Understanding App ID and Bundle ID in iOS Development

I’ve Always Been Confused

Photo by Artem Beliaikin on Unsplash

There are a couple of key identifiers in iOS development that are often misunderstood.

These identifiers are crucial, but I think it is time to break down what App ID and Bundle ID is, how they work and why they are essential to building iOS applications.

In Depth

App ID and Bundle ID are key identifiers that serve different purposes.

So let’s break them down, identify (ha) how they work and why they’re essential to building applications.

The App ID

An App ID is an identifier that Apple uses to recognize one or more apps created by a development team. The App ID is used to enable services, such as Push Notifications or Sign in with Apple.

Structure

Prefix: A 10-character alphanumeric string (the Team ID) that is unique to your Apple Developer account.