# Subway3D vs Learn Claude (Cert Exam Prep)

The clearest difference is device support: Learn Claude (Cert Exam Prep) at 2 against Subway3D's —. Learn Claude (Cert Exam Prep) also leads on iOS requirement (15.0 vs 18.0). On price and in-app purchases there is nothing between them.

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Subway3D | Learn Claude (Cert Exam Prep) |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[3.0 (2 ratings)](https://appshunter.io/ios/app/learn-claude-cert-exam-prep/id6790911467/reviews)** |
| Number of ratings | — | **2** |
| In-app purchases | No | No |
| Ads | — | No |
| Monetization | — | Free |
| Size | 22 MB | 18 MB |
| Requires iOS | 18.0 | **15.0** |
| Devices | — | **iPhone, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Geoffrey Domm](https://appshunter.io/developer/373378724) | [Ford Prior](https://appshunter.io/developer/6790911469) |

## What reviewers say

### Subway3D

[App page](https://appshunter.io/ios/app/subway3d/id6446181722)

**In-app purchases:** none


### Learn Claude (Cert Exam Prep)

[App page](https://appshunter.io/ios/app/learn-claude-cert-exam-prep/id6790911467)

A 21-day self-paced study guide designed for developers preparing to use Anthropic's Claude Code. It offers daily modules with hands-on exercises and reference materials to build fluency in agentic coding workflows.

**Highlights:** 21-day self-paced study plan, Daily focused modules, Hands-on exercises with GitHub repo, Reference documents for tools and workflows, Flashcard decks with spaced review, Progress tracking across devices, Offline curriculum access

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Subway3D free?

Subway3D is free to download, with no in-app purchases.

### Is Learn Claude (Cert Exam Prep) free?

Learn Claude (Cert Exam Prep) is free to download, with no in-app purchases.

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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.*