1SIM VoIP Reviews
2/5 rating based on 11 reviews. Read all reviews for 1SIM VoIP for iPhone.
1SIM VoIP is free iOS app published by Belmont Telecom, Inc.
Horrible Service
Gvoice Fan
Only works while connected to WiFi. Does NOT work on LTE. I disabled LTE to see if will work on 3G as advertised but failed to work. You will not receive calls on PEN number if not connected to WiFi. Long distance voice quality worse as compared to any other VOIP service. Wasted money... Would give ZERO stars if possible.
Crashes
Leib1
It's kind of interesting that some people are complaining that it only works with Wifi, hey that's the idea (I think), but I couldn't even open the App crashes right away.
Crashes
Zjohnp
On my iPhone 4S crashes as soon as you start it. Deleted and reloaded and crashed again. Foes not work.
Great app
Oldham5
This is a great app. I used it in many countries on wi- fi and 3G for incoming and outgoing calls. Allows to use the same onesimcard phone number both - VoIP or when no data available - through roaming. This is very unique.
Great app for making Wi-Fi calls while overseas
1ill8
As a OneSimCard user, this app lets me call back to the US for just 2c/min from any country when I have a Wi-Fi connection. And I don't even need to have my OneSimCard international SIM card installed to do it! Calling to other countries is also cheap and usually less than Skype.
Keeps crashing
James P Conley
After this last eat iPhone update this great program keeps crashing. It will not open
Does Not Work
billedge
Installed on iPhone 5 with current iOS version and the app will not even start.