1SIM VoIP3.1.3 - App Store
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Publisher Description
OneSim VoIP provides OneSimCard customers with an even less expensive way to make and receive international calls on their iPhone mobile phones or iPads. To use OneSim VoIP, users must have a good quality Wi-Fi, 3G, 4G or LTE Internet connection and a VoIP-enabled Personal Extra Number (PEN) activated with OneSimCard. When making an outgoing call, OneSimCard users can select the way the call will be made - either through the OneSimCard international SIM card or OneSimCard VoIP network. Calls made over the VoIP network are generally much less expensive than OneSimCard’s standard international roaming rates. Incoming calls made to the PEN will be received through low-cost VoIP if the OneSimCard phone and OneSim VoIP app are registered on the Internet. Otherwise, the call will be sent the usual way to the phone through the international SIM card.
The newer version 2 of the app adds the texting feature and allows the sending and receiving texts (SMS) to and from US and Canada mobile phones over Wi-Fi or mobile data at much lower rates than regular SMS sent and received over the roaming network.
The app does not require having a OneSimCard SIM installed in the phone, but it does require having a OneSimCard account and a VOIP and SMS enabled PEN.
Initial settings for the app are available in the “My SIM Cards” menu of the OneSimCard online account. When in the My SIM Cards menu, select the SIM (if there are more than one on your account) and then click on the Create VoIP Account link. This will create a OneSimCard VoIP account and provide you with a link with Settings information for your iPhone or iPad.
Important: Connection quality of the calls made using OneSim VoIP option over the Internet will only be as good as the quality of the Internet connection. Please be advised that in many cases this kind of connection quality is inferior to the connection quality made through the OneSimCard international SIM card roaming network.
Version History - minor improvements 3.1.3 Sep 29 - minor improvements 3.1.2 May 14 - minor improvements 3.1.1 May 13 - minor improvements 3.0.9 07/17/2024 - improved functionality 3.0.8 07/01/2024 - minor bugfix
- improvements 3.0.7 06/22/2024 - minor improvements 3.0.5 10/23/2023 - minor improvements 3.0.4 09/25/2023 - bug fixes and minor improvements 3.0.3 07/23/2023 - minor improvements 3.0.2 07/19/2023 - minor improvements and bug fixes 3.0.1 06/21/2023 - fully re-worked application 3.0.0 06/14/2023 -bug fixes 2.83 08/30/2016 -Bug fixes 2.82 04/28/2016 Bug fixes 2.81 03/15/2016 -Bug fixes 2.8 03/07/2016 -Minor UI improvments
-Sign Out option added 2.7 02/17/2016 -Bug fixes 2.6 12/10/2015 -UI improvements 2.5 11/18/2015 -Bug fixes 2.4 11/11/2015 -first start bug fixed 2.3 11/04/2015 The newer version 2 of the app adds the texting feature and allows the sending and receiving texts (SMS) to and from US and Canada mobile phones over Wi-Fi or mobile data at much lower rates than regular SMS sent and received over the roaming network. 2.2 10/23/2015 -UI improvements 2.1 06/25/2015 -UI improvements 2.0 05/29/2015 -Bug fixes
-Minor UI changes 1.1 01/22/2015
About 1SIM VoIP
The company that develops 1SIM VoIP is Belmont Telecom, Inc.. The latest version released by its developer is 3.1.3.
To install 1SIM VoIP on your iOS device, just click the green Continue To App button above to start the installation process. The app is listed on our website since 2026-10-14 and was downloaded 0 times. We have already checked if the download link is safe, however for your own protection we recommend that you scan the downloaded app with your antivirus. Your antivirus may detect the 1SIM VoIP as malware if the download link is broken.
How to install 1SIM VoIP on your iOS device:
- Click on the Continue To App button on our website. This will redirect you to the App Store.
- Once the 1SIM VoIP is shown in the iTunes listing of your iOS device, you can start its download and installation. Tap on the GET button to the right of the app to start downloading it.
- If you are not logged-in the iOS appstore app, you'll be prompted for your your Apple ID and/or password.
- After 1SIM VoIP is downloaded, you'll see an INSTALL button to the right. Tap on it to start the actual installation of the iOS app.
- Once installation is finished you can tap on the OPEN button to start it. Its icon will also be added to your device home screen.
