Introducing the UniFi mobile application. Use the UniFi app to:
- Access the UniFi Controller to manage entire networks of devices while on the go.
- Provision a UniFi Access Point (AP) for basic functionality without configuring a UniFi Controller.

Requirement:
The UniFi AP must be physically connected via an Ethernet cable to a network that provides IP addresses using DHCP.

How To:
1. Ensure that the UniFi AP is in its factory default state displaying a solidly white LED.
2. Log into your Ubiquiti community or SSO (Single Sign-On) account for backup/restore functionality. (If you wish you can skip this login.)
3. The UniFi AP should appear on the device list if your device Wi-Fi is enabled and both your device and UniFi AP are on the same layer-2 network. (This is similar to the device discovery feature for other Ubiquiti products.)
4. If your device Wi-Fi is not enabled (or your device is on another subnet) then select scan QR code from the menu. Note: This is available only for models with the QR code sticker.


https://community.ubnt.com/t5/UniFi-Mobile-App-Feature/idb-p/UniFi_Mobile_App_Requests