Comparison

PDE Data Engineer Exam Prep vs AI, ML & Data Cert 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 Data Engineer Exam Prep

Features
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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.

About

AI, ML & Data Cert Exam Prep

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Break into AI and data engineering - and prove it. AI & Data Cert Exam Prep is the first iOS app to bundle the industry's fastest-growing certifications with a full study system: questions, mock exams, flashcards, Reels, and hands-free audio, all offline. WHAT YOU GET • 66,584 practice questions, every one with a written explanation • Full-length, timed mock exams matched to each blueprint • 16,500 spaced-repetition flashcards • 3,300 swipeable Reels - bite-size concepts for fast review • Hands-free Audio Mode - learn while you commute or work out • 4,400 concept & glossary cards • Objective-weighted analytics that pinpoint weak areas • 100% offline after download EXAMS COVERED (one purchase unlocks all 11) • AWS Certified AI Practitioner (AIF-C01) - foundational AI/ML, generative AI, responsible AI, and AWS AI services. • AWS Certified Machine Learning Engineer – Associate (MLA-C01) - data prep, model development, deployment and orchestration, monitoring, and security. • Google Cloud Professional Data Engineer - design, build, and operationalize data-processing systems on GCP. • Databricks Certified Associate Developer for Apache Spark - Spark architecture, the DataFrame API, Spark SQL, and structured streaming. • Databricks Machine Learning Professional - experimentation, MLOps, and model deployment on Databricks. • SnowPro Core - Snowflake architecture, performance, data loading, protection, and sharing. • dbt Analytics Engineer - building, testing, and governing dbt models and transformations. • NVIDIA-Certified Associate: AI Infrastructure & Operations (NCA-AIIO) • NVIDIA-Certified Associate: Generative AI LLMs (NCA-GENL) • NVIDIA-Certified Associate: Generative AI Multimodal (NCA-GENM) • NVIDIA-Certified Professional: Generative AI (NCP-GENL) WHY THIS APP The AI and data hiring wave is here, but prep material is scattered across PDFs and paywalled courses. This app puts every exam in one place with a study system built for retention - drill questions, flip flashcards, swipe Reels, and listen on the go. Every question explains WHY, so concepts stick. HOW IT WORKS 1. Choose an exam and take a quick diagnostic to see where you stand. 2. Drill questions by domain and read the rationale on every one. 3. Reinforce with flashcards, Reels, and Audio Mode between sessions. 4. Take full timed mocks until you're consistently above passing. BUILT FOR THE REAL EXAM Every mock mirrors the official blueprint - question style, domain weighting, and timing - so exam day feels familiar. Detailed score reports break performance down by domain, so you always know what to review next. WHO IT'S FOR • Engineers and analysts moving into ML, GenAI, and data platforms • Cloud pros adding AWS, Google Cloud, Snowflake, Databricks, or NVIDIA credentials • Anyone future-proofing their career with AI and data skills TRY IT FREE 3 days of complete access - every exam, every feature. Then a single unlock covers the whole bundle; no per-exam paywalls. WHY LEARNERS CHOOSE US • One purchase unlocks all 11 exams • Study on iPhone, iPad, and Mac with progress synced across all three • Fully offline - no ads, no interruptions, no selling your data • Kept current with the latest exam objectives COMMON QUESTIONS Do I need a subscription? Start with 3 days of full access, then one unlock covers every exam - no per-exam fees. Does it work offline? Yes - download once and study with no signal. Is the content current? It tracks the latest published exam objectives. Get certified on the skills every employer wants. Download today. SUBSCRIPTION & LEGAL A subscription auto-renews unless canceled at least 24 hours before the period ends; your Apple ID is charged for renewal. Manage or cancel anytime in App Store settings. Privacy Policy: https://c3rt.com/privacy/ Terms of Use (EULA): https://c3rt.com/terms-of-service/

Screenshots

PDE Data Engineer Exam Prep3 screens
AI, ML & Data Cert Exam Prep4 screens

Verdict

The call

The clearest difference is in-app purchases: PDE Data Engineer Exam Prep at none against AI, ML & Data Cert Exam Prep's 4. PDE Data Engineer Exam Prep also leads on iOS requirement (15.0 vs 18). AI, ML & Data Cert Exam Prep's advantage is update cadence (daily vs every 3 months). On price, ads and device support there is nothing between them.

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

CostPrice Ā· In-app purchases Ā· Ads Ā· Monetization

Both are free to download. AI, ML & Data Cert Exam Prep sells 4 in-app purchases, starting at $19.99 per month. PDE Data Engineer Exam Prep asks for nothing beyond the download.

UpkeepUpdate frequency

PDE Data Engineer Exam Prep ships an update every 3 months, AI, ML & Data Cert Exam Prep daily. The most recent releases landed on October 11, 2026 and October 10, 2026 respectively.

Scorecard3 real differences Ā· 3 level
PDE Data Engineer Exam Prep versus AI, ML & Data Cert Exam Prep: the parameters behind the verdict, then further details
ParameterPDE Data Engineer Exam PrepAI, ML & Data Cert Exam Prep
PriceFreeFree
Update frequencyEvery 3 monthsDaily — better
AdsNoNo
In-app purchasesNo — betterYes
DevicesiPhone, iPad, iPodiPhone, iPad, Mac
Requires iOS15.0 — better18
Further details — not scored
Size27 MB16 MB
Age rating4+4+
DeveloperDavy RaittSunny Dasari

In-app purchases

None

PDE Data Engineer Exam Prep

No in-app purchases

4 purchases

AI, ML & Data Cert Exam Prep

Subscriptions4
  • AI, ML & Data Cert Monthly$19.991 Month
  • AI, ML & Data Cert 3 Months$39.993 Months
  • AI, ML & Data Cert 6 Months$39.996 Months
Show 1 more
  • AI, ML & Data Cert Yearly$99.991 Year

Questions

Is PDE Data Engineer Exam Prep free?
PDE Data Engineer Exam Prep is free to download, with no in-app purchases.
Is AI, ML & Data Cert Exam Prep free?
AI, ML & Data Cert Exam Prep is free to download, with in-app purchases available.
Do PDE Data Engineer Exam Prep or AI, ML & Data Cert Exam Prep have ads?
Neither PDE Data Engineer Exam Prep nor AI, ML & Data Cert Exam Prep shows ads.
Which is updated more often, PDE Data Engineer Exam Prep or AI, ML & Data Cert Exam Prep?
PDE Data Engineer Exam Prep ships an update every 3 months, and AI, ML & Data Cert Exam Prep daily. Most recently, PDE Data Engineer Exam Prep was updated on October 11, 2026 and AI, ML & Data Cert Exam Prep on October 10, 2026.

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