Comparison

Data Engineer Pro Prep 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

Data Engineer Pro Prep

Features
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This application is an independent exam preparation resource and is not affiliated with, endorsed by, sponsored by, or associated with Google LLC or any of its subsidiaries. GCP-DPE (Google Cloud Professional Data Engineer) is a registered trademark of Google LLC. Prepare confidently for the Google Professional Data Engineer (GCP-DPE) exam. GCP-DPE Practice provides hundreds of carefully crafted practice questions. ◆ COMPREHENSIVE COVERAGE • practice sets covering all exam domains ◆ REALISTIC EXAM EXPERIENCE • Timed practice mode simulating the 120-minute exam • Single and multiple-choice questions in exam format • Exam readiness score to track your progress ◆ SMART STUDY TOOLS • Detailed explanations for every question • Spaced-repetition flashcards powered by FSRS algorithm • Bookmarks for quick review • Personal notes on any question • Per-domain accuracy to identify weak areas ◆ MULTILINGUAL • Available in English, Japanese, Korean, German, and Portuguese ◆ PRIVACY & OFFLINE • Works completely offline — no internet required • No ads, no tracking Start with free practice sets. Unlock all sets with a one-time purchase.

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

Data Engineer Pro Prep4 screens
Data_Engineering4 screens

Verdict

The call

The clearest difference is iOS requirement: Data Engineer Pro Prep at 13.0 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. Data Engineer Pro Prep 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
Data Engineer Pro Prep versus Data_Engineering: the parameters behind the verdict, then further details
ParameterData Engineer Pro PrepData_Engineering
PriceFreeFree
Update frequencyEvery 3 weeks—
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad, iPod, Mac — betteriPhone, iPad, Mac
Requires iOS13.0 — better17.0
Further details — not scored
Size86 MB5 MB
Age rating4+4+
DeveloperAITYTECHLuke Mclaughlin

In-app purchases

1 purchases

Data Engineer Pro Prep

One-time1
  • Premium - Lifetime$3.99
1 purchases

Data_Engineering

Subscriptions1
  • Data_Engineering Pro14 Days trial$1.991 Month

Questions

Is Data Engineer Pro Prep free?
Data Engineer Pro Prep 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 Data Engineer Pro Prep or Data_Engineering have ads?
Neither Data Engineer Pro Prep nor Data_Engineering shows ads.

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