A few of the above, but I've also tried Adafruit Bluefruit Buddy on Mac which does UART and has a minimalist console which worked without any config tweaks out the box (though you wouldn't want to key much to it).
And also eBeacon on iPhone for detecting beacons advertising via Eddystone.
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
A few of the above, but I've also tried Adafruit Bluefruit Buddy on Mac which does UART and has a minimalist console which worked without any config tweaks out the box (though you wouldn't want to key much to it).
And also eBeacon on iPhone for detecting beacons advertising via Eddystone.
Both available from respective app stores.