Program Details
System requirements
Download information
Pricing
Version History
version 3.1.3
posted on 2026-10-14
Version History - minor improvements 3.1.3 Sep 29 - minor improvements 3.1.2 May 14 - minor improvements 3.1.1 May 13 - minor improvements 3.0.9 07/17/2024 - improved functionality 3.0.8 07/01/2024 - minor bugfix
- improvements 3.0.7 06/22/2024 - minor improvements 3.0.5 10/23/2023 - minor improvements 3.0.4 09/25/2023 - bug fixes and minor improvements 3.0.3 07/23/2023 - minor improvements 3.0.2 07/19/2023 - minor improvements and bug fixes 3.0.1 06/21/2023 - fully re-worked application 3.0.0 06/14/2023 -bug fixes 2.83 08/30/2016 -Bug fixes 2.82 04/28/2016 Bug fixes 2.81 03/15/2016 -Bug fixes 2.8 03/07/2016 -Minor UI improvments
-Sign Out option added 2.7 02/17/2016 -Bug fixes 2.6 12/10/2015 -UI improvements 2.5 11/18/2015 -Bug fixes 2.4 11/11/2015 -first start bug fixed 2.3 11/04/2015 The newer version 2 of the app adds the texting feature and allows the sending and receiving texts (SMS) to and from US and Canada mobile phones over Wi-Fi or mobile data at much lower rates than regular SMS sent and received over the roaming network. 2.2 10/23/2015 -UI improvements 2.1 06/25/2015 -UI improvements 2.0 05/29/2015 -Bug fixes
-Minor UI changes 1.1 01/22/2015
version 3.1.3
posted on 2026-10-04
Version History - minor improvements 3.1.3 5d ago - minor improvements 3.1.2 May 14 - minor improvements 3.1.1 May 13 - minor improvements 3.0.9 07/17/2024 - improved functionality 3.0.8 07/01/2024 - minor bugfix
- improvements 3.0.7 06/22/2024 - minor improvements 3.0.5 10/23/2023 - minor improvements 3.0.4 09/25/2023 - bug fixes and minor improvements 3.0.3 07/23/2023 - minor improvements 3.0.2 07/19/2023 - minor improvements and bug fixes 3.0.1 06/21/2023 - fully re-worked application 3.0.0 06/14/2023 -bug fixes 2.83 08/30/2016 -Bug fixes 2.82 04/28/2016 Bug fixes 2.81 03/15/2016 -Bug fixes 2.8 03/07/2016 -Minor UI improvments
-Sign Out option added 2.7 02/17/2016 -Bug fixes 2.6 12/10/2015 -UI improvements 2.5 11/18/2015 -Bug fixes 2.4 11/11/2015 -first start bug fixed 2.3 11/04/2015 The newer version 2 of the app adds the texting feature and allows the sending and receiving texts (SMS) to and from US and Canada mobile phones over Wi-Fi or mobile data at much lower rates than regular SMS sent and received over the roaming network. 2.2 10/23/2015 -UI improvements 2.1 06/25/2015 -UI improvements 2.0 05/29/2015 -Bug fixes
-Minor UI changes 1.1 01/22/2015
version 3.1.2
posted on 2026-09-27
Version History - minor improvements 3.1.2 May 14 - minor improvements 3.1.1 May 13 - minor improvements 3.0.9 07/17/2024 - improved functionality 3.0.8 07/01/2024 - minor bugfix
- improvements 3.0.7 06/22/2024 - minor improvements 3.0.5 10/23/2023 - minor improvements 3.0.4 09/25/2023 - bug fixes and minor improvements 3.0.3 07/23/2023 - minor improvements 3.0.2 07/19/2023 - minor improvements and bug fixes 3.0.1 06/21/2023 - fully re-worked application 3.0.0 06/14/2023 -bug fixes 2.83 08/30/2016 -Bug fixes 2.82 04/28/2016 Bug fixes 2.81 03/15/2016 -Bug fixes 2.8 03/07/2016 -Minor UI improvments
-Sign Out option added 2.7 02/17/2016 -Bug fixes 2.6 12/10/2015 -UI improvements 2.5 11/18/2015 -Bug fixes 2.4 11/11/2015 -first start bug fixed 2.3 11/04/2015 The newer version 2 of the app adds the texting feature and allows the sending and receiving texts (SMS) to and from US and Canada mobile phones over Wi-Fi or mobile data at much lower rates than regular SMS sent and received over the roaming network. 2.2 10/23/2015 -UI improvements 2.1 06/25/2015 -UI improvements 2.0 05/29/2015 -Bug fixes
-Minor UI changes 1.1 01/22/2015 Bug fixed on crash report, when access to the Contact is not granted in Privacy settings 1.0.3 08/16/2013
version 3.1.2
posted on 2026-09-06
Version History - minor improvements 3.1.2 May 14 - minor improvements 3.1.1 May 13 - minor improvements 3.0.9 07/17/2024 - improved functionality 3.0.8 07/01/2024 - minor bugfix
- improvements 3.0.7 06/22/2024 - minor improvements 3.0.5 10/23/2023 - minor improvements 3.0.4 09/25/2023 - bug fixes and minor improvements 3.0.3 07/23/2023 - minor improvements 3.0.2 07/19/2023 - minor improvements and bug fixes 3.0.1 06/21/2023 - fully re-worked application 3.0.0 06/14/2023 This app has been updated by Apple to prepare for watchOS 27 compatibility. No new features are included.
