---
title: "Step 1: Installing the SDK"
slug: "step-1-installing-the-sdk-ios"
updated: 2026-05-22T16:09:37Z
published: 2026-05-22T16:09:37Z
canonical: "developer.upgrade.com/step-1-installing-the-sdk-ios"
---

> ## Documentation Index
> Fetch the complete documentation index at: https://developer.upgrade.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Step 1: Installing the SDK

### Installing the SDK

Partners will receive the **SDK** as a .**zip** file from a Flex Pay representative.