# JFK Muse vs Devv 30

The clearest difference is in-app purchases: JFK Muse at none against Devv 30's 10. JFK Muse also leads on ads (none vs shown). Devv 30's advantage is update cadence (every 8 days vs every 43 months) and iOS requirement (12.4 vs 15.6). On price and device support there is nothing between them.

Both are free to download. Devv 30 sells 10 in-app purchases, starting at $6.99 per 7 days. JFK Muse asks for nothing beyond the download.

JFK Muse ships an update every 43 months, Devv 30 every 8 days. Both last shipped on September 18, 2026.

## The numbers

| Metric | JFK Muse | Devv 30 |
| --- | --- | --- |
| Price | Free | Free |
| Positive reviews | — | 60.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 43 months | **Every 8 days** |
| Monetization | — | Free with in-app purchases |
| Size | 23 MB | 85 MB |
| Requires iOS | 15.6 | **12.4** |
| Devices | **iPhone, iPad, iPod** | iPhone, iPod |
| Age rating | 12+ | 4+ |
| Developer | [I.T.S.T. "J. F. Kennedy" - Pordenone](https://appshunter.io/developer/1106829314) | [Matteo Giardino](https://appshunter.io/developer/1753230979) |

## What reviewers say

### JFK Muse

[App page](https://appshunter.io/ios/app/jfk-muse/id1629060427)

**In-app purchases:** none


### Devv 30

[App page](https://appshunter.io/ios/app/devv-30-learn-coding/id6504672779)

Learn to code in just 30 days with short, engaging lessons. Build real-world projects, create a portfolio, and prepare for a developer career. Covers Python, JavaScript, HTML, and more.

**Highlights:** Learn popular programming languages, Build real-world projects, Create a portfolio for your resume, Earn a programming certificate, Daily coding challenges, Run code directly in the app

**In-app purchases (10)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Devv Pro Weekly | $6.99 | per 7 days |
| Pro Monthly | $6.99 | per month |
| Devv Pro Monthly | $8.99 | per month |
| Devv Pro Monthly | $14.99 | per month |
| Devv Pro 3 Months | $17.99 | per 3 months |
| Pro Yearly | $49.99 | per year |
| Devv Pro Yearly | $49.99 | per year |
| Devv Pro Yearly | $119.99 | per year |
| 1 Challenge Access | $34.99 | one-time |
| Lifetime Access | $69.99 | one-time |


## Frequently asked questions

### Is JFK Muse free?

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

### Is Devv 30 free?

Devv 30 is free to download, with in-app purchases available.

### Do JFK Muse or Devv 30 have ads?

Devv 30 shows ads; JFK Muse does not.

### Which is updated more often, JFK Muse or Devv 30?

JFK Muse ships an update every 43 months, and Devv 30 every 8 days. Most recently, JFK Muse was updated on September 18, 2026 and Devv 30 on September 18, 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.*