Processing & p5.js iCompiler vs Shaderly
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Processing & p5.js iCompiler
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.
- 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)
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Compose and compile your Processing & p5.js projects right on your phone or iPad, wherever your are! Export your Processing projects as App on your home screen: 1. Select an App icon for your Processing project. 2. Add it to your home screen. You can now use the app offline, just like any other app! This app is already being used in high schools and universities to teach and learn Processing & p5.js. Your code is highlighted and formatted for excellent reading-comfort. Processing Pro allows you to see which parts of your code are causing problems. 3D sketches and games are supported. This is not an official app by processing.org or p5.js Available subscription: Processing Pro, offers additional functionalities, such as exporting your sketches as apps. Trailer Music: Circle of Alchemists Privacy and Terms: http://processing-app.org/terms/
Shaderly
Edit OpenGL ES 2.0 shaders in real-time for generative art and game development. Shaders created can be directly used in SpriteKit projects. Features include code highlighting, live previews, and sharing options.
- Real-time shader editing
- SpriteKit SKShader compatibility
- Code highlighting
- Live preview (resizable, fullscreen, picture-in-picture)
- Save and share shader videos/snapshots
- Shader thumbnails and previews
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Shaderly is real-time OpenGL ES 2.0 shader editor. It runs on SpriteKit SKShader, so all shaders you made with Shaderly can be used later in your SpriteKit projects. Great tool for prototyping effects and for making generative art. I hope this app is useful to you. The app was born as a result of the desire to continue working on my game while sitting in a bomb shelter without my computer. And now I'm creating it for you. Features: • Code highlighting • Live preview (resizable, fullscreen, picture-in-picture) • Save and share shader video or snapshot • Shader Thumbnails • Shader Previews
Screenshots
Verdict
The clearest difference is rating: Shaderly at 4.4 against Processing & p5.js iCompiler's 3.5. Shaderly also leads on review sentiment (80% vs 58%). Processing & p5.js iCompiler's advantage is update cadence (every 2 months vs every 13 months) and ratings volume (80 vs 8). On price, ads, in-app purchases and monetization model there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Processing & p5.js iCompiler sells 5 in-app purchases, starting at $3.49 per month and Shaderly sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Shaderly holds the better App Store score, 4.4 against 3.5. That said, the two scores are not equally well evidenced: Processing & p5.js iCompiler has 80 ratings behind it against 8, so its average is the more settled of the two. Written reviews point the same way: 58% of Processing & p5.js iCompiler's written reviews are positive against 80% of Shaderly's.
Processing & p5.js iCompiler ships an update every 2 months, Shaderly every 13 months. The most recent releases landed on October 16, 2026 and October 8, 2026 respectively.
| Parameter | Processing & p5.js iCompiler | Shaderly |
|---|---|---|
| Price | Free | Free |
| Rating | 3.5 (80 ratings) | 4.4 (8 ratings) — better |
| Positive reviews | 58.0% of reviews | 80.0% of reviews — better |
| Number of ratings | 80 — better | 8 |
| Update frequency | Every 2 months — better | Every 13 months |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Free with in-app purchases |
| Devices | iPhone, iPad, iPod — better | iPhone, iPad |
| Requires iOS | 15.0 — better | 16.0 |
| Further details — not scored | ||
| Size | 10 MB | 7 MB |
| Age rating | 4+ | 4+ |
| Developer | riedel.wtf apps S.L. | Dmytro Denys |
Customer experience
Processing & p5.js iCompiler
Shaderly
Bugs and requests
Processing & p5.js iCompiler
Reported bugs
20 issues- 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
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- Else statements break code formatting
- Try/catch blocks don't work properly
- Cursor position jumps unexpectedly while typing
- Screen scrolls to bottom when typing mid-file
- Swipe-to-go-back gesture interferes with drawing
- mouseClicked() event fires multiple times per click
- Import folder feature doesn't work
- Cannot use numbers/underscores in project names
- blendMode() and other complex functions fail
- Silent failures with blank screen output
- Inconsistent error highlighting
- Typing lag with large projects (700+ lines)
- Example project code disappeared after updates
- Dialog boxes appear in German
- About and new project buttons invisible in light mode
Requested features
20 requests- Free basic error messages for all users
- Undo/redo functionality
- Project renaming capability
- Project duplication feature
- Robust auto-save and backup system
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- GIF animation support for sprites
- Library import and management system
- Landscape mode support
- Find and replace functionality
- Console output for debugging
- Settings/preferences menu
- File organization with folders
- Project thumbnails
- Built-in documentation/reference
- Processing to p5.js conversion tool
- Ability to import entire project folders
- Font size customization
- Fullscreen mode for screenshots
- PVector class support
- Pixel density optimization for Retina displays
Shaderly
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Processing & p5.js iCompiler
- Processing Pro (Monthly)$3.491 Month
- Processing Pro (Annual)$9.991 Year
- Processing for iOS Tip$4.99
- Processing Pro Lifetime Unlock$25.99
- Processing for iOS Tip$99.99
Shaderly
- Donate Coffee$1.99
- Donate Three Coffees$4.99
- Donate Five Coffees$9.99
Questions
Is Processing & p5.js iCompiler free?
Is Shaderly free?
Which has better reviews, Processing & p5.js iCompiler or Shaderly?
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Which is updated more often, Processing & p5.js iCompiler or Shaderly?
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