The program downloaded/updated very quickly, Did I get everything.

There are tools that make iPhone development faster and easier for the engineers but we don’t use them.
These include PhoneGap , Xamarin, Cordova, Ionic. They do shorten the development time of an iPhone app but the problem is the code is bloated. When we develop programs, we use pure native code (objective-C).  This also explains why our file size is much smaller than our competitors even though we have many of the features they have.