There is no limit to the number of trackers you can have associated to a single account.
To find out how you can track multiple devices with a single user account follow these simple steps:
1. Open the Lightbug App or go to the Web Portal
2. Go to 'Settings', then to the 'Data Plan' page
3. Click 'Add a new device'
4. In the pop up box enter the serial number of the device and click 'Add'
Hint: The serial number can be found on the back of the device.
4. Check that the tracker appears in your list of devices. 
The device has now been added to your account. Repeat these steps to add additional trackers to your account.
Other helpful articles:
Want to monitor a single LightBug tracker from multiple devices. Find out how in this article.
Interested in the features of the LightBug Cloud? Discover it's features in our User Manual.