# Javascript REPL vs Web Development SDK

The clearest difference is price: Javascript REPL at Free against Web Development SDK's $9.99. Javascript REPL also leads on iOS requirement (12.0 vs 18.1). Web Development SDK's advantage is ads (none vs shown). On in-app purchases and device support there is nothing between them.

Javascript REPL is free to download; Web Development SDK costs $9.99 up front. Neither carries in-app purchases, so what you see is what you pay.

## The numbers

| Metric | Javascript REPL | Web Development SDK |
| --- | --- | --- |
| Price | **Free** | $9.99 |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | — | Every 4 months |
| Size | 28 MB | 1 MB |
| Requires iOS | **12.0** | 18.1 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [SEUNGWOO JO](https://appshunter.io/developer/1638712318) | [Lucas Exequiel Di Tomase](https://appshunter.io/developer/1456307400) |

## What reviewers say

### Javascript REPL

[App page](https://appshunter.io/ios/app/javascript-repl-code-runner/id6504182953)

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

**In-app purchases:** none


### Web Development SDK

[App page](https://appshunter.io/ios/app/web-development-sdk/id6547853178)

**In-app purchases:** none


## Frequently asked questions

### Is Javascript REPL free?

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

### Is Web Development SDK free?

Web Development SDK costs $9.99, with no in-app purchases.

### Do Javascript REPL or Web Development SDK have ads?

Javascript REPL shows ads; Web Development SDK does not.

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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.*