The Cloud OCR SDK pricing model is so that the more you recognize in the time period, the less you pay for the page. You purchase the pages, not the product itself. There are two ways of pricing in Cloud OCR SDK:

• Package pricing. You can buy a package of pages (100, 1000, 5000, 30 000 or more than 100 000) and it will be valid for 90 days from the date of purchase. Any additional purchases during that period will extend validity period for 90 days from the date of the latest purchase.
• Subscription pricing. You can subscribe to a suitable amount of pages (500, 2000, 5000, 10 000, 30 000, 100 000 or more) and your application will be set to automatic recurring monthly payments. Starting from the date of the first purchase, you will be charged every month unless you choose to cancel. Please note that in this case unused pages at the end of any month will not be carried over to the next month. You can upgrade/downgrade/cancel your subscription plan in any time via the User Console, if you understand that the current plan is not reasonable for your usage scenario.

Please find more information at the Plans and pricing and Billing terms web pages.