Use APKPure App
Get KeyStore Explorer old version APK for Android
Convert Apk/keyStore to pem , read CACERT ,read certificate, password changer
Keystore Explorer is an Android App tool that brings the Commandline Keytool functionalities to Android . By this app you can create keystores of multiple types, convert Apk to Pem, read certificates and lots more.
-Create keystore
-Read Keystore certificates info
-Apk to pem file, Keystord to pem file.