Apps like Zadarma

Here are some great alternatives to Zadarma by Zadarma Project :
Yeastar Linkus Mobile Client
Yeastar Linkus Mobile Client
★3.9
Vodia Phone
Vodia Phone
★3.7
Sipnetic
Sipnetic
★3.9
Botim - Video and Voice Call
Botim - Video and Voice Call
★4.4
voipoffice
voipoffice
★4.0
TeleConsole
TeleConsole
★4.1
MTT Business — IP phone
MTT Business — IP phone
★3.6
NimbusPhone
NimbusPhone
★3.5
VibePlus
VibePlus
★4.0
VirtualPBX Softphone
VirtualPBX Softphone
★3.8
Vibervoiz MoSIP
Vibervoiz MoSIP
★4.4
MobileVOIP international calls
MobileVOIP international calls
★4.5
TeleGo
TeleGo
★4.6
12Voip
12Voip
★4.4
Voiply Mobile: Calls & Text
Voiply Mobile: Calls & Text
★3.8
Call App:Unlimited Call & Text
Call App:Unlimited Call & Text
★4.3