What did I miss?

Unless I either missed something or something has changed, the only useful feature is how long until I cruise.

Once your on board the free app requires you to pay for on board wifi to actually check in on board.

So if all youre looking to do is know how many days hours minutes and seconds you have before your cruise this is a fun app, but the minute your on board and click the "Im on board" button now you must pay.

Imgn2fly about Carnival HUB