> For the complete documentation index, see [llms.txt](https://docs.giga.store/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.giga.store/ios/introduction.md).

# First Steps

## Prerequisites

You need a [Gigastore](https://dent.giga.store) account to use the SDK.

Make sure that your Gigastore [inventory](https://dent.giga.store/#/your-store/inventory) is filled up. Using this SDK you can pick (activate) an eSIM from your inventory and install eSIM profiles through your app on a user's device.

For the initialization, you need an SDK Key found on [Gigastore](https://dent.giga.store/#/sdk/ios-sdk).

## Technical Requirements

{% hint style="warning" %}
The eSIM installation works only iOS 12.1+
{% endhint %}

* iOS 11.0+
* Xcode 12+
* Swift 5.x+

## Supported devices

* iPhone 15, iPhone 15 Plus, iPhone 15 Pro, iPhone 15 Pro Max
* iPhone 14, iPhone 14 Plus, iPhone 14 Pro, iPhone 14 Pro Max
* iPhone 13, iPhone 13 Pro, iPhone 13 Pro Max, iPhone 13 Mini
* iPhone 12, iPhone 12 Pro, iPhone 12 Pro Max, iPhone 12 Mini
* iPhone SE (2020, 2022)
* iPhone 11, iPhone 11 Pro, iPhone 11 Pro Max
* iPhone XR, iPhone XS, iPhone XS Max