Processing & p5.js iCompiler vs Programmer Calculator
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/
Programmer Calculator
This tool assists developers with number base conversions and CRC calculations for strings and hex bytes. Additional features are planned for future updates.
- Number base conversion
- CRC calculation
- String to hex conversion
- Hex byte CRC calculation
- Developer support tool
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Programmer calculator is a tool to support developers to convert numbers between different radix, to calculate CRC of strings or hex bytes. More features is under development and will be delivered in future.
Screenshots
Verdict
The clearest difference is rating: Programmer Calculator at 4.6 against Processing & p5.js iCompiler's 3.6. Programmer Calculator also leads on update cadence (fortnightly vs every 2 months). Processing & p5.js iCompiler's advantage is review sentiment (58% vs 42%). On price, ratings volume, ads and in-app purchases 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 Programmer Calculator sells 3 one-off in-app purchases. Whichever you choose, the download price is not the number that matters.
Programmer Calculator holds the better App Store score, 4.6 against 3.6. Both are backed by a comparable volume of ratings — 84 and 33 respectively. Written reviews complicate that: 58% of Processing & p5.js iCompiler's written reviews are positive against 42% of Programmer Calculator'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, Programmer Calculator fortnightly. The most recent releases landed on November 1, 2026 and November 3, 2026 respectively.
| Parameter | Processing & p5.js iCompiler | Programmer Calculator |
|---|---|---|
| Price | Free | Free |
| Rating | 3.6 (84 ratings) | 4.6 (33 ratings) — better |
| Positive reviews | 58.0% of reviews — better | 42.1% of reviews |
| Number of ratings | 84 — better | 33 |
| Update frequency | Every 2 months | Fortnightly — better |
| Ads | No | No |
| In-app purchases | Yes | Yes |
| Monetization | Freemium | Free with in-app purchases |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Requires iOS | 15.0 | 14.0 — better |
| Further details — not scored | ||
| Size | 10 MB | 5 MB |
| Age rating | 4+ | 4+ |
| Developer | riedel.wtf apps S.L. | 永超 侯 |
Customer experience
Processing & p5.js iCompiler
Programmer Calculator
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
Programmer Calculator
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
Programmer Calculator
- A coke$0.99
- A cup of coffee$2.99
- A big meal$5.99
Questions
Is Processing & p5.js iCompiler free?
Is Programmer Calculator free?
Which has better reviews, Processing & p5.js iCompiler or Programmer Calculator?
Do Processing & p5.js iCompiler or Programmer Calculator have ads?
Which is updated more often, Processing & p5.js iCompiler or Programmer Calculator?
Other comparisons
