When comparing Red/System vs Objective-C, the Slant community recommends Red/System for most people. In the question“What are the best systems programming languages?” Red/System is ranked 15th while Objective-C is ranked 22nd. The most important reason people chose Red/System is:
Red has built-in support for concurrency and multi-core CPUs.
Ranked in these QuestionsQuestion Ranking
Pros
Pro Built-in support for concurrency
Red has built-in support for concurrency and multi-core CPUs.
Pro Well Documented
Objective-C's documentation exists on Apple's website, and explains language features in detail.
Pro Develop Apple applications
Similar to C# and Java, but used to develop native applications for Apple hardware.
Pro Objective-C supports an open style of dynamic binding
A style that can accommodate a simple architecture for interactive user interfaces.
Cons
Con Doesn't work on 64-bit OSes
Still hasn't upgraded to be 64-bit OS compatible.
Con Not ready for production
Red is still on version 0.6.0. Which means that it still has some way to go before being used in production and in large projects.
Con Odd Syntax
Objective C's syntax is very alien to other languages. Learning Objective-C first will fail to expose you to a syntax style that would be relatively familiar in almost any other language.
Con Might as well learn Swift
Swift works almost anywhere Objective C does, and it was designed to replace Objective C.
Con One of the biggest mistakes ever.
It was meant to be one of the C-style languages, but has such bad syntax design it actually is the odd duck.
Con Apple-centric and obsolete
Con Tied into Apple's eco-system.
Con More Technical
To be able to do basic tasks in Objective-C requires a strong understanding of programming.
Con Requires Understanding of C-language.
Objective-C is built on top of C, and as such, requires at least a basic understanding of how to program in C.