Call Recorder - callX

Call Recorder - callX is an app that lets you record all incoming and outgoing calls on your Android. As its name suggests, it lets you do so automatically, without having to do anything but leave the app running in the background.

In the settings, you can change the quality of the audio recordings as well as the output format (MP4 or WAV). Of course, you can also choose the source of the sound you want to record and the folder where you want to save all the audio files.

An alternative (and very interesting) option is to leave it off and activate it by shaking the device during a call. This way, you'll have a quick and convenient way to record only certain calls.

Call Recorder - callX is a great app for recording phone conversations. Its main problem is that there are compatibility issues on some devices. For this reason, if it doesn't work, try changing the audio source, which by default is set to 'voice call.' This usually fixes the problem.