Comparison

Professional Data Engineer vs Data_Engineering

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

Head to head
About

Professional Data Engineer

Features
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Non-Affiliation Disclaimer (Google Professional Data Engineer) This app is an independent exam preparation resource and is not affiliated with, endorsed by, or connected with Google or Google Cloud. All practice materials are created solely for learning and study purposes. Trademark Notice (Google Professional Data Engineer) Google, Google Cloud, and Google Cloud Professional Data Engineer are trademarks or registered trademarks of Google LLC.
Any references to Google Cloud exams or terminology are for identification only and do not imply official endorsement. ===== There are many questions on the web that are either outdated or wrongly answered. I am trying here to filter all those questions and provide you with a nice tool to practice the exam similar to the real-life exam as much as possible. This small app was designed with love to help you 5 things: 1. question content is updated monthly in 2026, so you don’t have to worry that these question is outdated anymore. 2. With 2 EXACT-FILTERING features, you can focus easily on questions you are making mistakes or missing. 3. Save difficult questions offline. So you can practice them later when you have free time. 4. Examination mode will help you take test like a real exam. So you will be more confident. 5. NEARLY-100% questions are packed with straightforward explanations. You will know why it is correct or wrong. No more confusing. In sum, this app is simple and straight-to-the-point like description you are reading. Have fun and enjoy the app!

About

Data_Engineering

Features
Read full description

Become a data engineer—starting exactly where you are. Data_Engineering is a complete interactive learning environment for iPhone, iPad, and Mac. Begin with basic arithmetic, first Python, files, SQL, and databases. Progress into production pipelines, data modeling, warehouses, Airflow, dbt, Spark, Kafka, cloud platforms, quality, governance, observability, and principal-level architecture. LEARN BY DOING • 40 structured courses from beginner to advanced • 400 substantive interactive lessons • 140 editable, syntax-highlighted code labs • 100 quizzes with validation and explanations • 80 architecture decisions based on real trade-offs • 80 guided concept exercises • Progressive hints that help without giving the answer away BUILD A PORTFOLIO Complete 40 practical data engineering projects: 12 Beginner, 14 Intermediate, and 14 Advanced. Every build includes an editable SQL, Python, YAML, or architecture workspace, four milestones, local checks, and a concrete outcome you can explain in an interview. YOUR PRIVATE DATA ENGINEERING TUTOR Ask a question from any lesson or project. Tutor Core can begin with basic arithmetic, define every new term, and work toward deep production trade-offs. Offline Core is included and never sends questions anywhere. Compatible devices can add private Apple on-device generation. External providers are always optional. WATCH YOUR DATA PLATFORM TAKE SHAPE Every completed lesson, course, and project milestone advances a living data-platform construction scene—from its first frame through ingestion, transformations, integration, and operational control planes. DESIGNED FOR SERIOUS PROGRESS Earn XP, build streaks, bookmark material, track role readiness, choose daily goals, switch between light and dark interfaces, and move naturally among iPhone, iPad, and Mac. SUBSCRIPTION Data_Engineering Pro includes a 14-day free introductory trial for eligible new subscribers, then renews monthly at the price shown in the app. Payment is charged to your Apple Account after confirmation. The subscription automatically renews unless cancelled at least 24 hours before the end of the current period. Manage or cancel in Apple Account subscription settings. Terms of Use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://github.com/lukekevinmclaughlin-oss/Data_Engineering/blob/main/PRIVACY.md

Screenshots

Professional Data Engineer4 screens
Data_Engineering4 screens

Verdict

The call

The clearest difference is iOS requirement: Professional Data Engineer at 10.0 against Data_Engineering's 17.0. On price, ads, in-app purchases 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. Professional Data Engineer sells 1 one-off in-app purchase and Data_Engineering sells 1 in-app purchase, starting at $1.99 per month. Whichever you choose, the download price is not the number that matters.

Scorecard1 real difference · 5 level
Professional Data Engineer versus Data_Engineering: the parameters behind the verdict, then further details
ParameterProfessional Data EngineerData_Engineering
PriceFreeFree
Update frequencyEvery 13 months—
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPodiPhone, iPad, Mac — better
Requires iOS10.0 — better17.0
Further details — not scored
Size25 MB5 MB
Age rating4+4+
DeveloperTrieu TranLuke Mclaughlin

In-app purchases

1 purchases

Professional Data Engineer

One-time1
  • Unlock complete App$9.99
1 purchases

Data_Engineering

Subscriptions1
  • Data_Engineering Pro14 Days trial$1.991 Month

Questions

Is Professional Data Engineer free?
Professional Data Engineer is free to download, with in-app purchases available.
Is Data_Engineering free?
Data_Engineering is free to download, with in-app purchases available.
Do Professional Data Engineer or Data_Engineering have ads?
Neither Professional Data Engineer nor Data_Engineering shows ads.

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