Protelion VPN5.0.6 - App Store

Protelion VPN is a client application that allows iOS devices to securely connect to a Virtual Private Network (VPN) built using the Protelion VPN technology. Protelion VPN operates on a proprietary data protocol that can be used over any TCP/IP network, utilizing UDP or TCP. Notably, Protelion VPN employs a session-less approach and provides symmetric encryption to safeguard every VPN data packet payload.

To establish a connection to the actual VPN, it is necessary to install encryption keys. Kindly contact your Protelion VPN administrator to obtain the encryption keys file.

Version History Optimized performance, improved UI and bug fixes 5.0.6 02/06/2025 Optimized performance, improved UI and bug fixes 5.0.5 01/30/2025 Optimized performance, improved UI and bug fixes 5.0.4 01/28/2025 Support for encryption keys’ files version 5
Universal License support
Optimized performance, improved UI and bug fixes
Access the license agreement in "About" section 5.0.3 01/27/2025 - More links:
Earlier, your host could have no more than 2,500 links; now, 10,000.


- Connection server auto-selection:
Now you can turn on the connection server auto-selection from the servers of your Protelion network, and thus ensure continuity of your tasks. If your connection server goes offline, Protelion VPN switches to another one.


- Keeping the connection server selection:
Now you can control the connection server selection mode without entering the debug mode. Turn on the Keep Server option for the coordinator you had selected manually in Protelion VPN to remain your connection server whenever new keys and host links arrive from the management Protelion software. If the option is off, the coordinator imposed by the management Protelion software overrides your current connection server as new keys and host links arrive. 4.4.0 06/13/2024 * Bugfix 4.1.1 08/10/2023 * Bugfix 2.23.1 08/22/2022 - Blocking the unencrypted traffic when VPN is on 2.23.0 03/01/2022 • Bugfix 2.22.4 11/09/2021 • Bugfix 2.22.1 06/30/2021 • Checking connection to other ViPNet hosts
• Changing the active coordinator of your ViPNet network
• Viewing the virtual IP addresses of tunneled hosts
• Notification about gaining root permissions 2.22.0 04/05/2021 · Bugfix 2.21.3 01/29/2021 · VPN auto-disable
· Accepting new keys despite the expired ViPNet license
· Bugfix 2.21.0 10/15/2020 · Screen lock feature; unlock using PIN and biometrics
· Enabling virtual IP addresses for tunneled hosts
· Bugfix 2.20.0 06/19/2020 · In- and outbound traffic graph has been added to the app’s main page
· Maximum number of links with ViPNet hosts has been increased from 500 to 2,500
· Errors found in previous versions have been fixed 2.19.0 04/26/2020 - Now you can access ViPNet hosts by their unique names.
- When configuring your app, you can specify any number of DNS servers and up to 125 protected DNS zones.
- Bugs found in previous versions have been fixed. 2.18.0 09/20/2019 • The app notifies you in case of time difference between your host and a coordinator.
• The app accepts settings for the application protocol processing received from the ViPNet Policy Manager software.
• The app can now establish TCP connections.
• The app takes less time to enable VPN.
• Some improvements have been implemented for the app to consume less energy (and we keep on working on it)
• Bugs found in the previous app versions have been fixed. 2.17.0 04/30/2019 Push notification enables VPN connection 2.16.2 02/06/2019 - Bugfixes 2.16.1 01/29/2019 - Bugfixes 2.16.0 11/01/2018 - Downloading the key set from the ViPNet Rollout Center server 2.0;
- Checking connection to a coordinator;
- Changes in selecting the key set on the device;
- New ViPNet host information page;
- Viewing the password you type;
- Changes in the user interface design;
- Displaying the messages about coordinator configuration;
- Bugfixes 2.15.0 08/29/2018 - Now the app processes the application protocols (FTP, DNS, H.323, SCCP, SIP), thus allowing the apps, which use these protocols, to function on the ViPNet network.
- Bugs found in the previous program version have been fixed. 2.14.0 06/06/2018 The new app version has the following improvements:
- Connection to a coordinator restores automatically as soon as coordinator’s IP address changes (DynDNS)
- The app displays ViPNet hosts your host is linked with
- You can specify an email app when sending error messages to Infotecs support if the default email app is unavailable 2.10.0 02/06/2018 The new app version has the following improvements:
• In previous versions, you could not deploy a DST file upon installing the app for the first time if the app was forcely connected to ViPNet network. In this version, this bug has been fixed.
• Processing of keys during DST file deployment has been improved. Now, if the master keys change, you need to install the DST file with new keys only once (unless you have the minimum permission level). After that, key updates caused by master key change will be accepted automatically over the ViPNet network 2.9.1 11/23/2017 - Checking the integrity of the ViPNet Client for iOS app and its environment
- Running the integrity and performance control manually
- Controlling the license and the ViPNet Client for iOS app expiration
- Bugs found in previous program versions have been fixed. 2.9.0 10/31/2017