> ## Documentation Index
> Fetch the complete documentation index at: https://docs.10x.app/llms.txt
> Use this file to discover all available pages before exploring further.

# Sign in to 10x and complete account setup

> Learn how to complete the system check, sign in on first launch with Google, manage your session, and sign out from Settings when you need to.

When you open 10x for the first time, the app runs a quick system check to confirm that Xcode and an iOS 26+ simulator are ready on your Mac. Once both requirements pass, the sign-in screen appears and you can connect your account before building your first app.

<Note>
  You need a 10x account to use AI features and to sync your projects. Without signing in, only offline local development is available.
</Note>

## System check

Before the sign-in options appear, 10x verifies two requirements:

* **Xcode installed** — Xcode must be installed from the App Store and opened at least once so its build tools are licensed and ready.
* **iOS 26+ simulator available** — An iPhone simulator running iOS 26 or later must exist in your Xcode installation.

If either check fails, the screen shows an action button next to the failing requirement. Click it to let 10x guide you through the fix — for example, **Get Xcode** opens the App Store, **Download iOS** downloads the simulator runtime, and **Create iPhone** creates a simulator device. The screen re-checks automatically every few seconds, so it updates as soon as your environment is ready.

Once both checks show a green checkmark, click **Continue** to reach the sign-in step.

## Sign in

<Steps>
  <Step title="Open 10x">
    Launch 10x from your Applications folder. The system check screen appears automatically on first launch.
  </Step>

  <Step title="Pass the system check">
    Wait for both requirements — **Xcode installed** and **iOS 26+ simulator available** — to show a green checkmark. Resolve any failures using the action buttons provided.
  </Step>

  <Step title="Sign in with Google">
    Click **Sign in with Google**. 10x opens a browser window for you to complete Google sign-in. Return to 10x once the browser confirms you are signed in.
  </Step>
</Steps>

<Tip>
  If the browser does not open automatically, check that your default browser is set in **System Settings > Desktop & Dock > Default web browser**.
</Tip>

## Sign out

To sign out, open **Settings** from the 10x menu bar or the gear icon in the app, then find the sign-out option in the **General** section.

<AccordionGroup>
  <Accordion title="Continue without signing in (local development)">
    A **Continue without Auth** path is available for local development workflows where you do not need AI generation or project sync. This mode limits you to offline features only and is not intended for regular use.
  </Accordion>

  <Accordion title="The system check screen keeps showing 'Needs Setup'">
    Make sure Xcode is fully installed and that you have opened it at least once after installation to accept the license agreement. If the iOS simulator is missing, click **Download iOS** and wait for the download to finish — this can take several minutes depending on your connection speed. The screen checks again automatically; you do not need to refresh it manually.
  </Accordion>

  <Accordion title="Sign-in completes in the browser but 10x does not update">
    Close and reopen 10x. If the problem persists, click **Back to system check** at the bottom of the sign-in screen and then click **Continue** again to retry.
  </Accordion>
</AccordionGroup>