You want a cheap solution, that’s fine. You want a professional solution, you need Adobe. Now, having said that, their iOS tools, and there are a lot of them, go from truly excellent, to not quite there yet. I find Affinity (mostly for iOS, but for the Mac it leaves something to be desired) to be too buggy, confusing and not really professional. Color setup is primitive, and a number of corrections are second rate. But that’s ok for those who don’t know any better, because they’re not in the commercial environment where it will be noticed, and rejected.