Kakao T Picker is a free Android app developed by Kakao Mobility Corp. that offers an integrated platform for drivers looking to partner with the many services offered by Kakao T. The app is designed to be user-friendly, with a simple interface that allows drivers to easily enter their information and select the service they want to work in.

Once you've downloaded and installed Kakao T Picker, the app will ask for certain permissions, including location and notification. These are required in order to receive orders and calculate fares, as well as to receive notifications on order card assignments. While optional, the app may also request access to your camera and album, which are needed to upload your profile photo and certificates, as well as photos taken while providing the service.

It's worth noting that even if you don't agree to the optional permissions, the service is still available. However, the location permission must always be enabled in order for drivers to receive calls while clocking in or viewing other apps. Additionally, the services that drivers can support may differ depending on the location.