This app uses AdMob and Google Analytics service to show you ads and optimize the app. Other than that, no user info is stored or sent through internet. Audio recorder only use your microphone record sound to your local device, no data is transfered to internet. App Builder use your microphone to record sound to local device, not data is transfered to internet. App which read your conatcts only show or manage your contacts on your local device by your request, no data is transfered to internet. Dialer app use phone state to dial number by your request.