Each plan has an upper limit on the number of subscribers you can send push notifications to.
For example, if you buy a VWO Engage Growth Plan of 10,000 subscribers worth $99, each month:
You can send unlimited notifications up to 10,000 subscribers.
You pay us a subscription fee of $99 until you plan to upgrade.
If more than 10,000 devices sign up for push notifications we will not charge you extra. However, any push notifications you send will be delivered only to the first 10,000 subscribers.
If you exceed your subscriber quota in the middle of your paying month, you’ll get the following error message on your summary page:
Note: After 14 days, some or all of your sub-accounts may be disabled should you choose not to upgrade.
Click on Upgrade now to choose from the next higher plan.
Click on Purchase Plan after selecting a plan that suits your needs, you’ll be taken to the payment gateway through which you can complete your purchase.