# Shellton vs Codable

The clearest difference is in-app purchases: Shellton at none against Codable's 2. Shellton also leads on iOS requirement (17.0 vs 26). Codable's advantage is update cadence (every 4 days vs every 2 weeks) and device support (3 vs 1). On price and ads there is nothing between them.

Both are free to download. Codable sells 2 in-app purchases, starting at $4.99 per month. Shellton asks for nothing beyond the download.

Shellton ships an update every 2 weeks, Codable every 4 days. The most recent releases landed on September 22, 2026 and September 30, 2026 respectively.

## The numbers

| Metric | Shellton | Codable |
| --- | --- | --- |
| Price | Free | Free |
| Rating | — | **[5.0 (3 ratings)](https://appshunter.io/ios/app/codable-code-challenges/id6787467242/reviews)** |
| Number of ratings | — | **3** |
| Positive reviews | — | 100.0% of reviews |
| In-app purchases | **No** | Yes |
| Ads | No | No |
| Update frequency | Every 2 weeks | **Every 4 days** |
| Monetization | — | Freemium |
| Size | 46 MB | 3 MB |
| Requires iOS | **17.0** | 26 |
| Devices | iPhone | **iPhone, iPad, Mac** |
| Age rating | 17+ | 4+ |
| Developer | [Jesus Lopez](https://appshunter.io/developer/6772469815) | [Intrepid Reality, LLC](https://appshunter.io/developer/1755278398) |

## What reviewers say

### Shellton

[App page](https://appshunter.io/ios/app/shellton/id6772469813)

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

**In-app purchases:** none


### Codable

[App page](https://appshunter.io/ios/app/codable-code-challenges/id6787467242)

Master programming by solving focused coding challenges in ten popular languages. Build real fluency through daily practice, from fundamental concepts to advanced topics like concurrency and memory management. Suitable for beginners and experienced developers alike.

**Highlights:** Solve coding challenges in 10 languages, Practice data structures and algorithms, Master concurrency and memory management, Build fluency with daily focused practice, Suitable for all skill levels, Switch between programming languages

**Features:** Family Sharing, Vision Pro support

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Codable Pro | $4.99 | per month |
| Codable Pro | $29.99 | per year |


## Frequently asked questions

### Is Shellton free?

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

### Is Codable free?

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

### Do Shellton or Codable have ads?

Neither Shellton nor Codable shows ads.

### Which is updated more often, Shellton or Codable?

Shellton ships an update every 2 weeks, and Codable every 4 days. Most recently, Shellton was updated on September 22, 2026 and Codable on September 30, 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.*