Comparison

Machine Learning Engineer Exam vs PDE Data Engineer Exam Prep

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

Head to head
About

Machine Learning Engineer Exam

Prepare for the GCP Professional Machine Learning Engineer certification with comprehensive quizzes and practice exams. Master ML concepts on GCP, from data preparation to model deployment and operations. Includes cheat sheets and interview questions.

Highlights
  • Hundreds of quizzes and practice exams
  • Covers ML on GCP topics
  • Machine Learning Basics and Advanced
  • Cheat sheets and interview questions
  • Latest ML news
  • Scorecard and countdown timer
Features
Read full description

Practice for the Professional Machine Learning Engineer exam with questions written to the current exam guide, which renamed the platform it covers: Vertex AI is now the Gemini Enterprise Agent Platform. Most prep material still uses the old names. This bank uses the new ones throughout. 100 PRACTICE QUESTIONS INCLUDED, 150 WITH THE UNLOCK The app includes 100 questions across all six exam domains. A one-time in-app purchase unlocks the full bank of 150 questions. Your progress and history are kept. ALL SIX EXAM DOMAINS - Architecting low-code AI solutions: BigQuery ML, Agent Platform AutoML, Model Garden, the industry APIs - Collaborating to manage data and models: Feature Store, Workbench, Colab Enterprise, Experiments, ML Metadata - Scaling prototypes: custom training, hyperparameter tuning, TPUs and GPUs, data versus model parallelism, fine-tuning foundation models - Serving and scaling: batch versus online inference, Model Registry, custom containers, canary and A/B rollouts, private endpoints - Automating and orchestrating: Agent Platform Pipelines, Managed Service for Apache Airflow, Ray, CI/CD/CT - Monitoring: data drift, concept drift, training-serving skew, feature attribution drift, Model Armor, responsible AI EVERY OPTION EXPLAINED, NOT JUST THE RIGHT ONE Each question explains why the correct answer is correct and why each distractor is wrong. When several options look plausible, knowing why the near-miss fails is most of the skill. WRITTEN TO THE REAL WEIGHTINGS The exam guide weights its six sections from 13% to 21%. The bank is balanced to match, so your practice time lands where the exam spends its questions. WORKS OFFLINE Everything ships inside the app. Nothing streams and there is no account, so it works the same in airplane mode as on full signal. ALSO INCLUDED - Exam Pace Timer: an optional countdown that never locks you out or auto-submits. - Daily study reminder, if you want one, scheduled on your device. - Progress tracking: streaks, best scores and full history, stored on your device. - No account, no sign-up, no ads. This app is an independent study aid and is not affiliated with, endorsed by, or sponsored by Google LLC. Google Cloud is a trademark of Google LLC.

About

PDE Data Engineer Exam Prep

Features
Read full description

PASS YOUR PROFESSIONAL DATA 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 data engineers earn up to $203K annually (Skillsoft 2024). Professional Data Engineer validates expertise in designing, building, and optimizing data infrastructure for enterprise applications. WHAT YOU'LL MASTER: Data security with IAM, encryption, and key management Data governance with project and dataset architecture Data pipelines with Dataflow, Apache Beam, and Cloud Data Fusion Pipeline orchestration with Cloud Composer and Workflows Storage solutions with BigQuery, BigLake, AlloyDB, Bigtable, and Spanner Data warehouse design and normalization strategies Data lakes with Dataplex and cost controls Batch and streaming transformations with windowing BigQuery ML for feature engineering and model training RAG preparation with unstructured data embeddings Analytics Hub for data sharing Performance optimization and cost management Disaster recovery and fault tolerance strategies STUDY ANYWHERE: Coffee breaks. Commutes. Lunch hours. Turn dead time into data engineering expertise. Download now. Pass your exam. Master Google Cloud data engineering.

Screenshots

Machine Learning Engineer Exam3 screens
PDE Data Engineer Exam Prep3 screens

Verdict

The call

The clearest difference is in-app purchases: PDE Data Engineer Exam Prep at none against Machine Learning Engineer Exam's 1. PDE Data Engineer Exam Prep also leads on update cadence (every 3 months vs every 28 months). On price, ads, device support and iOS requirement there is nothing between them.

Scored on Price ยท Rating ยท Positive reviews ยท Number of ratings ยท Update frequency ยท Ads ยท In-app purchases ยท Monetization ยท Best chart rank ยท Devices ยท Requires iOS

CostPrice ยท In-app purchases ยท Ads ยท Monetization

Both are free to download. Machine Learning Engineer Exam sells 1 one-off in-app purchase. PDE Data Engineer Exam Prep asks for nothing beyond the download.

UpkeepUpdate frequency

Machine Learning Engineer Exam ships an update every 28 months, PDE Data Engineer Exam Prep every 3 months. The most recent releases landed on November 7, 2026 and October 31, 2026 respectively.

Scorecard2 real differences ยท 6 level
Machine Learning Engineer Exam versus PDE Data Engineer Exam Prep: the parameters behind the verdict, then further details
ParameterMachine Learning Engineer ExamPDE Data Engineer Exam Prep
PriceFreeFree
Positive reviews100.0% of reviewsโ€”
Update frequencyEvery 28 monthsEvery 3 months โ€” better
AdsNoNo
In-app purchasesYesNo โ€” better
MonetizationPaidโ€”
DevicesiPhone, iPadiPhone, iPad, iPod โ€” better
Requires iOS16.015.0 โ€” better
Further details โ€” not scored
Size1 MB27 MB
Age rating4+4+
DeveloperDjamgaTech CorpDavy Raitt

In-app purchases

1 purchases

Machine Learning Engineer Exam

One-time1
  • Full Question Bank$9.99
None

PDE Data Engineer Exam Prep

No in-app purchases

Questions

Is Machine Learning Engineer Exam free?
Machine Learning Engineer Exam is free to download, with in-app purchases available.
Is PDE Data Engineer Exam Prep free?
PDE Data Engineer Exam Prep is free to download, with no in-app purchases.
Do Machine Learning Engineer Exam or PDE Data Engineer Exam Prep have ads?
Neither Machine Learning Engineer Exam nor PDE Data Engineer Exam Prep shows ads.
Which is updated more often, Machine Learning Engineer Exam or PDE Data Engineer Exam Prep?
Machine Learning Engineer Exam ships an update every 28 months, and PDE Data Engineer Exam Prep every 3 months. Most recently, Machine Learning Engineer Exam was updated on November 7, 2026 and PDE Data Engineer Exam Prep on October 31, 2026.

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