A free program for Android, by Travis Mobile.

With the OnePlus Call Recorder app, you can record any calls that you want to keep, whether it’s from your smartphone or another device. Once you’re done recording, you can save the audio files and replay them at any time.

If you’re looking to record calls, this app will be perfect for you. It is extremely simple to use and has a user-friendly interface. All you have to do is open the app and follow the prompts to record your calls. The audio files will then be saved on your device. You can play them back and delete them from your device if you want.

This app is designed to work with the OnePlus smartphone. If you don’t have a OnePlus smartphone, you can still use the app on other devices.