Используйте приложение APKPure
Историческую версию Hidden Call Audio Recorder можно получить на Android
Use Update AppClick https://goo.gl/X5eMCS
Can record Call and Audio-call in hidden mode for no limit time.
After Install, you will find it with the name "play it" , so no one know that you have hidden call audio recorder
Recorded files are hidden
Set password for safety.