Comparison

ecode10 Database vs D426 Mastery

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

Head to head
About

ecode10 Database

Learn database concepts step-by-step with practical, hands-on lessons. This course covers SQL Server, Azure Data Studio, and essential SQL commands. Downloadable videos allow for offline learning.

Highlights
  • Step-by-step database learning
  • Focus on SQL Server
  • Practical command demonstrations
  • Offline video access
  • Downloadable video lessons
  • Challenge Based Learning (CBL)
Features
Read full description

This course was created to learn more about database step by step. I will teach you about the database on the cloud but can you use the same concepts to use the local database. Course create now, October 10, the year 2022. All classes are practices and I show you step by step all commands necessary with a dynamic course. Focus database: SQL Server Tool: Azure Data Studio and Microsoft SQL Server Management Studio Language: SQL Platforms: Windows and Mac You can see this class on your smartphone, tablet e computer. - Installation - Tools - Tips about the database and tips inside the tools - Commands (all of them) - Tables - Stored procedure - Views - Rollback - Commit - Transaction - Delete, Insert, Update, Select - SQL Server - Microsoft - Step by step - Language: English - Classes type: Classes with 100% practices - Offline videos - Download videos - CBL (Challenge Based Learning) methodology No subscription Just one payment

About

D426 Mastery

Features
Read full description

Stop stressing about D426. Start mastering it. D426 Mastery is the #1 study app built specifically for WGU students preparing for the D426 Data Management Foundations Objective Assessment. Every flashcard, every quiz question, and every sample database is designed to help you pass your OA with confidence. SPACED REPETITION FLASHCARDS - 400+ flashcards covering every D426 competency - Anki-style SM-2 algorithm that adapts to your knowledge - Cards you struggle with show up more often -- cards you know fade away - Search, browse, and filter by topic MOCK OA EXAMS - 200+ exam-style multiple choice questions - Randomized answer positions so you actually learn, not memorize patterns - Review every missed question with the correct answer and detailed explanation - Topic-based quizzes to target your weak areas REAL SQL PLAYGROUND - Write and execute actual SQL queries -- not just theory - 5 realistic sample databases: University, Sales, Hospital, Employee, Inventory - Syntax highlighting, formatted result tables, and query history - Practice DDL and DML commands against real data INTERACTIVE ER DIAGRAM BUILDER - Drag-and-drop entities, attributes, and relationships - Crow's Foot notation with cardinality validation - Build and visualize database designs hands-on COMPLETE TOPIC COVERAGE - Relational Model Concepts - ER Diagrams and Crow's Foot Notation - Primary Keys and Foreign Keys - Database Normalization (1NF, 2NF, 3NF, BCNF) - SQL DDL Commands (CREATE, ALTER, DROP) - SQL DML Commands (SELECT, INSERT, UPDATE, DELETE) - Conceptual, Logical and Physical Data Models - DBMS Architecture and ACID Properties SMART PROGRESS TRACKING - Mastery percentage for every topic - Radar chart showing your strengths and weak spots - OA Readiness score -- know exactly when you're ready to test - Study streak counter and daily session timer - Detailed statistics: cards reviewed, quizzes taken, accuracy rate SEARCHABLE GLOSSARY - 90+ database terms with clear definitions - Organized by category for quick reference - Perfect for last-minute review before your OA FREE VS PREMIUM Free includes: - 50 flashcards with full spaced repetition - 1 mock OA exam per day - 1 sample SQL database - Complete glossary - Basic study statistics Premium unlocks: - All 400+ flashcards - Unlimited mock OA exams - All 5 SQL databases - Missed questions review after every quiz - OA Readiness score - Interactive ER Diagram Builder - Advanced analytics Premium is available as a monthly subscription ($7.99/month, auto-renewing) or a one-time lifetime purchase ($24.99). Monthly subscriptions automatically renew unless canceled at least 24 hours before the end of the current billing period. Manage or cancel anytime in your Apple ID account settings. WORKS 100% OFFLINE No internet required. No account needed. No data leaves your device. Study anywhere -- on the bus, in bed, between classes. BUILT BY WGU STUDENTS, FOR WGU STUDENTS We know the D426 OA because we've been there. Every flashcard and quiz question is mapped to actual course competencies so you study what matters. D426 Mastery is an independent study aid and is not affiliated with, endorsed by, or sponsored by Western Governors University. Support: https://johndisalle.github.io/D426/support Terms of Service: https://johndisalle.github.io/D426/terms-of-service Privacy Policy: https://johndisalle.github.io/D426/privacy-policy

Screenshots

ecode10 Database4 screens
D426 Mastery4 screens

Verdict

The call

ecode10 Database and D426 Mastery are too close to call on the numbers: across 5 compared parameters — price, ads, in-app purchases and device support among them — neither pulls far enough ahead to decide it. What separates them is feature set and interface, not measurable difference.

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. ecode10 Database sells 1 one-off in-app purchase and D426 Mastery sells 2 in-app purchases, starting at $7.99 per month. Whichever you choose, the download price is not the number that matters.

ScorecardNo meaningful differences
ecode10 Database versus D426 Mastery: the parameters behind the verdict, then further details
Parameterecode10 DatabaseD426 Mastery
PriceFreeFree
Rating5.0 (1 ratings) — better—
Number of ratings1 — better—
AdsNoNo
In-app purchasesYesYes
MonetizationFree—
DevicesiPhone, iPadiPhone, iPad
Requires iOS16.2 — better17.6
Further details — not scored
Size4 MB4 MB
Age rating4+4+
DeveloperMauricio JuniorJOHN TIMOTHY DISALLE

In-app purchases

1 purchases

ecode10 Database

One-time1
  • Database course practice$29.99
2 purchases

D426 Mastery

Subscriptions1
  • Monthly Premium$7.991 Month
One-time1
  • Lifetime Access$24.99

Questions

Is ecode10 Database free?
ecode10 Database is free to download, with in-app purchases available.
Is D426 Mastery free?
D426 Mastery is free to download, with in-app purchases available.
Do ecode10 Database or D426 Mastery have ads?
Neither ecode10 Database nor D426 Mastery shows ads.

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