-bug fixes 2.83 08/30/2016 -Bug fixes 2.82 04/28/2016 Bug fixes 2.81 03/15/2016 -Bug fixes 2.8 03/07/2016 -Minor UI improvments
-Sign Out option added 2.7 02/17/2016 -Bug fixes 2.6 12/10/2015 -UI improvements 2.5 11/18/2015 -Bug fixes 2.4 11/11/2015 -first start bug fixed 2.3 11/04/2015 The newer version 2 of the app adds the texting feature and allows the sending and receiving texts (SMS) to and from US and Canada mobile phones over Wi-Fi or mobile data at much lower rates than regular SMS sent and received over the roaming network. 2.2 10/23/2015 -UI improvements 2.1 06/25/2015 -UI improvements 2.0 05/29/2015 -Bug fixes
-Minor UI changes 1.1 01/22/2015 Bug fixed on crash report, when access to the Contact is not granted in Privacy settings 1.0.3 08/16/2013
version 3.1.2
posted on 2026-08-12
Version History - minor improvements 3.1.2 May 14 - minor improvements 3.1.1 May 13 - minor improvements 3.0.9 07/17/2024 - improved functionality 3.0.8 07/01/2024 - minor bugfix
- improvements 3.0.7 06/22/2024 - minor improvements 3.0.5 10/23/2023 - minor improvements 3.0.4 09/25/2023 - bug fixes and minor improvements 3.0.3 07/23/2023 - minor improvements 3.0.2 07/19/2023 - minor improvements and bug fixes 3.0.1 06/21/2023 - fully re-worked application 3.0.0 06/14/2023 This update from Apple will improve the functionality of this app. No new features are included.
-bug fixes 2.83 08/30/2016 -Bug fixes 2.82 04/28/2016 Bug fixes 2.81 03/15/2016 -Bug fixes 2.8 03/07/2016 -Minor UI improvments
-Sign Out option added 2.7 02/17/2016 -Bug fixes 2.6 12/10/2015 -UI improvements 2.5 11/18/2015 -Bug fixes 2.4 11/11/2015 -first start bug fixed 2.3 11/04/2015 The newer version 2 of the app adds the texting feature and allows the sending and receiving texts (SMS) to and from US and Canada mobile phones over Wi-Fi or mobile data at much lower rates than regular SMS sent and received over the roaming network. 2.2 10/23/2015 -UI improvements 2.1 06/25/2015 -UI improvements 2.0 05/29/2015 -Bug fixes
-Minor UI changes 1.1 01/22/2015 Bug fixed on crash report, when access to the Contact is not granted in Privacy settings 1.0.3 08/16/2013
version 3.1.2
posted on 2026-05-17
Version History - minor improvements 3.1.2 3d ago - minor improvements 3.1.1 4d ago - minor improvements 3.0.9 07/17/2024 - improved functionality 3.0.8 07/01/2024 - minor bugfix
- improvements 3.0.7 06/22/2024 - minor improvements 3.0.5 10/23/2023 - minor improvements 3.0.4 09/25/2023 - bug fixes and minor improvements 3.0.3 07/23/2023 - minor improvements 3.0.2 07/19/2023 - minor improvements and bug fixes 3.0.1 06/21/2023 - fully re-worked application 3.0.0 06/14/2023 This update from Apple will improve the functionality of this app. No new features are included.
-bug fixes 2.83 08/30/2016 -Bug fixes 2.82 04/28/2016 Bug fixes 2.81 03/15/2016 -Bug fixes 2.8 03/07/2016 -Minor UI improvments
-Sign Out option added 2.7 02/17/2016 -Bug fixes 2.6 12/10/2015 -UI improvements 2.5 11/18/2015 -Bug fixes 2.4 11/11/2015 -first start bug fixed 2.3 11/04/2015 The newer version 2 of the app adds the texting feature and allows the sending and receiving texts (SMS) to and from US and Canada mobile phones over Wi-Fi or mobile data at much lower rates than regular SMS sent and received over the roaming network. 2.2 10/23/2015 -UI improvements 2.1 06/25/2015 -UI improvements 2.0 05/29/2015 -Bug fixes
-Minor UI changes 1.1 01/22/2015 Bug fixed on crash report, when access to the Contact is not granted in Privacy settings 1.0.3 08/16/2013
version 3.0.9
posted on 2024-07-17
- minor improvements
version 3.0.9
posted on 2024-07-17
Jul 17, 2024
Version 3.0.9
- minor improvements
version 3.0.8
posted on 2024-07-01
Jul 1, 2024
Version 3.0.8
- improved functionality
version 3.0.7
posted on 2024-06-22
Jun 22, 2024
Version 3.0.7
- minor bugfix
- improvements
Disclaimer
Official App Store Link
We do not host 1SIM VoIP on our servers. We did not scan it for viruses, adware, spyware or other type of malware. This app is hosted by Apple and passed their terms and conditions to be listed there. We recommend caution when installing it.
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