As a disclaimer to this I actually pay for ProtonMail and OSMaps because they’re products I use daily and feel that they deserve the money, however they do have free tiers and there are free alternatives to most Google software. I’d strongly suggest looking into de-Googling, there’s an entire subreddit dedicated to it.
If you don't have an iPhone/ iPad/ Mac, how else would Apple's privacy/ tracking policies apply to you?
We're talking about advertising and apps on iOS, those apps are absolutely free (and ad free) on any devices under discussion here. Otherwise, please feel free to ask about any other specific app on any other platform, because in almost all cases there is a free solution without advertising.
The idea that the world needs to run on advertising is nonsense. Likewise that developers/ end users somehow "need" advertising.