In principle, it is very easy to work with the Recording mobile phone conversations. Newer smartphones can do this in a very good sound quality and the memory space is also sufficient even for long conversations. When selecting the app, it depends on whether a dictation, an interview or a telephone call is to be recorded. For an interview , the pre-installed apps"Voice Memos" (iOS) or"Dictaphone" (Android) are well suited. If a dictation is spoken clearly and distinctly, the built-in speech recognition also already works quite well, e.g. with Apple Siri with the preinstalled app "Notes". Telephone interviews cannot be recorded with these apps; for that you need other apps, some of which are available free of charge, for Remote interviews.