Comparison

Ace SQL Interviews 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

Ace SQL Interviews

Features
Read full description

Ace SQL Interviews helps you prepare for SQL, Data Engineering, Data Analytics, Data Science, Database Design, and Performance Tuning interviews with an expertly curated collection of questions and answers. Whether you're a student, aspiring data professional, or experienced engineer preparing for your next opportunity, Ace SQL Interviews provides focused content designed to strengthen your technical knowledge and interview readiness. TOPICS COVERED - SQL Interview Questions - Data Engineering - Data Analytics - Data Science - Database Design - Performance Tuning - Additional Data & Database Concepts WHY CHOOSE ACE SQL INTERVIEWS? - Expertly curated interview-focused questions - Clear and concise explanations - Covers beginner to advanced topics - Designed for self-paced learning - Suitable for students and professionals - Access expertly curated questions covering a wide range of concepts frequently evaluated in technical interviews. Prepare smarter, strengthen your knowledge, and build confidence for your next SQL, Data Engineering, Analytics, or Data Science interview. ___________ Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://aityl.com/privacy-policy-2.html

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

Walk into your SQL interview ready. Query Dojo is SQL interview practice that fits in a few minutes a day. Drill the classic questions, rehearse under a real interview clock, and see exactly what is wrong when a query fails. PRACTICE THE CLASSIC QUESTIONS 85 interview-style SQL challenges, from finding the runner-up salary to top earners per department, monthly retention, login streaks, running totals and medians. Every query runs on a real database, right on your phone. REHEARSE UNDER A REAL CLOCK Timed mock interviews: 25 minutes, 4 questions, no hints. Finish with a readiness score out of 100, so you know where you stand before the real thing. SEE EXACTLY WHY AN ANSWER IS WRONG Every run is checked against the expected result. When it is off, you see what is missing or extra, from columns to rows. Hints and full solutions are there when you are stuck. BUILD QUERIES WITHOUT A KEYBOARD Tap tiles to build real queries, put lines in the right order, or type from scratch. RELEARN WHAT YOU FORGOT 79 bite-size lessons, from SELECT and JOINs to window functions, CTEs, gaps and islands, and finding the median. A PLAN FOR YOUR LEVEL Tell us where you are and get a 4-week belt plan with the topics to focus on first. EARN YOUR BLACK BELT Every challenge and lesson moves you up, from white belt to black belt and beyond, with streaks to keep you consistent. A PLAYGROUND FOR EVERYTHING ELSE Run any SQL against 4 sample databases. Every run is rolled back, so experiment freely. Query Dojo Premium is an auto-renewing subscription, billed monthly or yearly. Payment is charged to your Apple ID at confirmation. It renews automatically unless canceled at least 24 hours before the end of the current period, and you can manage or cancel it in your App Store account settings. Terms: https://querydojo.pages.dev/terms Privacy: https://querydojo.pages.dev/privacy

Screenshots

Ace SQL Interviews4 screens
Query Dojo4 screens

Verdict

The call

The clearest difference is iOS requirement: Ace SQL Interviews at 15.0 against Query Dojo's 17.6. On price, update cadence, 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. Ace SQL Interviews sells 2 one-off in-app purchases 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.

UpkeepUpdate frequency

Ace SQL Interviews ships an update every 2 weeks, Query Dojo fortnightly. The most recent releases landed on September 17, 2026 and October 31, 2026 respectively.

Scorecard1 real difference · 9 level
Ace SQL Interviews versus Query Dojo: the parameters behind the verdict, then further details
ParameterAce SQL InterviewsQuery Dojo
PriceFreeFree
Rating—5.0 (3 ratings) — better
Positive reviews—100.0% of reviews
Number of ratings—3 — better
Update frequencyEvery 2 weeksFortnightly — better
AdsNoNo
In-app purchasesYesYes
Monetization—Freemium
DevicesiPhone, iPad, iPod — betteriPhone, iPad
Requires iOS15.0 — better17.6
Further details — not scored
Size22 MB9 MB
Age rating4+4+
DeveloperSandyarani LagishettiRasim Salimov

In-app purchases

2 purchases

Ace SQL Interviews

One-time2
  • Unlock Unlimited SQL Ace$14.99
  • Unlock All Questions & Answers$19.99
2 purchases

Query Dojo

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

Questions

Is Ace SQL Interviews free?
Ace SQL Interviews is free to download, with in-app purchases available.
Is Query Dojo free?
Query Dojo is free to download, with in-app purchases available.
Do Ace SQL Interviews or Query Dojo have ads?
Neither Ace SQL Interviews nor Query Dojo shows ads.
Which is updated more often, Ace SQL Interviews or Query Dojo?
Ace SQL Interviews ships an update every 2 weeks, and Query Dojo fortnightly. Most recently, Ace SQL Interviews was updated on September 17, 2026 and Query Dojo on October 31, 2026.

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