I thought I would put in a plug for Evo Things.
If you are looking at using a BLE platform (such as CC2650) and want to develop Android or IOS apps I recommend you consider including Evo Things in your tool set.
Below is a ZIP with one of the EvoThings Example Projects with LED control for anybody interested. (For the TI Sensor TAG CC2650STK)
CC2650 easyble accelerometer demo (in Workbench examples) with LED control (zip).
EvoThings Viewer Link (click from Android / IOS on device with Viewer Installed)
background and info links
2650 tag IO service for led and buzzer
I also modified one of the other sensor tag examples to show the magnetometer vector (this example has the gyro and accelerometer off to save some power)
EvoThings Viewer Link (click from Android / IOS on device with Viewer Installed)