Comparison

The Data Channel 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

The Data Channel

Access educational content on data science and analytics through a subscription service. Learn at your own pace with flexible plan options and manage your subscription easily.

Highlights
  • Subscription-based learning
  • Flexible plan lengths
  • Manage subscriptions via iTunes
  • Free trial periods
  • Content for data professionals
Features
Read full description

Learn data on your terms: at home or on the go. The Data Channel offers a subscription service that you can subscribe to using your Apple ID. You can subscribe **plan lengths, weekly, monthly, yearly**. You'll be charged as a recurring transaction through your iTunes account starting at the end of your free trial (unless you cancel during the free trial). Payment automatically renews unless you cancel your account at least 24 hours before the end of the current subscription period. You can manage your subscription, cancel anytime, or turn off auto-renewal by accessing your iTunes account. Terms of Service: https://odeum.io/terms/subscriber-tos.html Privacy Policy: https://odeum.io/terms/privacy.html

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 - The first 100 questions are free. One in-app purchase unlocks all 150 in this app, with no subscription. 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

The Data Channel4 screens
Data Engineer Cert Prep3 screens

Verdict

The call

The clearest difference is iOS requirement: The Data Channel at 14.0 against Data Engineer Cert Prep's 16.0. On price, update cadence, ads and in-app purchases 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. The Data Channel sells 2 in-app purchases, starting at $14.99 per month and Data Engineer Cert Prep sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

UpkeepUpdate frequency

The Data Channel ships an update every 6 weeks, Data Engineer Cert Prep every 2 months. The most recent releases landed on November 3, 2026 and November 12, 2026 respectively.

Scorecard1 real difference · 8 level
The Data Channel versus Data Engineer Cert Prep: the parameters behind the verdict, then further details
ParameterThe Data ChannelData Engineer Cert Prep
PriceFreeFree
Rating5.0 (2 ratings) — better—
Number of ratings2 — better—
Update frequencyEvery 6 weeks — betterEvery 2 months
AdsNoNo
In-app purchasesYesYes
MonetizationSubscription—
DevicesiPhone, iPad, iPod, Apple TV — betteriPhone, iPad, Mac
Requires iOS14.0 — better16.0
Further details — not scored
Size24 MB1 MB
Age rating4+4+
DeveloperAndy Leonard Training, Inc.DjamgaTech Corp

In-app purchases

2 purchases

The Data Channel

Subscriptions2
  • Basic Monthly7 Days trial$14.991 Month
  • Basic Annual7 Days trial$149.991 Year
1 purchases

Data Engineer Cert Prep

One-time1
  • 50 More Questions$4.99

Questions

Is The Data Channel free?
The Data Channel is free to download, with in-app purchases available.
Is Data Engineer Cert Prep free?
Data Engineer Cert Prep is free to download, with in-app purchases available.
Do The Data Channel or Data Engineer Cert Prep have ads?
Neither The Data Channel nor Data Engineer Cert Prep shows ads.
Which is updated more often, The Data Channel or Data Engineer Cert Prep?
The Data Channel ships an update every 6 weeks, and Data Engineer Cert Prep every 2 months. Most recently, The Data Channel was updated on November 3, 2026 and Data Engineer Cert Prep on November 12, 2026.

Other comparisons