# Periodic Playground vs CS++ AP CSA

The clearest difference is price: CS++ AP CSA at Free against Periodic Playground's $0.99. Periodic Playground's advantage is in-app purchases (none vs 1) and iOS requirement (13.0 vs 15.0). On ads and device support there is nothing between them.

CS++ AP CSA is free to download; Periodic Playground costs $0.99 up front. CS++ AP CSA sells 1 one-off in-app purchase. Periodic Playground asks for nothing beyond the download.

## The numbers

| Metric | Periodic Playground | CS++ AP CSA |
| --- | --- | --- |
| Price | $0.99 | **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 | 157 MB | 59 MB |
| Requires iOS | **13.0** | 15.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Zubin Hasham](https://appshunter.io/developer/1771775751) | [Kevin P Hare LLC](https://appshunter.io/developer/1343264116) |

## What reviewers say

### Periodic Playground

[App page](https://appshunter.io/ios/app/periodic-playground/id6748287099)

**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 Periodic Playground free?

Periodic Playground costs $0.99, with no in-app purchases.

### Is CS++ AP CSA free?

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

### Do Periodic Playground or CS++ AP CSA have ads?

Neither Periodic Playground 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.*