The webapps you have used are slow.
This generalization is changing and will continue to change the better Apple/iOS treat PWAs.
https://news.ycombinator.com/item?id=31148708
This kind of guidelines also kind of do not treat PWA style apps well, or could even prevent adding app that is similar to another app already existing at App Store:
https://developer.apple.com/app-store/review/guidelines/
> 4.2 Minimum Functionality
> Your app should include features, content, and UI that elevate it beyond a repackaged website. If your app is not particularly useful, unique, or “app-like,” it doesn’t belong on the App Store. If your App doesn’t provide some sort of lasting entertainment value or adequate utility, it may not be accepted. Apps that are simply a song or movie should be submitted to the iTunes Store. Apps that are simply a book or game guide should be submitted to the Apple Books Store.
Are there any widespread apps that are more efficient than these? I really would like to know.
I have a fairly big app and while I'm not sure how to measure that I ran "about:memory" in Firefox and added up everything I saw for the app and it came out to be about 30mb.
My Mac's Finder says the directory with all the code is 9.9 MB.
That app is plenty fast, even on my old late `09 Mac Mini Mac running 10.11.6 with just 4gb ram.
Widespread apps like Slack, routinely use several hundred megabytes of RAM.
I really hope this is not the case.
The web is fine, but nothing beats native implementations. Web apps are slow and bloated in comparison to a true native app. And I for one cannot believe that we have accepted that simple things like note taking or chat apps need several hundreds of megabytes of RAM to run. Madness.