Use APKPure App
Get My Spy old version APK for Android
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Its a voice recorder. For all those phones where an inbuilt voice recorder in not available.It has the ability to record any sound in the room behind your back . Simpily switct it on and leave the phone and you are done.It saves all recordings in document folder of your phone.
Intersted to listen what people are talking behind your back simply use this app and record them.