# Docker ABCs vs Locked In

The clearest difference is price: Locked In at Free against Docker ABCs's $0.99. Docker ABCs's advantage is in-app purchases (none vs 1). On ads, device support and iOS requirement there is nothing between them.

Locked In is free to download; Docker ABCs costs $0.99 up front. Locked In sells 1 one-off in-app purchase. Docker ABCs asks for nothing beyond the download.

## The numbers

| Metric | Docker ABCs | Locked In |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 2 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 5 MB | 5 MB |
| Requires iOS | 17.5 | **17.0** |
| Devices | iPhone, iPad | iPhone, iPad |
| Age rating | 4+ | 17+ |
| Developer | [correlateencourage LLC](https://appshunter.io/developer/1752254883) | [OMAR DANIEL GRAZIANO](https://appshunter.io/developer/1896485759) |

## What reviewers say

### Docker ABCs

[App page](https://appshunter.io/ios/app/docker-abcs-containerization/id6739635904)

**Features:** macOS Compatibility, Vision Pro support

**In-app purchases:** none


### Locked In

[App page](https://appshunter.io/ios/app/locked-in-prep-for-oscp/id6770589438)

This offline study companion reinforces cybersecurity exam topics through focused lessons, quick checks, and practice questions. It covers methodology, exploitation, privilege escalation, and reporting with flashcards and progress tracking. Unlock the full library with a one-time purchase.

**Highlights:** Offline knowledge companion, Methodology and reporting lessons, Visual explanations, Inline quick-checks and practice questions, PBQ-style learning activities, Timed knowledge-practice mode, Flashcards with spaced repetition, Progress tracking and study streaks

**Features:** macOS Compatibility, Family Sharing

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Locked In! OSCP Unlock | $14.99 | one-time |


## Frequently asked questions

### Is Docker ABCs free?

Docker ABCs costs $0.99, with no in-app purchases.

### Is Locked In free?

Locked In is free to download, with in-app purchases available.

### Do Docker ABCs or Locked In have ads?

Neither Docker ABCs nor Locked In shows ads.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*