FaceTime, I hardly knew ye.
Of course, there is no shortage of video calling and chatting apps.
While Skype, Google Hangouts and the others struggle to recreate their platforms for mobile, FaceTime was born on and for the iPhone, and it makes a huge difference.
The FaceTime app was introduced with the iPhone 4 in 2010, and hasn't changed much since. In fact, its simplicity is essential to FaceTime's appeal.
Far too often, apps with video-calling features — like Facebook and Kik — add layers of complexity that might be pretty impressive when you first discover them, but are easily forgotten about. The reliability and simplicity of the FaceTime app has always made it the least painful means of video chatting on a mobile device, and I am not expecting to find an adequate replacement any time soon.
AirDrop will always have a special place in my heart.
As a person who, at various points in the last five years, has held paid accounts with Google Drive, Dropbox, and Box, all while also paying for additional iCloud storage, I personally rely on AirDrop to move photos, videos and whatever else between my phone and computer all the time.
With AirDrop, there is no limit to the size or number of files that a user can transfer across devices, and no need for extra cloud storage, which makes it one of the easiest ways to send whatever is taking up storage on my iPhone safely and quickly onto my other devices.
The only drawback being, of course, that the devices need to be close by with Bluetooth turned on, unlike the storage and sharing alternatives mentioned above.
I have to be honest with myself: I'm going to miss the whole Apple ecosystem.
It's no coincidence that all of these features are uniquely designed to bolster the Apple ecosystem and inadvertently discourage the mixing and matching of different tech brands.
Apple's complete collection of gadgets is undoubtedly impressive, especially when considering the complementary ways they all work together.
Leaving behind Apple's trademark cohesion that makes all of their devices work in tandem is going to be the biggest adjustment for me as I move on in my smartphone journey.
Google, Samsung and Microsoft have all had valiant efforts to build out their own selections of personal devices that come with brand-specific features, but all are undeniably playing catch-up to Apple's empire.
And as smart devices become more incorporated into our homes and workplaces via gadgets like smart speakers, TVs, and even doorbells, that congruence is going be a huge deciding factor for consumers in the years to come.