I’m not sure how old it might be, but today I was on ufone website and found out the annual sms package (which wasn’t there last month atleast)
Now you can subscribe for yearly sms package and send unlimited sms to any mobile network number for just 666 pkr + tax.
To subscribe to ufone annual sms package, send “sub” to “601”
This seems to be a very logical and efficient package for usual sms texters as first of all you don’t have to care about not forgetting to renew your sms package every month and secondly because it really gets very cheap. 150+ sms in just 1 rupee.