Apps like WalkieTalkie VOIP

Here are some great alternatives to WalkieTalkie VOIP by Justin Brady :
Secure Call
Secure Call
★3.4
Zoiper IAX SIP VOIP Softphone
Zoiper IAX SIP VOIP Softphone
★4.3
Acrobits: VoIP SIP Softphone
Acrobits: VoIP SIP Softphone
★3.5
Groundwire: VoIP SIP Softphone
Groundwire: VoIP SIP Softphone
★3.4
Walkietooth
Walkietooth
★4.1
Linphone
Linphone
★3.6
Voip By Antisip (+Video)
Voip By Antisip (+Video)
★3.7
Bria Mobile: VoIP Softphone
Bria Mobile: VoIP Softphone
★4.1
Call.Me
Call.Me
★3.5
jiPBX - SIP VOIP Softphone
jiPBX - SIP VOIP Softphone
★4.3
PrivateWave Professional
PrivateWave Professional
★3.3
Botim - Video and Voice Call
Botim - Video and Voice Call
★4.4
SessionCloud SIP Softphone
SessionCloud SIP Softphone
★3.6
Mumla — Mumble VoIP (Donation)
Mumla — Mumble VoIP (Donation)
★5.0
Sipnetic
Sipnetic
★3.9
Wispr
Wispr
★3.5