Apps like ZoiperBeta

Here are some great alternatives to ZoiperBeta by Securax EOOD :
MizuDroid SIP VOIP Softphone
MizuDroid SIP VOIP Softphone
★4.1
Acrobits: VoIP SIP Softphone
Acrobits: VoIP SIP Softphone
★3.8
Groundwire: VoIP SIP Softphone
Groundwire: VoIP SIP Softphone
★3.4
Sipnetic
Sipnetic
★4.0
REDCOM Sigma Client
REDCOM Sigma Client
★4.4
Bria Mobile: VoIP Softphone
Bria Mobile: VoIP Softphone
★4.1
Voip By Antisip (+Video)
Voip By Antisip (+Video)
★3.7
jiPBX - SIP VOIP Softphone
jiPBX - SIP VOIP Softphone
★4.0
TeleGo
TeleGo
★4.6
AGEphone
AGEphone
★5.0
MoSIP Mobile Dialer
MoSIP Mobile Dialer
★3.9
Mabrook Plazma
Mabrook Plazma
★3.5
Yeastar Linkus Mobile Client
Yeastar Linkus Mobile Client
★3.9
MobileVOIP international calls
MobileVOIP international calls
★4.4
Vodia Phone
Vodia Phone
★3.7
Wildix Collaboration Mobile
Wildix Collaboration Mobile
★4.3