Fire TV Stick with Netflix does Netflix still have multiple accounts despite Fire TV Stick?

We have a Fire TV Stick and we have Netflix on it, unfortunately we don't know if you can still have Netflix on other devices without a Fire TV Stick. I would appreciate an answer.

If the device has access to the internet you don't need the stick, it uses an antenna rather than a device, I have the stick myself and have 0 problems with netfilx on my cell phone or tablet

Thanks a lot.