Surge allows you to monitor the Uber surge at your current location or a fixed location.
You will be able to receive notifications when a surge starts, increases/decreases, and ends. Surge supports fine grained notification settings. You can specify the Surge minimum to be notified and what type of notifications to receive.
Surge also supports a Today Widget, showing you the surge value at your current location.
An Uber account is required in order to authenticate with the Uber API. You dont need to use a driver account, you can use a rider account.
Continued use of GPS running in the background can dramatically decrease battery life.