Comparison

PDE Pro Database Engineer vs Data Engineer Exam Prep

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

Head to head
About

PDE Pro Database Engineer

Features
Read full description

PASS YOUR PROFESSIONAL CLOUD DATABASE ENGINEER EXAM 500+ practice questions 5-minute study sessions Track your progress Remove mastered questions Text-to-speech support Dark mode available WHY GET CERTIFIED? Certified Google Cloud database engineers earn up to $203K annually (Skillsoft 2024). Professional Cloud Database Engineer validates expertise in designing, managing, and troubleshooting scalable database solutions. WHAT YOU'LL MASTER: Database capacity planning and performance tuning High availability with multi-regional and zonal strategies Database connectivity with networking and encryption Managed vs unmanaged services comparison SQL and NoSQL requirements for structured and unstructured data IAM and access management for database security Monitoring with query optimization and resource contention Backup and recovery with RTO, RPO, and PITR Cost optimization and scaling strategies Database migration with zero-downtime and fallback plans Replication strategies and read replicas Generative AI and LLM database use cases STUDY ANYWHERE: Coffee breaks. Commutes. Lunch hours. Turn dead time into database engineering expertise. Download now. Pass your exam. Master Google Cloud databases.

About

Data Engineer Exam Prep

Features
Read full description

Study on your phone. Continue on desktop. Continuing study on the web applies to the existing Google Cloud Professional Data Engineer practice track. Added exams are studied in the iOS app. Access and progress remain separate for each exam. Includes 2520 practice questions across 5 exams. The total combines the study-language counts stated for each exam below. 1. Google Cloud Professional Data Engineer practice 500 practice questions · 110 key terms 5 areas: Designing data processing systems · Ingesting and processing the data · Storing the data · Preparing and using data for analysis · Maintaining and automating data workloads Languages: English, Japanese, Korean. Counts: English. 2. Databricks Certified Data Engineer Professional 500 practice questions · 160 key terms 10 areas: Developing Code for Data Processing using Python and SQL · Data Ingestion & Acquisition · Data Transformation, Cleansing, and Quality · Data Sharing and Federation · Monitoring and Alerting · Cost & Performance Optimization · Ensuring Data Security and Compliance · Data Governance · Debugging and Deploying · Data Modeling Languages: English, Korean, Japanese. Counts: English. 3. Databricks Certified Data Engineer Associate 520 practice questions · 110 key terms 7 areas: Databricks Intelligence Platform · Data Ingestion and Loading · Data Transformation and Modeling · Working with Lakeflow Jobs · Implementing CI/CD · Troubleshooting, Monitoring, and Optimization · Governance and Security Languages: English, Korean, Japanese. Counts: English. 4. Databricks Certified Associate Developer for Apache Spark 500 practice questions · 130 key terms 7 areas: Apache Spark Architecture and Components · Using Spark SQL · Developing Apache Spark DataFrame/DataSet API Applications · Troubleshooting and Tuning Apache Spark DataFrame API Applications · Structured Streaming · Using Spark Connect to deploy applications · Using Pandas API on Apache Spark Languages: English. 5. Databricks Certified Data Analyst Associate 500 practice questions · 146 key terms 9 areas: Understanding of Databricks Data Intelligence Platform · Managing Data · Importing Data · Executing queries using Databricks SQL and Databricks SQL Warehouses · Analyzing Queries · Creating Dashboards and Visualizations in Databricks · Developing, Sharing, and Maintaining AI/BI Genie spaces · Data Modeling with Databricks SQL · Securing Data Languages: English. 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: 50 / 120; 2: 59 / 120; 3: 45 / 90; 4: 50 / 90; 5: 45 / 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

PDE Pro Database Engineer3 screens
Data Engineer Exam Prep4 screens

Verdict

The call

The clearest difference is in-app purchases: PDE Pro Database Engineer at none against Data Engineer Exam Prep's 10. Data Engineer Exam Prep's advantage is update cadence (every 10 days vs every 3 months). 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. Data Engineer Exam Prep sells 10 one-off in-app purchases. PDE Pro Database Engineer asks for nothing beyond the download.

UpkeepUpdate frequency

PDE Pro Database Engineer ships an update every 3 months, Data Engineer Exam Prep every 10 days. The most recent releases landed on November 9, 2026 and November 13, 2026 respectively.

Scorecard2 real differences · 4 level
PDE Pro Database Engineer versus Data Engineer Exam Prep: the parameters behind the verdict, then further details
ParameterPDE Pro Database EngineerData Engineer Exam Prep
PriceFreeFree
Update frequencyEvery 3 monthsEvery 10 days — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.0 — better15.1
Further details — not scored
Size30 MB150 MB
Age rating4+4+
DeveloperDavy RaittCHOI SEONGMIN

In-app purchases

None

PDE Pro Database Engineer

No in-app purchases

10 purchases

Data Engineer Exam Prep

One-time10
  • Data Eng Associate 추가 구매 할인$2.49
  • GCP Data Engineer 추가 구매 할인$2.49
  • 데이터분석가 Associate 추가 구매 할인$2.49
Show 7 more
  • Data Eng Professional 추가 구매 할인$2.49
  • Spark Developer 추가 구매 할인$2.49
  • Data Eng Associate 평생 이용권$4.99
  • 데이터분석가 Associate 평생 이용권$4.99
  • Spark Developer 평생 이용권$4.99
  • Data Eng Professional 평생 이용권$4.99
  • Lifetime Access$4.99

Questions

Is PDE Pro Database Engineer free?
PDE Pro Database Engineer is free to download, with no in-app purchases.
Is Data Engineer Exam Prep free?
Data Engineer Exam Prep is free to download, with in-app purchases available.
Do PDE Pro Database Engineer or Data Engineer Exam Prep have ads?
Neither PDE Pro Database Engineer nor Data Engineer Exam Prep shows ads.
Which is updated more often, PDE Pro Database Engineer or Data Engineer Exam Prep?
PDE Pro Database Engineer ships an update every 3 months, and Data Engineer Exam Prep every 10 days. Most recently, PDE Pro Database Engineer was updated on November 9, 2026 and Data Engineer Exam Prep on November 13, 2026.

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