Record phone calls – a Simple but very effective app that will record desired calls. Just configure it as you need and record all the conversations that take place on your smartphone. It is worth noting that you can set the recording for particular contacts, and a stranger who says your device will not even notice that the conversation is being recorded. After recording a few calls, you will be able to sort them into groups, or Yes there. As well as leave notes, and share them with friends. The number of calls that you can record is limited only by your device memory.