# Processing & p5.js iCompiler vs TrashBox

The clearest difference is price: Processing & p5.js iCompiler at Free against TrashBox's $2.99. Processing & p5.js iCompiler also leads on iOS requirement (15.0 vs 17.0). TrashBox's advantage is in-app purchases (none vs 5) and update cadence (every 5 days vs every 2 months). On ads and device support there is nothing between them.

Processing & p5.js iCompiler is free to download; TrashBox costs $2.99 up front. Processing & p5.js iCompiler sells 5 in-app purchases, starting at $3.49 per month. TrashBox asks for nothing beyond the download.

Processing & p5.js iCompiler ships an update every 2 months, TrashBox every 5 days. The most recent releases landed on November 6, 2026 and October 31, 2026 respectively.

## The numbers

| Metric | Processing & p5.js iCompiler | TrashBox |
| --- | --- | --- |
| Price | **Free** | $2.99 |
| Rating | **[3.6 (85 ratings)](https://appshunter.io/ios/app/processing-and-p5js-icompiler/id648955851/reviews)** | — |
| Number of ratings | **85** | — |
| Positive reviews | 58.0% of reviews | — |
| In-app purchases | Yes | **No** |
| Ads | No | No |
| Update frequency | Every 2 months | **Every 5 days** |
| Monetization | Freemium | — |
| Size | 10 MB | 4 MB |
| Requires iOS | **15.0** | 17.0 |
| Devices | **iPhone, iPad, iPod** | iPhone, iPad |
| Age rating | 4+ | 4+ |
| Developer | [riedel.wtf apps S.L.](https://appshunter.io/developer/517545753) | [Nathan Baughman](https://appshunter.io/developer/1802995512) |

## 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


### TrashBox

[App page](https://appshunter.io/ios/app/trashbox-80/id6814197360)

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

**In-app purchases:** none


## Frequently asked questions

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

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

### Is TrashBox free?

TrashBox costs $2.99, with no in-app purchases.

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

Neither Processing & p5.js iCompiler nor TrashBox shows ads.

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

Processing & p5.js iCompiler ships an update every 2 months, and TrashBox every 5 days. Most recently, Processing & p5.js iCompiler was updated on November 6, 2026 and TrashBox on October 31, 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.*