The Bluefruit LE Connect app provides iOS devices with a variety of tools to communicate with Bluefruit LE devices, such as the Circuit Playground Bluefruit! These tools cover basic communication and info reporting as well as more project specific uses such as remote button control and a NeoPixel color picker.

The iOS app is a free download from Apple's App Store

Connect 

Find the Circuit Playground Bluefruit to connect.

The name should start with CIRCUITPYXXX 

Controller and Modules 

Tap on the controller option and then either the color picker or control pad module.

Controller module 

In the controller module:

The UP arrow increases the brightness of the LEDs

The DOWN arrow decreases the brightness of the LEDs

Buttons 1 is the Rainbow Animation

Button 2 is the Audio Reaction mode

Button 3 is a Purple Color

Button 4 is the Light Meter mode

Color Picker

Select a color and tap on send to set the lamp color.

Watch app

The IOS version also incudes a companion watch app.

Once connected a Circuit Playground Bluefruit device using a iPhone or iPad, launch the watch Bluefruit app.

Select the controller option on the iPhone or iPad and then the watch will show the color picker and control pad modules.

Control pad

In the control pad module, swipe left or right to access the arrows or the 1-4 buttons.

Color Picker

The color picker has a nice palette of colors to select from or use the RGB method to really dial in a color!