LPPE = LTE Positioning Protocol enhancements/extensions (LTE = "4G") Positioning and assistance protocol between E-SMLC (mobile location center) and UE (User Equipement = phone) https://www.gpsworld.com/wirelessexpert-advice-positioning-protocol-next-gen-cell-phones-11125/ I don't know the app has the permission to read SMS
Phones target this application