Can you use the Messages app on a non-network phone?

[jtenos]

I'm using the Verizon Messages app on my HTC One M7, which is my primary cell phone. I also use the Windows desktop app, web app, and the Android app on my Galaxy Tab, and they all seem to work fine.

I use a Galaxy S3 phone as well, on Wi-Fi only (there's no SIM card, but it was previously my Verizon cell phone). I installed the Verizon Messages app and it runs, but I can't get it linked to my account. I go to the Settings screen and tap the Subscribe button, but it doesn't do anything, just takes me back to the main page.

Is it possible to use this app on a non-network phone? If so, any thoughts as to why the Subscribe button wouldn't work or even provide feedback? Or is there maybe another way to link my Verizon account?

[Snn5 · Accepted solution]

Any smartphone device must have active Verizon phone number attached to it.  (its own phone number that is)

[jtenos]

Thanks. Seems strange that you can use the Android app on a Wi-Fi tablet, but not on a Wi-Fi phone. Is there no workaround that you know of, aside from using the web app in a browser?

[Snn5]

None that I know of.