Cost of social internet pkg once on board

[Gma&Gpa]

I see the price of $8.50 per day on the site.  But is that the price  for booking prior  to boarding? If I wait until onboard,  will the price  be higher?

[carlacruz]

Here's the pricing from Carnival's travel agent's site

Carnival's Wi-Fi Service

Package	Pre-Cruise Purchase	Onboard Purchase	Onboard Single Day Purchase
Social	$8.50 per day	$10.00 per day	N/A
Value	$11.05 per day	$13.00 per day	$17.00 per 24 hours
Premium	$14.45 per day	$17.00 per day	$25.00 per 24 hours
Prices are based on cruise-long plans and are subject to change without prior notice.