Hi Laurent,

Thank you for contacting us. 

You can download mSecure 5 here:

iOS: https://itunes.apple.com/us/app/msecure-password-manager-and-secure-wallet/id1063795594
Android: https://play.google.com/store/apps/details?id=com.mseven.barolo
Mac: https://itunes.apple.com/us/app/msecure-password-manager-and-secure-wallet/id1157750250
Windows: https://www.microsoft.com/en-us/store/p/msecure-5/9nblggh62pc8

Alternatively, you can download mSecure 5 from each platforms app store. mSecure 5 for Windows requires Windows 10 and access to the Microsoft Store app in order to download it. mSecure 5's minimum system requirements are iOS 10.3+; Watch OS 4.3+; Android 4.3+; Mac 10.11+; Windows 10 (UWP).