# Processing & p5.js iCompiler vs MyMQTT

The clearest difference is rating: MyMQTT at 5.0 against Processing & p5.js iCompiler's 3.5. Processing & p5.js iCompiler's advantage is ads (none vs shown) and review sentiment (58% vs 33%). On price, update cadence, in-app purchases and monetization model there is nothing between them.

Both are free to download. Processing & p5.js iCompiler sells 5 in-app purchases, starting at $3.49 per month and MyMQTT sells 2 in-app purchases, starting at $0.99 per month. Whichever you choose, the download price is not the number that matters.

MyMQTT holds the better App Store score, 5.0 against 3.5. That said, the two scores are not equally well evidenced: Processing & p5.js iCompiler has 83 ratings behind it against 1, so its average is the more settled of the two. Written reviews complicate that: 58% of Processing & p5.js iCompiler's written reviews are positive against 33% of MyMQTT's, so the app with the better star average is not the one people write more warmly about.

Processing & p5.js iCompiler ships an update every 2 months, MyMQTT every 3 months. Both last shipped on October 24, 2026.

## The numbers

| Metric | Processing & p5.js iCompiler | MyMQTT |
| --- | --- | --- |
| Price | Free | Free |
| Rating | [3.5 (83 ratings)](https://appshunter.io/ios/app/processing-and-p5js-icompiler/id648955851/reviews) | **[5.0 (1 ratings)](https://appshunter.io/ios/app/mymqtt/id1634425878/reviews)** |
| Number of ratings | **83** | 1 |
| Positive reviews | **58.0% of reviews** | 33.3% of reviews |
| In-app purchases | Yes | Yes |
| Ads | **No** | Yes |
| Update frequency | **Every 2 months** | Every 3 months |
| Monetization | Freemium | Free with in-app purchases |
| Size | 10 MB | 18 MB |
| Requires iOS | **15.0** | 18.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [riedel.wtf apps S.L.](https://appshunter.io/developer/517545753) | [instant:solutions OG](https://appshunter.io/developer/915106584) |

## What reviewers say

### Processing & p5.js iCompiler

[App page](https://appshunter.io/ios/app/processing-and-p5js-icompiler/id648955851)

Develop and compile Processing and p5.js code directly on your mobile device. Export your creations as standalone apps for offline use. Ideal for students and educators learning creative coding.

**Highlights:** Compose and compile code on mobile, Export projects as home screen apps, Offline app usage, Code highlighting and formatting, 3D sketches and games support, Error highlighting (Pro feature)

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

**In-app purchases (5)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Processing Pro (Monthly) | $3.49 | per month |
| Processing Pro (Annual) | $9.99 | per year |
| Processing for iOS Tip | $4.99 | one-time |
| Processing Pro Lifetime Unlock | $25.99 | one-time |
| Processing for iOS Tip | $99.99 | one-time |

**What reviewers like**

- ✅ Works offline without internet connection
- 👍 Free app with no mandatory payment
- 🎨 Good for quick creative coding and sketches
- 📱 Portable Processing development on mobile
- ⚡ Relatively fast performance for mobile IDE

**What reviewers complain about**

- 🚫 Compiler errors hidden behind paywall
- 🐛 Data loss and code deletion issues
- ❌ No error messages or debugging output
- 📝 Poor syntax highlighting (highlights wrong keywords)
- ⌨️ No auto-indentation or code formatting

**Reported bugs**

- Code reverts to earlier versions after app sleep
- Changes lost when phone falls asleep
- Functions with parameters cause black screen
- StringList data type not recognized
- Boolean highlighting shows 'bool' instead of full word

**Requested features**

- Free basic error messages for all users
- Undo/redo functionality
- Project renaming capability
- Project duplication feature
- Robust auto-save and backup system


### MyMQTT

[App page](https://appshunter.io/ios/app/mymqtt/id1634425878)

This professional client facilitates communication with MQTT brokers, supporting versions 3.1.1 and 5.0. It allows users to subscribe to topics, publish messages, and view detailed message metadata. Features include payload formatting, SSL support, and both dark and light modes.

**Highlights:** Connect to MQTT v3.1.1 and v5.0 Brokers, Subscribe and publish messages, Show message details and metadata, Payload formatting and highlighting, SSL support, Dark and light mode

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

**In-app purchases (2)**

| Purchase | Price | Billing |
| --- | --- | --- |
| Monthly | $0.99 | per month |
| Yearly | $8.99 | per year |


## Frequently asked questions

### Is Processing & p5.js iCompiler free?

Processing & p5.js iCompiler is free to download, with in-app purchases available.

### Is MyMQTT free?

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

### Which has better reviews, Processing & p5.js iCompiler or MyMQTT?

MyMQTT is rated higher. Processing & p5.js iCompiler averages 3.5 out of 5 from 83 ratings, while MyMQTT averages 5.0 from 1 ratings.

### Do Processing & p5.js iCompiler or MyMQTT have ads?

MyMQTT shows ads; Processing & p5.js iCompiler does not.

### Which is updated more often, Processing & p5.js iCompiler or MyMQTT?

Processing & p5.js iCompiler ships an update every 2 months, and MyMQTT every 3 months. Most recently, Processing & p5.js iCompiler was updated on October 24, 2026 and MyMQTT on October 24, 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.*