Comparison

GCP Data Engineer Prep 2026 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

GCP Data Engineer Prep 2026

Features
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The Professional Data Engineer exam asks you to think like the person who owns the pipeline — which sink, which windowing, which BigQuery layout, and why. Certisimo trains exactly that judgment, one exam-style question at a time. WHAT'S INSIDE • 200 exam-style questions across 4 practice sets, written for the Google Cloud Professional Data Engineer exam • Covers what the exam covers: BigQuery, Dataflow, Pub/Sub, Dataproc, Bigtable, Cloud Composer and more TRAIN, THEN TEST Training mode gives you instant feedback as you answer. Test mode runs like the real thing: a countdown clock, no hints, a score at the end, and a review of everything you skipped or missed. STOP GUESSING WHETHER YOU ARE READY Your readiness score is computed from your own answers, so you always know how close you are — and what to do next. EVERYTHING IN YOUR POCKET • Save the questions that matter and annotate them with notes • Search the entire bank instantly • A complete history of every session you have run • 100% offline, iPhone and iPad, light and dark — and no sign-up, ever ALREADY BOUGHT THIS APP? Premium is yours — free, forever. It unlocks by itself the first time you open this update: nothing to buy, nothing to restore, no account to create. Your saved questions, your notes and your full history are all still here. GO FURTHER WITH PREMIUM Certisimo Premium unlocks the full explanation behind every answer — why the right choice wins, not just which letter it was — plus unlimited exam simulations, the complete Insights breakdown (weak, hard, new and strong questions) and an ad-free experience. • Weekly $5.99 · Yearly $34.99 with a 14-day free trial · Lifetime $79.99 one-time purchase Download Certisimo and walk into the Data Engineer exam already knowing how it feels. Certisimo is an independent study aid and is not affiliated with, endorsed by, or sponsored by Google LLC. Weekly and Yearly Premium are auto-renewable subscriptions; Lifetime is a one-time purchase. Subscriptions automatically renew unless cancelled at least 24 hours before the end of the current period. Payment is charged to your Apple ID account, and you can manage or cancel your subscription in your App Store account settings at any time. Terms of Use: https://certisimo-app.web.app/terms Privacy Policy: https://certisimo-app.web.app/privacy

About

Data Engineer Exam Prep

Features
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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

GCP Data Engineer Prep 20264 screens
Data Engineer Exam Prep4 screens

Verdict

The call

The clearest difference is in-app purchases: GCP Data Engineer Prep 2026 at none against Data Engineer Exam Prep's 10. Data Engineer Exam Prep's advantage is ads (none vs shown) and iOS requirement (15.1 vs 26.0). On price, update cadence 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 Exam Prep sells 10 one-off in-app purchases. GCP Data Engineer Prep 2026 asks for nothing beyond the download.

UpkeepUpdate frequency

GCP Data Engineer Prep 2026 ships an update every 8 days, Data Engineer Exam Prep every 10 days. The most recent releases landed on November 12, 2026 and November 13, 2026 respectively.

Scorecard3 real differences · 3 level
GCP Data Engineer Prep 2026 versus Data Engineer Exam Prep: the parameters behind the verdict, then further details
ParameterGCP Data Engineer Prep 2026Data Engineer Exam Prep
PriceFreeFree
Update frequencyEvery 8 days — betterEvery 10 days
AdsYesNo — better
In-app purchasesNo — betterYes
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS26.015.1 — better
Further details — not scored
Size16 MB150 MB
Age rating4+4+
DeveloperSPIDER SERVICE SRLCHOI SEONGMIN

In-app purchases

None

GCP Data Engineer Prep 2026

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 GCP Data Engineer Prep 2026 free?
GCP Data Engineer Prep 2026 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 GCP Data Engineer Prep 2026 or Data Engineer Exam Prep have ads?
GCP Data Engineer Prep 2026 shows ads; Data Engineer Exam Prep does not.
Which is updated more often, GCP Data Engineer Prep 2026 or Data Engineer Exam Prep?
GCP Data Engineer Prep 2026 ships an update every 8 days, and Data Engineer Exam Prep every 10 days. Most recently, GCP Data Engineer Prep 2026 was updated on November 12, 2026 and Data Engineer Exam Prep on November 13, 2026.

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