There are three subscription options for the Drivers Utility Helper app.
1. Ad-free which will remove all ads inside the app for $2.99 per month
2. Monthly gives you all the premium options available as well as ad-free for $9.99 per month
3. Yearly is the same as the monthly except discounted with 2 free months for $99.99 per year.
Premium subscriptions are billed on a 31 day basis, not the actual month they are purchased. Users may cancel a subscription at anytime, but all subscriptions are final until the end of their billing period. Premium subscriptions with auto renewal enabled may be billed one day prior to their subscription ending to avoid disruption of service.