Reviews of Processing & p5.js iCompiler

By: riedel.wtf apps S.L. App

List of user reviews and ratings for Processing & p5.js iCompiler

Total ratings

3.50 (Rating count: 80)

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Review summary

Users praise the app as a strong, mobile-friendly Processing/p5.js editor that runs offline and supports JavaScript coding on a phone. However, most reviews focus on flaws: persistent data loss with unclear saving, debugging feedback hidden behind payments, limited project import (no folders/multi-file support), no clear save function, and editor usability issues. Overall, it’s valuable for mobile coding but burdened by bugs and monetization hurdles that hinder reliable, long-term use.

Pros

Excellent for mobile coding with Processing/p5.js (powerful mobile IDE)
Works offline without internet, enabling coding on the go
Good fit for JavaScript coding on mobile and testing sketches
Positive overall sentiment and appreciation for the app’s potential/end-user value

Cons

Frequent data loss and progress reverting; unreliable saving (no consistent save)
Lack of accessible debugging/error messages; compiler output often hidden behind a paywall
Limited project import capabilities (no folder import or multi-file project support)
No obvious manual save button and overall poor file management/saving workflow
Editor/IDE shortcomings (poor auto-indentation, problematic syntax highlighting, limited debugging)

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User Reviews

Recent rating average: 2.60

All time rating average: 3.50

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14% (7)

