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Lookout Mobile Security is an app available for Android and iOS that helps protect your device and personal data.

Lookout features

There are two versions of Lookout:

  • A free version that provides essential security features (preinstalled on Android; download from the App Store for iOS)
  • A premium version that offers additional, advanced security features. This version is available separately for an additional monthly or yearly fee from your device's app store.

Use Lookout to:

  • Remotely sound an alarm on your device (even when it’s in silent mode).
  • Find your device on a map.
  • Automatically save your device’s location before the battery dies, so you have a better chance of locating it, even after the device is offline.
  • Post a custom locked-screen message to help get your device back.
  • Alert you if your device’s operating system is out-of-date or insecure and helps you configure your security settings.
  • Protects your device from viruses, malware, and spyware.
  • Initiate real-time or scheduled security scans to automatically get security updates.
  • Find your lost or stolen device with GPS. If it's nearby, use Scream to sound an alarm, even if the device is in silent mode.
  • Schedule backups to save or restore your contacts on the Lookout website.

Lookout Premium additional features

  • Get Theft Alerts emailed to you when Lookout finds activity that could mean your device was stolen.
  • Safe Browsing scans every site you visit, protecting you from possible phishing attempts and other online threats.
  • Use Privacy Advisor to scan all apps that access personal information, such as your location, messages, and contact.
  • Schedule backups to save or restore your contacts, photos, and call history.
  • If your device is lost or stolen, you can:
    • Remotely wipe your personal data and SD card.
    • Remotely lock your device.


To use Lookout, make sure you have:

  • Android or iOS device with a T-Mobile data plan
  • Data or Wi-Fi connection to locate your phone
  • Content blocking disabled on your account

Your Lookout account


Create account

  1. Open Lookout.
  2. Select Get Started.
  3. On the Security page, confirm Enable Security is selected and then select Next.
  4. On the Backup page, confirm Enable Backup is selected and then select Next.
  5. In the Missing Device page, select Enable GPA & Wireless Location.
  6. Select Use Wireless Networks and then select Agree.
  7. Select Use GPS Satellites.
  8. Select New User.
  9. Enter the required information and then select Start Lookout.

Upgrade to Lookout Premium


Try Lookout Premium for free! From the free Lookout app, you can initiate a free trial of the Premium version. To initiate the trial, select Try Premium for free. After initiating the Premium trial, you have a set number of days before you'll need to pay to keep it. If you choose not to keep it, your account will automatically revert back to the free Lookout version.

To upgrade to premium:

  1. Select Upgrade to Premium.
  2. Choose either the monthly or annual subscription.
  3. Enter your credit card information.
  4. Select Upgrade Now.

Cancel Lookout Premium


To cancel from your computer:

  1. Go to and sign in.
  2. On the left, select Account / Settings.
  3. Select Account Type, then Cancel Premium Subscription, and then follow the on-screen instructions.

To cancel from your mobile device:

  1. Open Lookout.
  2. Select Device, then Settings, then Account.
  3. Select Cancel Premium Subscription.
  4. Select Yes, Cancel My Premium Subscription and then follow the on-screen instructions.



Find my device

  1. Go to and sign in.
  2. Select Find My Device. Using GPS, Lookout immediately starts to locate your lost device.
  3. If successful, the location of your device will display on a map.



Use Scream to sound a loud alarm, even if your device has silent mode on. Your device will emit a loud siren, vibrate, and the screen will flash so you can find it nearby. Warning: The scream feature is LOUD!

To activate the Scream function:

  1. Go to and sign in.
  2. Select the Find My Device tab.
  3. Select Scream next to the speaker icon.
    IT WILL BE LOUD! Select Stop Screaming to turn the siren or scream off.

Signal flare


Signal Flare automatically saves your device's last known location when the battery gets low, significantly improving your chances of finding the device.

To activate Signal Flare:

  1. Open Lookout.
  2. Select Settings from the menu.
  3. Scroll down to the MISSING DEVICE section and select the box next to Signal Flare.
    Note: Log in to your account at to check all of your latest Signal Flare locations.

Scan your device


You can have Lookout scan for malicious downloads, including apps.

For automatic scans:

  1. Launch Lookout.
  2. Open the Settings menu.
  3. Check the box next to Monitor the file system.

Scheduled scans

  1. Launch Lookout.
  2. Open the Settings menu.
  3. Select Scheduled scans.
  4. Choose your preferred schedule. You can schedule the frequency of security scans, including a specific day of the week and time of day.

Manual scans

  1. Launch Lookout.
  2. Select Security.
  3. Select Scan Now.
  4. When the scan is complete, you'll find the number of apps scanned and your device's current security status.

Lock your device

  1. Go to and sign in.
  2. Select Find My Device, then Lock.
  3. Follow the on-screen instructions to lock your device and set up a custom lock message. Be sure to remember the unlock code, so you can unlock it later.

Wipe your device

  1. Go to and sign in.
  2. Select Find My Device.
  3. Select the Wipe icon.
  4. Select the Wipe button. Keep in mind, Wipe deletes all data on your device. And we have no way to undo this action (you can only restore data that you have backed up).

Report a lost or stolen device


If you can't find your device, you can report it as lost or stolen, suspend your line, and order a replacement device.

Theft Alerts (a Lookout Premium feature) sends you an email letting you know when one of these actions takes place:

  1. The SIM Card is removed.
  2. Airplane Mode is enabled.
  3. Your device is turned off.
  4. Device Admin is disabled.
  5. An incorrect passcode is entered three times.
    Note: In this instance, Lookout sends you an email with the location of your device, as well as whatever image it captured with the front-facing camera.

Change your Theft Alert email preferences:

  1. Open Lookout.
  2. Select Theft Alerts.
  3. Select Yes or No next to each alert.

Safe Browsing (a Lookout Premium feature)


Surf the web knowing that every site you visit is safe, including links from emails, texts, and Facebook. Safe Browsing is enabled by default, and it works on Google Chrome and the default Android browser.

To disable Safe Browsing:

  1. Go to Settings.
  2. Deselect Block dangerous URLs.

Privacy Advisor (a Lookout Premium feature)

  1. Open the Lookout app.
  2. Select Privacy Advisor.
  3. Select Scan Now. Lookout categorizes each of your apps based on the types of data they access.
  4. After the scan is complete, you can select a category to get a detailed list of apps that can access that category.
    1. For more in-depth information, select an app. If you’d like to uninstall an app, select App Info, then Options, then Uninstall.
    2. To be notified if an app changes its permissions, go to Settings, scroll down to the PRIVACY ADVISOR section, and select the box next to Notify of changes.


Try to re-create the issue

  1. Open Lookout.
  2. Try to perform the function that was not working and note any error messages.
  3. Check your steps with the How-tos.
  4. Try to perform a different function within Lookout and note the results.

Test your Internet access

  1. Open a browser and go to an external website.
  2. If no access, turn off your device or remove and then re-insert the battery.
  3. Restart your device and try to access the internet again.

If the issue is still not resolved, contact Lookout Customer Support or email your issue to You can also Contact Us for further troubleshooting.

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