[Blind-sysadmins] sip soft phone android apps and Asterisk PBX

Hello, Is anyone using an android phone with a Sip soft phone app to connect to an Asterisk PBX? I've got recommendations on two accessible soft phone apps, CSipSimple and Zoiper. This is on a Nougat system. Any pro con reports for either of these apps or any information on other apps appreciated. Thanks. Dave.