# Enchiridion vs CS++ AP CSP

The clearest difference is monetization model: CS++ AP CSP at free with in-app purchases against Enchiridion's subscription. CS++ AP CSP also leads on device support (3 vs 1) and iOS requirement (15.0 vs 17.0). Enchiridion's advantage is update cadence (every 5 days vs every 3 weeks). On price, rating, review sentiment and ratings volume there is nothing between them.

Both are free to download. Enchiridion sells 2 in-app purchases, starting at $12.99 per month and CS++ AP CSP sells 1 one-off in-app purchase. Whichever you choose, the download price is not the number that matters.

On the App Store both sit at effectively the same score — 5.0 for Enchiridion against 5.0 for CS++ AP CSP. Both are backed by a comparable volume of ratings — 2 and 1 respectively. Written reviews split almost evenly too, at 100% and 100% positive.

Enchiridion ships an update every 5 days, CS++ AP CSP every 3 weeks. The most recent releases landed on October 25, 2026 and October 24, 2026 respectively.

## The numbers

| Metric | Enchiridion | CS++ AP CSP |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [5.0 (2 ratings)](https://appshunter.io/ios/app/enchiridion-microlearning-app/id6757939608/reviews) | [5.0 (1 ratings)](https://appshunter.io/ios/app/cs-plus-plus-ap-csp/id6763950898/reviews) |
| Number of ratings | **2** | 1 |
| Positive reviews | 100.0% of reviews | 100.0% of reviews |
| In-app purchases | Yes | Yes |
| Ads | No | No |
| Update frequency | **Every 5 days** | Every 3 weeks |
| Monetization | Subscription | **Free with in-app purchases** |
| Size | 95 MB | 59 MB |
| Requires iOS | 17.0 | **15.0** |
| Devices | iPhone | **iPhone, iPad, iPod** |
| Age rating | 12+ | 4+ |
| Developer | [Zachary Highley-Gergel](https://appshunter.io/developer/1869789589) | [Kevin P Hare LLC](https://appshunter.io/developer/1343264116) |

## What reviewers say

### Enchiridion

[App page](https://appshunter.io/ios/app/enchiridion-microlearning-app/id6757939608)

This app helps you retain knowledge long-term using science-backed spaced repetition. It offers structured learning paths, articles, and progress tracking for various topics. Access all features through an auto-renewing subscription.

**Highlights:** Spaced repetition study sessions, Structured learning paths, Deep-dive articles, Progress tracking and streaks, iCloud sync, Personal finance, health, philosophy topics

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Premium Monthly | $12.99 | per month |
| Premium Annual | $99.99 | per year |


### CS++ AP CSP

[App page](https://appshunter.io/ios/app/cs-plus-plus-ap-csp/id6763950898)

This app provides a comprehensive, offline AP Computer Science Principles course. It features 11 units aligned with the College Board curriculum, interactive quizzes with explanations, and clear, jargon-free lessons. Progress is saved locally, ensuring accessibility anywhere.

**Highlights:** 11 AP CSP course units, Offline access, Hundreds of practice questions, Clear, conversational lessons, On-device progress saving, AP-prep notes and examples

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

**In-app purchases (1)**

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


## Frequently asked questions

### Is Enchiridion free?

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

### Is CS++ AP CSP free?

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

### Which has better reviews, Enchiridion or CS++ AP CSP?

Enchiridion and CS++ AP CSP are both rated 5.0 out of 5 on the App Store, from 2 and 1 ratings respectively.

### Do Enchiridion or CS++ AP CSP have ads?

Neither Enchiridion nor CS++ AP CSP shows ads.

### Which is updated more often, Enchiridion or CS++ AP CSP?

Enchiridion ships an update every 5 days, and CS++ AP CSP every 3 weeks. Most recently, Enchiridion was updated on October 25, 2026 and CS++ AP CSP on October 24, 2026.

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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.*