Some apps can’t do parallel features because of rules on the App Store. I remember several years ago a commercial AV software sold an App Store version that was

Some apps can’t do parallel features because of rules on the App Store. I remember several years ago a commercial AV software sold an App Store version that was nerfed for true AV scanning which it’s non App Store has the full feature set. Apple requires (or maybe they don’t have that limitation anymore) that an application not touch system services if it’s sold in the App Store. Which for AV that would fit the bill. Personally for a while the macOS App Store was riddled with sketchy Chinese apps that looked like knock offs of the real apps. Or there are apps that do the same thing as a more expensive commercial one. Personally I’ve found a few gems in both App Stores. Hands down I love Pixelmator on iOS and macOS. I’d gladly pay for more apps built with good quality.