Surge allows you to monitor the Uber surge at your current location or a fixed location.
Surge also supports a Today Widget, showing you the surge value at your current location.
You will be able to receive notifications when a surge starts, increases/decreases, and ends.
You can specify the Surge minimum to be notified and what type of notifications to receive.
Surge supports fine grained notification settings.
An Uber account is required in order to authenticate with the Uber API.
You don't 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.