Thank you for contacting us. When you talk about installing / activating mSecure 5, can you explain that in more detail? Downloading the app from the app stores installs it on your device, and there is no activation as far as licensing goes. When a license is purchased, it's applied to your account, so whatever devices are signed in to that same account, they will see the license.
First, which device(s) did you download mSecure 5 onto, and what happens now when you open the app on those devices? Also, did you purchase a license from our website?