AVG driver updater

My trial is almost over and I got the message that I'll be charged $39.99 to continue - the email doesn't say if that is per month or per year or per 3 years???

Hi Susan,

We're glad to clarify this for you.
Upon checking our records, we see that you've received the pre-billing notification for Driver Updater & the trial will be renewed to an annual subscription (1 year). 
For further queries, feel free to write back to us.