Where are you getting this error? From Play Store, or the S3 when you run the app, or the S3 when you enable the hotspot, or from another device attempting to use the hotspot?
I'm using SVTP Lite at the moment and it works just fine during the 5 minute test period*. Pro is supposedly identical but without such limits. Maybe try uninstalling Pro and seeing if Lite works? If so, then I'd suggest emailing SVTP.
* (I'm waiting to upgrade until I really need it because of my Very limited budget)
Originally Posted by mightykc
I tried this and it says my device is not supported.