Would you pay for premium version of the app?

We just launched the free version of my subscriptions management app (ScribePay). Customers can manually track their subscriptions to know how much they spend on average and upcoming due dates. The whole aim is aid financial management through improved visibility of finances. We are now working on a premium version where will provide a digital wallet and virtual card to pay for all subscriptions. key benefits 1- Automatically track subscriptions- giving full visibility and control 2-In real time, stop payments going through for those free trials you forget to cancel. So for example,if you use our virtual card for a free trial, before the merchant takes a payment we notify you to approve or decline. 3- Remove the inertia associated with subscriptions as you have the assurance with ScribePay you are always in control. For the premium version we seeking to charge a fee of £4.99/Month. would you pay?