# PocketJS vs BlueSim

The clearest difference is price: PocketJS at Free against BlueSim's $4.99. PocketJS also leads on iOS requirement (13.0 vs 16.4). BlueSim's advantage is rating (5.0 vs 4.3) and ads (none vs shown). On ratings volume, update cadence, in-app purchases and device support there is nothing between them.

PocketJS is free to download; BlueSim costs $4.99 up front. Neither carries in-app purchases, so what you see is what you pay.

BlueSim holds the better App Store score, 5.0 against 4.3. Both are backed by a comparable volume of ratings — 6 and 4 respectively.

PocketJS ships an update every 3 days, BlueSim every 5 days. The most recent releases landed on October 24, 2026 and October 25, 2026 respectively.

## The numbers

| Metric | PocketJS | BlueSim |
| --- | --- | --- |
| Price | **Free** | $4.99 |
| Rating | [4.3 (6 ratings)](https://appshunter.io/ios/app/pocketjs/id1562514952/reviews) | **[5.0 (4 ratings)](https://appshunter.io/ios/app/bluesim-bluetooth-simulator/id1662190389/reviews)** |
| Number of ratings | **6** | 4 |
| Positive reviews | 66.7% of reviews | — |
| In-app purchases | No | No |
| Ads | Yes | **No** |
| Update frequency | **Every 3 days** | Every 5 days |
| Monetization | **Ad-supported** | Paid |
| Best chart rank | — | **#17** |
| Size | 5 MB | 6 MB |
| Requires iOS | **13.0** | 16.4 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | +4 | 4+ |
| Developer | [PAMA games](https://appshunter.io/developer/328676201) | [Brandon Fraune](https://appshunter.io/developer/1662190391) |

## What reviewers say

### PocketJS

[App page](https://appshunter.io/ios/app/pocketjs/id1562514952)

This app allows users to create and execute JavaScript code directly on their device. It features a console for experimentation and supports saving code as .js files with syntax highlighting. More features and customization options are planned.

**Highlights:** Create JavaScript code, Save code as .js files, JavaScript console, Execute JavaScript files offline, Syntax highlighting

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

**In-app purchases:** none


### BlueSim

[App page](https://appshunter.io/ios/app/bluesim-bluetooth-simulator/id1662190389)

**Currently charting:** #17 Top Paid · Developer Tools, #113 Top Grossing · Developer Tools (US App Store)

Simulate a Bluetooth Low Energy peripheral to test or debug other devices. Send custom data to a central device, facilitating development and troubleshooting.

**Highlights:** Bluetooth LE peripheral simulation, Custom data transfer, Device testing and debugging, Supports central/host devices, iPhone and iPad compatible

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

**In-app purchases:** none


## Frequently asked questions

### Is PocketJS free?

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

### Is BlueSim free?

BlueSim costs $4.99, with no in-app purchases.

### Which has better reviews, PocketJS or BlueSim?

BlueSim is rated higher. PocketJS averages 4.3 out of 5 from 6 ratings, while BlueSim averages 5.0 from 4 ratings.

### Do PocketJS or BlueSim have ads?

PocketJS shows ads; BlueSim does not.

### Which is updated more often, PocketJS or BlueSim?

PocketJS ships an update every 3 days, and BlueSim every 5 days. Most recently, PocketJS was updated on October 24, 2026 and BlueSim on October 25, 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.*