Change Voice While Calling ! APK
https://apkpure.com/change-voice-while-calling/com.smartapps.voicechanger

Call Voice Changer + male to female
https://mobilepp.com/app_EdgIC5O2BYUi

Voic Changer
https://play.google.com/store/apps/details?id=com.baviux.voicechanger&hl=en