Comparison

AWS DEA vs 1Z0

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
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Glue, Redshift, Kinesis, Athena — the Data Engineer Associate exam walks the whole path your data takes through AWS. Certisimo walks it with you, question by question. WHAT'S INSIDE • 260 exam-style questions across 4 practice sets, written for the AWS Data Engineer Associate exam • The ground you will train on: AWS Glue, Redshift, Kinesis, Athena, S3 and Lake Formation TWO WAYS TO PRACTICE In training mode, answers come back with immediate feedback. In test mode you face the clock — timed, scored, no hints — and finish with a full review of what you skipped or got wrong. MEASURE YOUR PROGRESS Insights turns your history into a readiness score, so how close you are to a passing level is always visible. MADE FOR HOW YOU STUDY • Save questions, add your own notes, find anything with search • Full session history, so you can watch your scores climb • Works completely offline — study on the plane, the metro, anywhere • iPhone and iPad, light and dark, no account and no sign-up 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 Ā· Yearly $34.99 with a 14-day free trial Ā· Lifetime $79.99 one-time purchase Get Certisimo today — and make the Data Engineer exam the least surprising part of your certification. Certisimo is an independent study aid and is not affiliated with, endorsed by, or sponsored by Amazon Web Services, Inc. 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

1Z0

Features
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PASS YOUR ORACLE CERTIFIED PROFESSIONAL: JAVA SE 17 DEVELOPER EXAM Master Java SE 17 with 500+ practice questions designed to help you earn your OCP certification on the first attempt. 500+ practice questions 5-minute study sessions Track your progress Remove mastered questions Text-to-speech support Dark mode available WHY GET CERTIFIED? Oracle Certified Professional: Java SE 17 Developer professionals earn up to $203K annually. This elite Oracle credential validates your expertise and sets you apart in the competitive software development job market. WHAT YOU'LL MASTER: • Primitive Types, Wrapper Classes and Autoboxing • String, StringBuilder and Text Blocks • Date-Time API including LocalDate, LocalTime, ZonedDateTime, Period and Duration • Controlling Program Flow with Switch Expressions, Loops and Pattern Matching • Java Object-Oriented Approach including Constructors, Inheritance and Polymorphism • Handling Exceptions and Error Recovery • Working with Arrays and Collections • Streams and Lambda Expressions • Java Platform Module System and Packaging • Managing Concurrent Code Execution • Java I/O API and File Handling • Accessing Databases Using JDBC • Implementing Localization for Global Applications • Sealed Classes and Records • Pattern Matching for instanceof • Math API and Numeric Promotion Rules STUDY ANYWHERE: Coffee breaks. Commutes. Lunch hours. Turn dead time into Software Development expertise. Download now. Pass your exam. Master Software Development.

Screenshots

AWS DEA4 screens
1Z03 screens

Verdict

The call

The clearest difference is in-app purchases: 1Z0 at none against AWS DEA's 3. 1Z0 also leads on ads (none vs shown) and update cadence (every 2 months vs every 5 months). On price 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. AWS DEA sells 3 in-app purchases, starting at $5.99 per 7 days. 1Z0 asks for nothing beyond the download.

UpkeepUpdate frequency

AWS DEA ships an update every 5 months, 1Z0 every 2 months. The most recent releases landed on November 9, 2026 and October 31, 2026 respectively.

Scorecard4 real differences Ā· 2 level
AWS DEA versus 1Z0: the parameters behind the verdict, then further details
ParameterAWS DEA1Z0
PriceFreeFree
Update frequencyEvery 5 monthsEvery 2 months — better
AdsYesNo — better
In-app purchasesYesNo — better
DevicesiPhone, iPadiPhone, iPad, iPod — better
Requires iOS26.015.0 — better
Further details — not scored
Size54 MB30 MB
Age rating4+4+
DeveloperSPIDER SERVICE SRLDavy Raitt

In-app purchases

3 purchases

AWS DEA

Subscriptions2
  • Premium Weekly$5.997 Days
  • Premium Yearly14 Days trial$34.991 Year
One-time1
  • Premium Lifetime$79.99
None

1Z0

No in-app purchases

Questions

Is AWS DEA free?
AWS DEA is free to download, with in-app purchases available.
Is 1Z0 free?
1Z0 is free to download, with no in-app purchases.
Do AWS DEA or 1Z0 have ads?
AWS DEA shows ads; 1Z0 does not.
Which is updated more often, AWS DEA or 1Z0?
AWS DEA ships an update every 5 months, and 1Z0 every 2 months. Most recently, AWS DEA was updated on November 9, 2026 and 1Z0 on October 31, 2026.

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