Are there any free Apex codes?

I'm curious, are there any Apex codes available for free? I've been hearing about the latest updates and I'm eager to try out some of the new features, but I'm not sure if I have to spend money to access them. If there are any ways to get free Apex codes, I'd love to hear about them. Is there a specific website or promotion that offers them? Or perhaps there's a way to earn them through in-game achievements? I'm really interested in learning more about this, so any information you can provide would be greatly appreciated.