# Simple JavaScript vs JSON DevKit Editor

The clearest difference is price: Simple JavaScript at Free against JSON DevKit Editor's $0.99. Simple JavaScript also leads on iOS requirement (15.6 vs 17.0). JSON DevKit Editor's advantage is in-app purchases (none vs 2) and update cadence (every 9 days vs monthly). On ads and device support there is nothing between them.

Simple JavaScript is free to download; JSON DevKit Editor costs $0.99 up front. Simple JavaScript sells 2 in-app purchases, starting at $1.99 per month. JSON DevKit Editor asks for nothing beyond the download.

Simple JavaScript ships an update monthly, JSON DevKit Editor every 9 days. The most recent releases landed on September 21, 2026 and October 2, 2026 respectively.

## The numbers

| Metric | Simple JavaScript | JSON DevKit Editor |
| --- | --- | --- |
| Price | **Free** | $0.99 |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Monthly | **Every 9 days** |
| Size | 54 MB | 5 MB |
| Requires iOS | **15.6** | 17.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, Mac |
| Age rating | 4+ | 4+ |
| Developer | [YUKI TANAIKE](https://appshunter.io/developer/478558546) | [andy hu](https://appshunter.io/developer/490582311) |

## What reviewers say

### Simple JavaScript

[App page](https://appshunter.io/ios/app/simple-javascript/id6782952012)

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Simple JavaScript Pro (Monthly) | $1.99 | per month |
| Simple JavaScript Pro (Annual) | $18.00 | per year |


### JSON DevKit Editor

[App page](https://appshunter.io/ios/app/json-devkit-editor/id6800187686)

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

**In-app purchases:** none


## Frequently asked questions

### Is Simple JavaScript free?

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

### Is JSON DevKit Editor free?

JSON DevKit Editor costs $0.99, with no in-app purchases.

### Do Simple JavaScript or JSON DevKit Editor have ads?

Neither Simple JavaScript nor JSON DevKit Editor shows ads.

### Which is updated more often, Simple JavaScript or JSON DevKit Editor?

Simple JavaScript ships an update monthly, and JSON DevKit Editor every 9 days. Most recently, Simple JavaScript was updated on September 21, 2026 and JSON DevKit Editor on October 2, 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.*