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

# Check and Manage Your SimSIM Data Usage

> Monitor your remaining data balance, understand usage alerts, and keep your connection running smoothly throughout your trip.

The SimSIM app gives you a clear view of your data balance at all times. You can check how much is left, get notified before you run out, and top up without interrupting your trip — all from a single screen.

## Checking your balance

<Steps>
  <Step title="Open the SimSIM app">
    Launch SimSIM on your phone.
  </Step>

  <Step title="View your active plan">
    Your active plan and remaining data allowance are displayed on the home screen as soon as you open the app.
  </Step>

  <Step title="See expiry and usage details">
    Tap on a plan to view its expiry date and usage history in full.
  </Step>
</Steps>

## Low-data notifications

SimSIM automatically notifies you when your data balance is getting low, giving you enough time to top up before you lose your connection. Make sure notifications are enabled for the SimSIM app in your phone's settings so you don't miss the alert.

## Data tips for travelers

<AccordionGroup>
  <Accordion title="Download maps offline">
    Google Maps and Apple Maps allow you to download maps for offline use. Do this on Wi-Fi before you travel to save your SimSIM data for times when you really need a connection.
  </Accordion>

  <Accordion title="Use Wi-Fi when available">
    Connect to hotel and café Wi-Fi for streaming and large downloads. Use your SimSIM data for navigation, messaging, and quick lookups when you're on the move.
  </Accordion>

  <Accordion title="Turn off background refresh">
    On iOS, go to **Settings → General → Background App Refresh** and disable it for data-heavy apps like social media and cloud sync. This prevents apps from quietly consuming your allowance in the background.
  </Accordion>

  <Accordion title="Disable automatic video quality">
    Set YouTube, Instagram, and similar apps to a lower default video quality or enable their built-in data saver mode. High-definition video is one of the fastest ways to drain a data plan.
  </Accordion>
</AccordionGroup>

## Data does not roll over

<Note>
  Unused data from a plan does not carry over after expiry. Your plan's validity period is shown in the app — top up before it expires if you need more time or data.
</Note>


## Related topics

- [Manage Your SimSIM Account and Profile](/account-management.md)
- [Top Up Your SimSIM Data Mid-Trip](/topping-up.md)