Comparison

AWS DEA vs DEA 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

AWS DEA

Features
Read full description

Prepare for the AWS Certified Data Engineer Associate (DEA-C01) exam with realistic practice questions, exam mode, review mode, explanations, bookmarks, and performance tracking. Study anytime with offline access, review weak areas, and build confidence before exam day. FEATURES • Realistic exam simulation with timed mode • Practice mode for focused, untimed study • Detailed explanations for every question • Bookmark questions for quick review • Performance tracking by exam domain • Offline access — study anywhere, no internet required • Cloud sync — sign in with Google to back up your progress PREMIUM SUBSCRIPTION Dojo Exam offers an auto-renewable annual subscription to unlock the full question bank. • Subscription name: Annual Auto-Renew • Duration: 1 year • Price: See in-app pricing for your region • Payment is charged to your Apple ID account at confirmation of purchase • Subscription automatically renews unless cancelled at least 24 hours before the end of the current period • Your account will be charged for renewal within 24 hours prior to the end of the current period • You can manage and cancel your subscription in your Apple ID account settings after purchase • Any unused portion of a free trial period, if offered, will be forfeited when you purchase a subscription ACCOUNT & DATA • Sign in with Google to sync progress across devices • Delete your account and all associated data anytime from Settings → Delete Account Terms of Use (EULA): https://www.apple.com/legal/internet-services/itunes/dev/stdeula/ Privacy Policy: https://dojo-exam-production.up.railway.app/privacy

About

DEA Data Engineer Exam Prep

Features
Read full description

Study on your phone. Continue on desktop. Use your phone on the move and a tablet or desktop when you want more room to study. Connect the same StudyCert account to continue your learning in the app and on the desktop web. Continuing study on the web applies to the existing Data Engineer Associate · DEA-C01 practice track. Added exams are studied in the iOS app. Access and progress remain separate for each exam. Includes 1816 practice questions across 4 exams. The total combines the study-language counts stated for each exam below. 1. Prepare for Data Engineer Associate · DEA-C01 practice with 516 practice questions and 160 key terms. Study coverage · 4 areas: Data Ingestion and Transformation · Data Store Management · Data Operations and Support · Data Security and Governance Study languages: English, Japanese, Korean. Counts use English materials. 2. Prepare for Certified Six Sigma Green Belt (CSSGB) Examination with 400 practice questions and 144 key terms. Study coverage · 6 areas: Overview: Six Sigma and the Organization · Define Phase · Measure Phase · Analyze Phase · Improve Phase · Control Phase Study languages: English. Counts use English materials. 3. Prepare for Certified Six Sigma Yellow Belt examination with 300 practice questions and 152 key terms. Study coverage · 5 areas: Six Sigma Fundamentals · Define Phase · Measure Phase · Analyze Phase · Improve and Control Phases Study languages: English. Counts use English materials. 4. Prepare for Certified Six Sigma Black Belt examination with 600 practice questions and 160 key terms. Study coverage · 9 areas: Organization-Wide Planning and Deployment · Organizational Process Management and Measures · Team Management · Define · Measure · Analyze · Improve · Control · Design for Six Sigma (DFSS) Framework and Methodologies Study languages: English. Counts use English materials. 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-set sizes vary by exam: 50 or 110 questions. 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: 65 / 130; 2: 110 / 270; 3: 90 / 138; 4: 165 / 258 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

AWS DEA4 screens
DEA Data Engineer Exam Prep4 screens

Verdict

The call

The clearest difference is update cadence: DEA Data Engineer Exam Prep at every 5 days against AWS DEA's every 2 weeks. On price, ads, in-app purchases 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 DEA sells 1 in-app purchase, starting at $14.99 per year and DEA Data Engineer Exam Prep sells 8 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

AWS DEA ships an update every 2 weeks, DEA Data Engineer Exam Prep every 5 days. The most recent releases landed on November 9, 2026 and November 13, 2026 respectively.

Scorecard1 real difference · 5 level
AWS DEA versus DEA Data Engineer Exam Prep: the parameters behind the verdict, then further details
ParameterAWS DEADEA Data Engineer Exam Prep
PriceFreeFree
Update frequencyEvery 2 weeksEvery 5 days — better
AdsNoNo
In-app purchasesYesYes
DevicesiPhone, iPad, iPodiPhone, iPad, iPod
Requires iOS15.115.1
Further details — not scored
Size33 MB165 MB
Age rating4+4+
DeveloperTutorials Dojo Pte. Ltd.CHOI SEONGMIN

In-app purchases

1 purchases

AWS DEA

Subscriptions1
  • Annual Premium$14.991 Year
8 purchases

DEA Data Engineer Exam Prep

One-time8
  • Six Sigma Yellow Belt 추가 구매 할인$1.69
  • AWS DEA Data Engineer 추가 구매 할인$2.49
  • Six Sigma Black Belt 추가 구매 할인$2.49
Show 5 more
  • Six Sigma Green Belt 추가 구매 할인$2.49
  • Six Sigma Yellow Belt 평생 이용권$3.49
  • Six Sigma Black Belt 평생 이용권$4.99
  • Six Sigma Green Belt 평생 이용권$4.99
  • DEA Lifetime Access$4.99

Questions

Is AWS DEA free?
AWS DEA is free to download, with in-app purchases available.
Is DEA Data Engineer Exam Prep free?
DEA Data Engineer Exam Prep is free to download, with in-app purchases available.
Do AWS DEA or DEA Data Engineer Exam Prep have ads?
Neither AWS DEA nor DEA Data Engineer Exam Prep shows ads.
Which is updated more often, AWS DEA or DEA Data Engineer Exam Prep?
AWS DEA ships an update every 2 weeks, and DEA Data Engineer Exam Prep every 5 days. Most recently, AWS DEA was updated on November 9, 2026 and DEA Data Engineer Exam Prep on November 13, 2026.

Other comparisons