Comparison

AWS Developer (DVAC02) vs Data Engineer Cert Prep

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

Head to head
About

AWS Developer (DVAC02)

Prepare for the AWS Developer DVA-C02 certification exam with actual questions and answers. This app offers multiple study modes and a search function, with content updated regularly. It works offline and provides unlimited access to practice questions.

Highlights
  • Actual exam questions and answers
  • Multiple study modes (Preparation, Exam, Marathon)
  • Question search functionality
  • Offline access
  • Constantly updated content
  • Unlimited practice questions (free tier)
Features
Read full description

AWS Developer EXAM (DVAC02). Actual exam questions and answers for self-study. Our app is a source of accurate exam questions and answers to help you pass your exam easily and quickly! - Question content is constantly updated for FREE, so you don't have to worry about outdated questions. Application features: • Mode "Preparation" • Mode "Exam" • Mode "Marathon" • Questions search Advantages: • The application does not require an Internet connection; • Tests are always "Available". • Many modes of work with tests. This test simulator will help you prepare for the AWS Developer DVA-C02 exam study tests.. The app is free with in-app purchases. For free: In this application you will be able to pass 10 test questions an unlimited number of times. Paid: Full access to all functions will be available after payment!

About

Data Engineer Cert Prep

Features
Read full description

Pass the AWS Certified Data Engineer – Associate (DEA-C01) exam with a native, offline-first practice app built around real exam scenarios across every domain of the current exam. WHY THIS APP Most Data Engineer quiz apps are thin question dumps with no explanations or a domain mix that doesn't match the real exam. This one is built and weighted to the official DEA-C01 exam guide, and every question — not just the answer key — comes with a full explanation of why the right choice is right and the others are wrong. WHAT'S INCLUDED (FREE) - 100 exam-style questions weighted to match the official DEA-C01 domain breakdown - Every question comes with a detailed explanation referencing official AWS documentation - Choose 5, 10, or 15 questions per practice session - Track your progress, streaks, and score history right on your device - Works fully offline- study on a plane, a commute, anywhere - No account, no sign-up, no ads EXAM DOMAINS COVERED - Data Ingestion and Transformation (34%) - Kinesis, MSK, Glue ETL, DMS, Firehose, EventBridge, MWAA, Lambda - Data Store Management (26%) - S3, Redshift, DynamoDB, Aurora, Lake Formation, OpenSearch, Iceberg/Glue Data Catalog - Data Operations and Support (22%) - CloudWatch, Step Functions, EMR, Glue Data Quality, AWS Batch, Amazon Q Developer - Data Security and Governance (18%) - IAM least privilege, Lake Formation permissions, KMS, Macie, VPC endpoints BUILT FOR REAL STUDYING Every question is written as a scenario a working data engineer would actually face, with distractor answers that test common misconceptions rather than obvious wrong picks. Explanations cite the relevant AWS service behavior directly so you learn the reasoning, not just memorize a letter. WANT MORE? Djamgatech PRO bundles a bigger 150-question Data Engineer Associate bank alongside dozens of other AWS, Azure, GCP, and AI certification question banks in one app - all offline, all ad-free. Start practicing for free today and walk into your DEA-C01 exam ready.

Screenshots

AWS Developer (DVAC02)4 screens
Data Engineer Cert Prep3 screens

Verdict

The call

The clearest difference is in-app purchases: Data Engineer Cert Prep at none against AWS Developer (DVAC02)'s 1. AWS Developer (DVAC02)'s advantage is update cadence (every 3 months vs every 13 months) and iOS requirement (13.0 vs 16.0). On price, ads 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. AWS Developer (DVAC02) sells 1 one-off in-app purchase. Data Engineer Cert Prep asks for nothing beyond the download.

UpkeepUpdate frequency

AWS Developer (DVAC02) ships an update every 3 months, Data Engineer Cert Prep every 13 months. The most recent releases landed on September 10, 2026 and September 14, 2026 respectively.

Scorecard3 real differences · 6 level
AWS Developer (DVAC02) versus Data Engineer Cert Prep: the parameters behind the verdict, then further details
ParameterAWS Developer (DVAC02)Data Engineer Cert Prep
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
Update frequencyEvery 3 months — betterEvery 13 months
AdsNoNo
In-app purchasesYesNo — better
MonetizationFree with in-app purchases—
DevicesiPhone, iPodiPhone, iPad, Mac — better
Requires iOS13.0 — better16.0
Further details — not scored
Size6 MB1 MB
Age rating4+4+
DeveloperAndrey AndreyevDjamgaTech Corp

In-app purchases

1 purchases

AWS Developer (DVAC02)

One-time1
  • AWS Developer prep exam DVAC02$2.99
None

Data Engineer Cert Prep

No in-app purchases

Questions

Is AWS Developer (DVAC02) free?
AWS Developer (DVAC02) is free to download, with in-app purchases available.
Is Data Engineer Cert Prep free?
Data Engineer Cert Prep is free to download, with no in-app purchases.
Do AWS Developer (DVAC02) or Data Engineer Cert Prep have ads?
Neither AWS Developer (DVAC02) nor Data Engineer Cert Prep shows ads.
Which is updated more often, AWS Developer (DVAC02) or Data Engineer Cert Prep?
AWS Developer (DVAC02) ships an update every 3 months, and Data Engineer Cert Prep every 13 months. Most recently, AWS Developer (DVAC02) was updated on September 10, 2026 and Data Engineer Cert Prep on September 14, 2026.

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