2025-06-04 00:00:00 MizuDroid is a free, unlocked, professional SIP softphone to be used with any SIP server / any VoIP provider. No ads. The app doesn't include any VoIP service. You are free to configure it to be used with any SIP server or service provider. Note1: You will need to have a SIP account to be able to use this softphone and calls to mobile/landline phones might cost you money. See your VoIP service provider for the exact terms and pricing.