# Locked In: Prep for Data+

> DA0-001 Legacy Study Library

Canonical page: [https://chrome-stats.com/d/id6771492805](https://chrome-stats.com/d/id6771492805)

## Overview

- **ID:** `id6771492805`
- **Platform:** Apple
- **Type:** Apple app
- **Status:** Available
- **Publisher:** OMAR DANIEL GRAZIANO
- **Category:** Education
- **Rating:** 5.00 / 5 (1 ratings)
- **Version:** 2.2
- **Last updated:** 2026-08-27
- **First published:** 2026-05-27
- **Size:** 4.71 MB
- **Data as of:** 2026-09-20
- **Store listing:** [Apple App Store](https://apps.apple.com/us/app/locked-in-prep-for-data/id6771492805)
- **Website:** [https://stacktrace-studios.com/app/data-plus/](https://stacktrace-studios.com/app/data-plus/)
- **Privacy policy:** [https://stacktrace-studios.com/privacy/data-plus/](https://stacktrace-studios.com/privacy/data-plus/)

## Description

CompTIA Data+ DA0-002 in ten-minute lessons across all five domains, with timed practice and spaced review. Offline.

Locked-In preserves the retired CompTIA Data+ DA0-001 blueprint as an offline historical study library.

IMPORTANT

DA0-001 is retired. This app is not current Data+ exam preparation and should not be used as your only resource for an active certification attempt. Current candidates should use CompTIA's latest published objectives and current training materials.

WHAT'S INCLUDED

• Historical coverage of all five DA0-001 domains: Concepts and Environments, Data Mining, Data Analysis, Visualization, and Governance, Quality and Controls
• Short lessons with visual explanations for schemas, ETL and ELT, joins, statistics, dashboards, data quality, and governance
• Hundreds of original multiple-choice practice questions with explanations
• Interactive PBQ-style activities for knowledge review; these are not official CompTIA questions or an exam simulation
• A 60-question timed legacy practice set with flagging and final review
• Flashcards with spaced repetition and a searchable glossary
• Progress by domain, quiz history, bookmarks, personal notes, study streaks, and weak-spot review

FREE TO EXPLORE

A selection of lessons is available free so you can evaluate the library before purchasing. A single optional, one-time purchase unlocks the remaining lessons and study tools. There is no subscription.

PRIVATE BY DESIGN

No account is required. The app works offline and stores study progress on your device. It contains no third-party analytics, advertising, or tracking.

DISCLAIMER

This is independent historical reference material. It does not contain official exam questions and does not predict certification readiness. Not affiliated with, endorsed by, or sponsored by CompTIA. CompTIA and Data+ are registered trademarks of CompTIA, Inc.

## Rankings

- #768,106 — Overall

## Similar extensions and apps

- [Locked In: Prep for PenTest+](https://chrome-stats.com/d/id6770656425) — 5.00 / 5
- [Locked In: Prep for Net+](https://chrome-stats.com/d/id6770588778) — 5.00 / 5
- [Locked In: Prep for Linux+](https://chrome-stats.com/d/id6771484770) — 5.00 / 5
- [Locked In: IT Support Prep](https://chrome-stats.com/d/id6770585994)
- [Locked In: Prep for Project+](https://chrome-stats.com/d/id6771489915)
- [Locked In: Prep for OSCP](https://chrome-stats.com/d/id6770589438) — 5.00 / 5
- [Locked In: Prep for Cloud+](https://chrome-stats.com/d/id6771487631)
- [CompTIA Data+ Exam Prep 2025](https://chrome-stats.com/d/id6747966582) — 4.50 / 5
- [Security Plus Exam prep](https://chrome-stats.com/d/id6766054036)
- [CompTIA Data+ Exam Pro](https://chrome-stats.com/d/id6670740384)
- [Databricks Data Eng Pro Prep](https://chrome-stats.com/d/id6784650213)
- [Exam DA-100: Analyze Data 2025](https://chrome-stats.com/d/id1580542032)

---

Source: [Chrome-Stats](https://chrome-stats.com/d/id6771492805)