This app use internet connection for fetching data from internet. The internet access permission is required for couple of reason. The app may Contains Ads and In App Purchase. For showing ad and fetching in app purchase information access to internet is necessary. The app also use couple of Firebase Services like Firebase Crashlytics (For logging crash info). These services also required internet connection access.

The app allows user to trim, join, convert audio and convert video to audio. To choose audio/video from gallery the app requires permission of accessing device's photos and gallery Thus the app takes permission to read audio and video data from user's phone gallery.

This app takes the permission of writing the storage of your phone. For saving individual audio after trim, join or convert the app stores the converted files into app's private directory. The files are stored inside On My iPhone > Files > Audio Trimmer & Joiner > Saved_Files To save the files into this folder the app needs storage write permission.

The app may also store some temporary data while processing media files. All these files are stored inside cache directory and keep clearing to free unnecessary disk usage.