Date	Author	Comment
2025-08-24	SW*****	I bought premium or whatever for 10$ to add little games I made to my home screen like it said I could. When I went to “share to home screen” it wasn’t there! It wouldn’t show “share to Home Screen” like it said it would. I was extremely disappointed and should have seen that it was a scam or something. Although I do love coding in JavaScript!
I bought premium or whatever for 10$ to add little games I made to my home screen like it said I could. When I went to “share to home screen” it wasn’t there! It wouldn’t show “share to Home Screen” like it said it would. I was extremely disappointed and should have seen that it was a scam or something. Although I do love coding in JavaScript!
2025-06-30	im*****	This is by far the BEST iCompiler not just on apple app store but on the entire internet catering to the iPhone or Mobile device period far as cell phone!!! All it’s missing in my personal opinion is: 1.) GIF for animating sprites! 2.) The Ability to Rename my (p5.js) Projects! 3.) Ability to Duplicate a Project! 4.) And a more robust saving system to ensure my miner but tedious code corrections remain secure and doesn’t erase from data over time while I’m unaware (which unfortunately happens more often than what is convenient)! 5.) Oh and an undo / redo button would be absolutely delightful right now!!! 6.) And your conversion to home app (process) doesn’t work well! I’ll even go as far to say if you made all these updates and made a one time lifetime payment to acquire them and make a notice when we log in showing it’s available! I personally would pay for it! Note: A monthly fee would not work because you’d have a lot of angry customers (programmers) who would be unable to compile projects with features they can no longer afford to utilize like GIF etc! I really hope read this message and know that I mean well by it! Congratulations on your hard work and success thus far! Its a slow market but quality is rare to come by and trust me this is the most solid compiler for javascript probably on earth! And mist wont realize how much they need this until they have lol!!! And like why hasn’t Someone been created this! Try to hurry up and get those updates before the A.I. wave comes by! Everyone is looking to test their codes more on their phones! And all you need is one good wave and one good shout out and BOOM! Literally, Foot on the gas for life! It’s just like that! Peace & Blessings.
This is by far the BEST iCompiler not just on apple app store but on the entire internet catering to the iPhone or Mobile device period far as cell phone!!! All it’s missing in my personal opinion is: 1.) GIF for animating sprites! 2.) The Ability to Rename my (p5.js) Projects! 3.) Ability to Duplicate a Project! 4.) And a more robust saving system to ensure my miner but tedious code corrections remain secure and doesn’t erase from data over time while I’m unaware (which unfortunately happens more often than what is convenient)! 5.) Oh and an undo / redo button would be absolutely delightful right now!!! 6.) And your conversion to home app (process) doesn’t work well! I’ll even go as far to say if you made all these updates and made a one time lifetime payment to acquire them and make a notice when we log in showing it’s available! I personally would pay for it! Note: A monthly fee would not work because you’d have a lot of angry customers (programmers) who would be unable to compile projects with features they can no longer afford to utilize like GIF etc! I really hope read this message and know that I mean well by it! Congratulations on your hard work and success thus far! Its a slow market but quality is rare to come by and trust me this is the most solid compiler for javascript probably on earth! And mist wont realize how much they need this until they have lol!!! And like why hasn’t Someone been created this! Try to hurry up and get those updates before the A.I. wave comes by! Everyone is looking to test their codes more on their phones! And all you need is one good wave and one good shout out and BOOM! Literally, Foot on the gas for life! It’s just like that! Peace & Blessings.
2025-01-21	Pi*****	I have enjoyed writing Processing programs on my computer for about 3 years now. They are a great way for me to keep my skills polished and make things I can easily show others. Imagine my joy at finding out there is a way to do this on mobile! I immediately downloaded the app and even paid for the lifetime Pro features. I am now regretting this purchase. My biggest gripe with the app is just how limited it is. I should have taken it as a sign that ALL of the example projects are only one file long. I have tried to make multi-file projects work, but clearly that feature is just for show. Typing is also HORRENDOUS! Not only does it not auto-indent for you, but typing towards the middle of the file jumps the viewport to the bottom so you can’t even see what you’re typing. Overall, I can see that the projects I want to make will not work in this IDE. After reading reviews that are years old, I can see that the developers have abandoned this hot pile of garbage, and the pro content is not worth a single cent.
I have enjoyed writing Processing programs on my computer for about 3 years now. They are a great way for me to keep my skills polished and make things I can easily show others. Imagine my joy at finding out there is a way to do this on mobile! I immediately downloaded the app and even paid for the lifetime Pro features. I am now regretting this purchase. My biggest gripe with the app is just how limited it is. I should have taken it as a sign that ALL of the example projects are only one file long. I have tried to make multi-file projects work, but clearly that feature is just for show. Typing is also HORRENDOUS! Not only does it not auto-indent for you, but typing towards the middle of the file jumps the viewport to the bottom so you can’t even see what you’re typing. Overall, I can see that the projects I want to make will not work in this IDE. After reading reviews that are years old, I can see that the developers have abandoned this hot pile of garbage, and the pro content is not worth a single cent.
2024-09-22	MT*****	simple things fail silently - just a blank screen. errors that are trapped lead to an in-app purchase screen without even a hint of where the problem is. After you buy the upgrade, it might show where the error is and suggests you comment out the offending line. Useless. This product is scandalously bad and reflects poorly on the real processing software.
simple things fail silently - just a blank screen. errors that are trapped lead to an in-app purchase screen without even a hint of where the problem is. After you buy the upgrade, it might show where the error is and suggests you comment out the offending line. Useless. This product is scandalously bad and reflects poorly on the real processing software.
2024-09-19	Tr*****	At least allow free users to have basic debugging and make more complex error debugging for pro users.
At least allow free users to have basic debugging and make more complex error debugging for pro users.
2024-02-05	af*****	первый Российский комментарий
первый Российский комментарий
2024-01-28	Ti*****	It seemingly randomly reverts progress and there is no save option other than to export the script as a file. I will not pay for an app that deletes entire functions and classes that I spent days working with. This seems to happen more often when using multiple .pde tabs, and when switching tabs it often undoes all work done in the previous tab after the new tab was created. Horrible file management and the data loss is not worth it.
It seemingly randomly reverts progress and there is no save option other than to export the script as a file. I will not pay for an app that deletes entire functions and classes that I spent days working with. This seems to happen more often when using multiple .pde tabs, and when switching tabs it often undoes all work done in the previous tab after the new tab was created. Horrible file management and the data loss is not worth it.
2023-11-30	Ko*****	If you try to upload pde files and run them, they won’t work. You have to pay $25 to “unlock” compiler output to see what’s wrong. I’d rather make my own app than pay tax to see a compiler output.
If you try to upload pde files and run them, they won’t work. You have to pay $25 to “unlock” compiler output to see what’s wrong. I’d rather make my own app than pay tax to see a compiler output.
2022-12-23	ms*****	Imagine the least you could do for a Processing app, and you have this app. A huge disappointment. - No local reference (I can open the web reference by myself; it’s NOT THAT MUCH WORK) - No code complete/insight - the console is UNUSABLE for anything more than a single line - Not up to the standard of the current desktop app This is JUNK. PLEASE DO BETTER.
Imagine the least you could do for a Processing app, and you have this app. A huge disappointment. - No local reference (I can open the web reference by myself; it’s NOT THAT MUCH WORK) - No code complete/insight - the console is UNUSABLE for anything more than a single line - Not up to the standard of the current desktop app This is JUNK. PLEASE DO BETTER.
2022-05-29	Ma*****	I love the fact that I can use this editor to work on sketches when I don’t have internet available, but several times I’ve had a situation where I’ve done substantial work on a file and found out later that none of my changes were saved and the file has reverted to an earlier version.
I love the fact that I can use this editor to work on sketches when I don’t have internet available, but several times I’ve had a situation where I’ve done substantial work on a file and found out later that none of my changes were saved and the file has reverted to an earlier version.