# GR Tube vs CS++ AP CSA

The clearest difference is in-app purchases: GR Tube at none against CS++ AP CSA's 1. GR Tube also leads on iOS requirement (11.0 vs 15.0). On price, ads and device support there is nothing between them.

Both are free to download. CS++ AP CSA sells 1 one-off in-app purchase. GR Tube asks for nothing beyond the download.

## The numbers

| Metric | GR Tube | CS++ AP CSA |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (2 ratings)](https://appshunter.io/ios/app/cs-plus-plus-ap-csa/id6763950108/reviews)** |
| Number of ratings | — | **2** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | — | Every 3 weeks |
| Monetization | — | Free with in-app purchases |
| Size | 52 MB | 59 MB |
| Requires iOS | **11.0** | 15.0 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Grade Results, Inc.](https://appshunter.io/developer/1027636804) | [Kevin P Hare LLC](https://appshunter.io/developer/1343264116) |

## What reviewers say

### GR Tube

[App page](https://appshunter.io/ios/app/gr-tube/id1584660786)

**Features:** macOS Compatibility

**In-app purchases:** none


### CS++ AP CSA

[App page](https://appshunter.io/ios/app/cs-plus-plus-ap-csa/id6763950108)

This app provides a comprehensive AP Computer Science A course, featuring offline Java execution, practice questions, and coding challenges. It covers all 11 units of the College Board curriculum with detailed explanations and error callouts. Progress is saved locally, ensuring privacy and accessibility without an internet connection.

**Highlights:** Offline Java runtime, 11 AP CSA course units, Hundreds of practice questions, Inline Java coding challenges, Topic-by-topic explanations, Progress saved on-device, No account or tracking

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

**In-app purchases (1)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Unlock Full AP CSA Course | $9.99 | one-time |


## Frequently asked questions

### Is GR Tube free?

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

### Is CS++ AP CSA free?

CS++ AP CSA is free to download, with in-app purchases available.

### Do GR Tube or CS++ AP CSA have ads?

Neither GR Tube nor CS++ AP CSA 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.*