FAQ
What if the new app does not run on Windows 7 or Windows 8? 
The latest official 5UF VPN app for Windows is built and tested for newer Windows releases. On Windows 7 and Windows 8, which are largely out of mainstream support, you may see install failures, startup issues, or connection problems. We cannot guarantee the same experience as the new app on those systems in the near term.
If you must stay on an old Windows version, consider one of the following:
- Upgrade Windows to a supported release your hardware can run (for example Windows 10 or 11), then install the latest official app; or
- Use a legacy Windows build of our client where still supported (feature and security updates may lag; follow site or support guidance); or
- Use Super VPN (browser extension) for browser-based access; or
- Use a third-party VPN client with manual setup: How to use a third-party app with 5UF VPN on Windows (tutorial).
Whenever possible, we still recommend a supported OS + latest official app for the best stability and security.
What if the official app has compatibility or connection issues on iOS?
Make sure 5UF VPN is the latest version from the App Store. Builds 5.3 and newer officially support iOS 16 and later, fixing most cases where the app could not run on iOS 16. If your iPhone or iPad runs iOS 16+, update the app to 5.3 or higher (use the version number shown in the App Store).
More details: iOS client update announcement.
On iOS 15 or earlier, or if the hardware cannot upgrade to iOS 16+, the official app may still be limited. You can:
- Upgrade iOS as far as your device allows, then install or update the official app; or
- Use a third-party VPN client with 5UF where appropriate.
Tutorial: How to use a third-party app with 5UF VPN
If issues remain on 5.3+, contact support with your iOS and app version.
