have ads?
Neither Database Query Logic nor CompTIA Linux+·Server+·Cloud+ shows ads.

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