Apple increasing the size of apps from 2 GB to 4 GB

The size limit of an app package submitted through iTunes Connect has increased from 2 GB to 4 GB, so you can include more media in your submission and provide a more complete, rich user experience upon installation. Please keep in mind that this change does not affect the cellular network delivery size limit of 100 MB.

This is good. As we move farther down the road with apps, they are becoming more complex and require more space. Science apps and games can be especially large, but they are both popular categories.