Unlimited SMS has been the norm for a little while now (5ish years maybe?), but it wasn't too long ago that the lower tier plans for every mobile carrier in the

Unlimited SMS has been the norm for a little while now (5ish years maybe?), but it wasn't too long ago that the lower tier plans for every mobile carrier in the US (not sure about elsewhere) had a per text charge, possibly after hitting a low monthly limit on free texts, or possibly with no free texts at all.