What is an SDK?
An SDK, or software development kit, is a set of tools that allows a developer or team the ability to build a custom app, which can be added on (or connected to) another program.
Why Are SDKs Important?
SDKs allow programmers to develop apps for a specific platform. This means that SDKs create the opportunity to enhance apps with more functionality, as well as include ads, push notifications and more onto the system. Without an SDK, a lot of this pre-built functionality would have to be made from scratch. They not only let you to create new tools efficiently but make the process easy for everyone, as everything is pre-built. New features just need to be made compatible with the current system.
Reference: “Adjust,” Retrieved – 23 April 2018