# Thermals vs JavaScript Coding Editor & IDE

The clearest difference is review sentiment: Thermals at 83% against JavaScript Coding Editor & IDE's 42%. Thermals also leads on in-app purchases (none vs 6) and ads (none vs shown). JavaScript Coding Editor & IDE's advantage is update cadence (every 3 weeks vs every 3 months) and ratings volume (97 vs 28). On price and device support there is nothing between them.

Both are free to download. JavaScript Coding Editor & IDE sells 6 in-app purchases, starting at $11.99 per month. Thermals asks for nothing beyond the download.

Thermals holds the better App Store score, 4.5 against 4.3. Both are backed by a comparable volume of ratings — 28 and 97 respectively. Written reviews point the same way: 83% of Thermals's written reviews are positive against 42% of JavaScript Coding Editor & IDE's.

Thermals ships an update every 3 months, JavaScript Coding Editor & IDE every 3 weeks. The most recent releases landed on October 6, 2026 and October 7, 2026 respectively.

## The numbers

| Metric | Thermals | JavaScript Coding Editor & IDE |
| --- | --- | --- |
| Price | Free | Free |
| Rating | **[4.5 (28 ratings)](https://appshunter.io/ios/app/thermals/id1567050762/reviews)** | [4.3 (97 ratings)](https://appshunter.io/ios/app/javascript-coding-editor-and-ide/id6444286049/reviews) |
| Number of ratings | 28 | **97** |
| Positive reviews | **83.3% of reviews** | 42.3% of reviews |
| In-app purchases | **No** | Yes |
| Ads | **No** | Yes |
| Update frequency | Every 3 months | **Every 3 weeks** |
| Monetization | **Free** | Free with in-app purchases |
| Best chart rank | #134 | **#31** |
| Size | 3 MB | 188 MB |
| Requires iOS | 18.6 | **13.0** |
| Devices | iPhone, iPad, Apple Watch | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [George Garside](https://appshunter.io/developer/815604170) | [Cloudbit d.o.o.](https://appshunter.io/developer/1387318660) |

## What reviewers say

### Thermals

[App page](https://appshunter.io/ios/app/thermals/id1567050762)

**Currently charting:** #134 Top Free · Developer Tools (US App Store)

Monitor your device's thermal state and processor activity to diagnose performance issues. Understand why your phone might be running slowly, charging slowly, or have reduced brightness due to overheating. Export data for further analysis with other development tools.

**Highlights:** Displays device thermal state, Shows active processor count, Monitors device uptime, Troubleshoots performance issues, Helps diagnose slow charging, Identifies brightness limitations, Exports raw data for analysis

**Features:** Apple Watch app

**In-app purchases:** none


### JavaScript Coding Editor & IDE

[App page](https://appshunter.io/ios/app/javascript-coding-editor-and-ide/id6444286049)

**Currently charting:** #31 Top Grossing · Developer Tools, #147 Top Free · Developer Tools (US App Store)

This app is a powerful offline IDE for JavaScript and TypeScript development. It features a built-in compiler, console, and DOM WebView, allowing you to write, run, and debug code anywhere. Enhance your skills with tutorials, coding challenges, and an AI assistant.

**Highlights:** Offline JavaScript and TypeScript execution, Built-in compiler and console, DOM WebView for web app development, AI assistant for code help, Syntax highlighting and code completion, Coding challenges and tutorials, Node.js runtime support

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

**In-app purchases (6)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Developer Upgrade Monthly | $11.99 | per month |
| Developer Upgrade Yearly | $39.99 | per year |
| Remove Ads | $6.99 | one-time |
| Developer Upgrade Offer | $9.99 | one-time |
| Developer Upgrade | $19.99 | one-time |
| Developer Lite | $39.99 | one-time |


## Frequently asked questions

### Is Thermals free?

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

### Is JavaScript Coding Editor & IDE free?

JavaScript Coding Editor & IDE is free to download, with in-app purchases available.

### Which has better reviews, Thermals or JavaScript Coding Editor & IDE?

Thermals is rated higher. Thermals averages 4.5 out of 5 from 28 ratings, while JavaScript Coding Editor & IDE averages 4.3 from 97 ratings.

### Do Thermals or JavaScript Coding Editor & IDE have ads?

JavaScript Coding Editor & IDE shows ads; Thermals does not.

### Which is updated more often, Thermals or JavaScript Coding Editor & IDE?

Thermals ships an update every 3 months, and JavaScript Coding Editor & IDE every 3 weeks. Most recently, Thermals was updated on October 6, 2026 and JavaScript Coding Editor & IDE on October 7, 2026.

### Which is more popular, Thermals or JavaScript Coding Editor & IDE?

Thermals currently peaks at #134 in the App Store charts, and JavaScript Coding Editor & IDE at #31. Chart position reflects recent download velocity rather than total install base.

---

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