Bluetooth IOS and MacOSX

Hello i am trying to connect the Bluetooth HC-05 to iPhone/iPad of iMac. Nothing works!
Tried a view app's like LightBlue, nBlueTerm, Handy BLE but no succes...
I have read about low bluetooth but no clue!?

HC-05 is a Bluetooth V2 device, not BLE. IOS will not talk to it. You need a BLE device, like HM-10. If iMac is OSX, I understand it will work OK.