What is the difference between an SDK and an API

An API is an interface for communication between systems. An SDK is a full toolkit that often includes APIs plus code samples, libraries, and tools.

Do all apps need an SDK

No. Simple apps can be built without external SDKs, but most modern apps rely on them for analytics, payments, ads, messaging, or other features.

Does an SDK slow down an app

A well built SDK should have minimal performance impact. Poorly built SDKs can affect speed, stability, or battery life, which is why quality matters.

Is an SDK only for mobile apps

Not at all. SDKs exist for desktop software, game engines, browsers, IoT devices, cloud services, and many other environments.

How is an SDK installed

Usually by adding a library through a package manager, importing a framework, or including a set of files in the project. Integration guides explain the exact process.

Can multiple SDKs be used in one app

Yes. Most apps use several SDKs at once, as long as they are compatible and do not conflict with each other.

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