> For the complete documentation index, see [llms.txt](https://wiki.zephyr-sim.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://wiki.zephyr-sim.com/getting-started/little-arms-launcher/installation/macos.md).

# macOS

Congratulations! 🎊 You've created a Zephyr account and you're ready to download and install Zephyr! If you need to read instructions on how to [create a Zephyr account, click here.](/getting-started/create-an-account.md)

First you'll need to download the Little Arms Launcher which is used to install Zephyr and keep it up to date.  

Login by going to <https://zephyr-sim.com/login>

Once logged in and at the Dashboard, the top navigation bar will display an orange <mark style="color:orange;">**Get Zephyr**</mark> button. &#x20;

Click it.

<figure><img src="https://1836517361-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fb4gMJ8PjT5QccaZNi3oB%2Fuploads%2FvTPfAELUXvFZV6aEhwe4%2Fimage.png?alt=media&amp;token=4bbf4da2-61fc-4246-a996-5e88e77cc96e" alt=""><figcaption></figcaption></figure>

Whether you are using Windows or macOS will be automatically detected and the correct installer version for the Little Arms Launcher will be downloaded.&#x20;

Navigate to where you downloaded the `Little-Arms-Launcher-x.x.x.dmg` and double click on it.

<figure><img src="https://1836517361-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fb4gMJ8PjT5QccaZNi3oB%2Fuploads%2F7KGz7l4cFjhf9HORITWH%2Fimage.png?alt=media&amp;token=74b3d02c-1728-43cf-a57a-1156fde60f72" alt="Installing Little Arms Launcher in the Applications folder"><figcaption></figcaption></figure>

Drag and drop the Little Arms Launcher program into the Applications folder.

Then Navigate to your Applications folder and double click the Little Arms Launcher Program.

<figure><img src="https://1836517361-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fb4gMJ8PjT5QccaZNi3oB%2Fuploads%2Ff0PxViXwCV1pm92vGyde%2Fimage.png?alt=media&amp;token=8dbf8c44-8b91-4b0c-9bc8-34f49dbd7d06" alt="Little Arms Launcher Application Location"><figcaption></figcaption></figure>

If you are prompted with a window saying&#x20;

> "Little Arms Launcher" is an app downloaded from the internet are you sure you want to open it?

&#x20;click open.

<figure><img src="https://1836517361-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fb4gMJ8PjT5QccaZNi3oB%2Fuploads%2FFuxuHQcWzzAs79pFJypj%2Fimage.png?alt=media&amp;token=26b0715f-0239-4cb0-b9ae-3893821da109" alt="Little Arms Launcher First Launch Warning" width="372"><figcaption></figcaption></figure>

Once it opens, click "Sign In" and a new browser window will pop up in the system's default browser.

<figure><img src="https://1836517361-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fb4gMJ8PjT5QccaZNi3oB%2Fuploads%2FfvSYj8ONin17IOp6b4Yz%2Fimage.png?alt=media&amp;token=23a64322-bce0-4b39-806b-04d23ca9e5be" alt="Little Arms Launcher Sign In Screen"><figcaption></figcaption></figure>

Sign In using your Zephyr credentials.

<figure><img src="https://1836517361-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fb4gMJ8PjT5QccaZNi3oB%2Fuploads%2FnrXKloxiEBA55SMD6c40%2Fimage.png?alt=media&amp;token=0d744f96-6ba4-4fea-a515-1f6efaa95885" alt="Browser Sign In Screen" width="375"><figcaption></figcaption></figure>

Once complete, you will be prompted by the browser to be redirected back to the Little Arms Launcher. Click "Allow" or "Always Allow".

<figure><img src="https://1836517361-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fb4gMJ8PjT5QccaZNi3oB%2Fuploads%2FW2alrR7Zn36ReHY9o5Wr%2Fimage.png?alt=media&amp;token=3d61cba5-9a9a-4a4e-831b-02a8e02e7870" alt="Little Arms Launcher Sign In Deep Link Prompt" width="375"><figcaption></figcaption></figure>

You will be prompted to select the preferred drive you'd like to use to install applications downloaded through the Little Arms Launcher.  By default this will be Macintosh HD. If you'd like to keep Zephyr stored on a different drive, you can choose to do so now.  It is also possible to do this later through the Settings section of the Little Arms Launcher.  If you are happy keeping Zephyr in the default Macintosh HD drive, simply click Continue.

<figure><img src="https://1836517361-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fb4gMJ8PjT5QccaZNi3oB%2Fuploads%2FAswkmRJkmmaUmUQS2FT3%2Fimage.png?alt=media&amp;token=a160d72d-f8d4-43da-a3d6-3bded2612631" alt=""><figcaption></figcaption></figure>

You are now ready to Install Zephyr! Click the big green Install button to begin the download and installation process.  This could take a while depending on how fast your internet connection is, and your hardware specifications.&#x20;

<figure><img src="https://1836517361-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fb4gMJ8PjT5QccaZNi3oB%2Fuploads%2FqoMUEpCyB3JvZsfoVB6u%2Fimage.png?alt=media&amp;token=303ca08d-0de9-40fa-b2d1-2f064a13fe4c" alt=""><figcaption></figcaption></figure>

Thats it! You're ready to start flying! Click the Launch button to start the Zephyr Simulator.

<figure><img src="https://1836517361-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2Fb4gMJ8PjT5QccaZNi3oB%2Fuploads%2FMOxl6wjNYJgehikH0hwA%2Fimage.png?alt=media&amp;token=4e9e4152-8ee7-4536-8e01-aca15260dad6" alt=""><figcaption></figcaption></figure>

See you in the Skies!