This is a list of areas on the Optional Licenses page as seen from top to bottom. For more information about licensing see licensing help.
This allows you to purchase a Professional Edition subscription to enable cloud operations in DivisiBill. Once you purchased a subscription, this button is replaced by the "Modify" button which allows you to turn off automatic subscription renewal.
If you have already purchased the Professional Edition subscription, this button replaces the subscribe button and opens up a web site to permit you to view, modify or cancel your subscription.
This allows you to purchase a perpetual Professional Edition license to enable cloud operations in DivisiBill; it provides exactly the same features as a subscription but instead of an annual fee you make a one-time payment. Once you purchased a license, this button is replaced by the "Delete" button.
This allows you to delete your perpetual Professional Edition license - there is no obvious reason why you might want to do this but the capability exists.
This shows you your purchase order number if you have purchased OCR scans (there's a similar display for professional licenses or subscriptions).
All versions of DivisiBill allow you to purchase "scans" to extract information from a picture of a printed bill using cloud-based OCR scanning from the Image page. Each OCR operation consumes one scan; when the number of scans remaining reaches zero, you must buy more before another OCR operation will be allowed. (For more details see this page.) This area will show you how many scans you have remaining. If you only have a few remaining, it will enable the "Purchase Scans" button to order additional scans.
This button is only enabled when you have a small number of scans remaining, tap it to purchase additional scans.
This button allows you to return to the Settings page without changing anything.