# Devv 30 vs Kotlin Academy

The clearest difference is price: Devv 30 at Free against Kotlin Academy's $6.99. Devv 30 also leads on update cadence (every 8 days vs every 3 months) and iOS requirement (12.4 vs 15.1). Kotlin Academy's advantage is in-app purchases (none vs 10) and ads (none vs shown). On device support there is nothing between them.

Devv 30 is free to download; Kotlin Academy costs $6.99 up front. Devv 30 sells 10 in-app purchases, starting at $6.99 per 7 days. Kotlin Academy asks for nothing beyond the download.

Devv 30 ships an update every 8 days, Kotlin Academy every 3 months. The most recent releases landed on September 18, 2026 and October 10, 2026 respectively.

## The numbers

| Metric | Devv 30 | Kotlin Academy |
| --- | --- | --- |
| Price | **Free** | $6.99 |
| Positive reviews | 60.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | Yes | **No** |
| Update frequency | **Every 8 days** | Every 3 months |
| Monetization | Free with in-app purchases | — |
| Size | 85 MB | 36 MB |
| Requires iOS | **12.4** | 15.1 |
| Devices | iPhone, iPod | **iPhone, iPad, iPod** |
| Age rating | 4+ | 4+ |
| Developer | [Matteo Giardino](https://appshunter.io/developer/1753230979) | [SimTeCon GmbH](https://appshunter.io/developer/1761797043) |

## What reviewers say

### 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 |


### Kotlin Academy

[App page](https://appshunter.io/ios/app/kotlin-academy/id6741525742)

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is Devv 30 free?

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

### Is Kotlin Academy free?

Kotlin Academy costs $6.99, with no in-app purchases.

### Do Devv 30 or Kotlin Academy have ads?

Devv 30 shows ads; Kotlin Academy does not.

### Which is updated more often, Devv 30 or Kotlin Academy?

Devv 30 ships an update every 8 days, and Kotlin Academy every 3 months. Most recently, Devv 30 was updated on September 18, 2026 and Kotlin Academy on October 10, 2026.

---

*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*