Comparison

Processing & p5.js iCompiler vs Flutter UI Templates

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head

Processing & p5.js iCompiler

#1 App for Processing & p5.js

Free

🛠️ Developer Tools

★ 3.580 ratingsView app →

Flutter UI Templates

Free

🛠️ Developer Tools

★ 4.47 ratingsView app →

About

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.

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

Read full description

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/

About

Flutter UI Templates

Explore a collection of user interface designs created with Flutter. This application serves as a visual showcase of what's possible with Flutter's design capabilities, allowing users to test and view different UI elements.

Highlights

Flutter UI design showcase
Interface testing
Visual demonstration
Sound null safety
UI element exploration

Features

Read full description

This app is solely for showing which designs can be done with Flutter. You can't actually use the app for any purpose other than testing the user interface. The app is built with sound null safety.

Screenshots

Processing & p5.js iCompiler4 screens

Flutter UI Templates4 screens

Verdict

The call

The clearest difference is rating: Flutter UI Templates at 4.4 against Processing & p5.js iCompiler's 3.5. Flutter UI Templates also leads on review sentiment (100% vs 58%) and in-app purchases (none vs 5). Processing & p5.js iCompiler's advantage is ratings volume (80 vs 7) and iOS requirement (11.0 vs 15.0). On price, update cadence, ads and device support 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

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Processing & p5.js iCompiler sells 5 in-app purchases, starting at $3.49 per month. Flutter UI Templates asks for nothing beyond the download.

ReceptionRating · Positive reviews · Number of ratings

Flutter UI Templates 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 7, 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 100% of Flutter UI Templates's.

UpkeepUpdate frequency

Processing & p5.js iCompiler ships an update every 5 weeks, Flutter UI Templates every 2 months. The most recent releases landed on September 26, 2026 and September 27, 2026 respectively.

Scorecard6 real differences · 4 level

Processing & p5.js iCompiler versus Flutter UI Templates: the parameters behind the verdict, then further details
Parameter	Processing & p5.js iCompiler	Flutter UI Templates
Price	Free	Free
Rating	3.5 (80 ratings)	4.4 (7 ratings) — better
Positive reviews	58.0% of reviews	100.0% of reviews — better
Number of ratings	80 — better	7
Update frequency	Every 5 weeks — better	Every 2 months
Ads	No	No
In-app purchases	Yes	No — better
Monetization	Freemium	Free — better
Devices	iPhone, iPad, iPod	iPhone, iPad, iPod
Requires iOS	11.0 — better	15.0
Further details — not scored
Size	33 MB	30 MB
Age rating	4+	4+
Developer	riedel.wtf apps S.L.	Joachim Tobias Nohl

Customer experience

Processing & p5.js iCompiler

All ratings80 ratings

Positive58.8%

Neutral8.8%

Negative32.5%

Written reviews162 reviews

Positive58.0%

Neutral12.3%

Negative29.6%

Flutter UI Templates

All ratings7 ratings

Positive85.7%

Neutral0.0%

Negative14.3%

Written reviews16 reviews

Positive100.0%

Neutral0.0%

Negative0.0%

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

Show 15 more

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

Show 15 more

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

Flutter UI Templates

Not enough reviews yet to summarise bugs or requests.

In-app purchases

5 purchases

Processing & p5.js iCompiler

Subscriptions2

Processing Pro (Monthly)$3.491 Month
Processing Pro (Annual)$9.991 Year

One-time3

Processing for iOS Tip$4.99
Processing Pro Lifetime Unlock$25.99
Processing for iOS Tip$99.99

None

Flutter UI Templates

No in-app purchases

Questions

Is Processing & p5.js iCompiler free?

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

Is Flutter UI Templates free?

Flutter UI Templates is free to download, with no in-app purchases.

Which has better reviews, Processing & p5.js iCompiler or Flutter UI Templates?

Flutter UI Templates is rated higher. Processing & p5.js iCompiler averages 3.5 out of 5 from 80 ratings, while Flutter UI Templates averages 4.4 from 7 ratings.

Do Processing & p5.js iCompiler or Flutter UI Templates have ads?

Neither Processing & p5.js iCompiler nor Flutter UI Templates shows ads.

Which is updated more often, Processing & p5.js iCompiler or Flutter UI Templates?

Processing & p5.js iCompiler ships an update every 5 weeks, and Flutter UI Templates every 2 months. Most recently, Processing & p5.js iCompiler was updated on September 26, 2026 and Flutter UI Templates on September 27, 2026.