AppNana daily return is tricky!

There are restrictions to the daily Nana's; one need to earn enough points from offers and/or invitation codes to keep qualifying for the Daily Nanas.

AppNana claims a daily return to give you a daily bonus of 400 Nanas. However in an earlier post I found out that after 6 times the daily bonus won't work as such any longer; one need to have at least 4000 Nanas by the Nana offers or invite 3 friends.
Further more, the word 'daily' might not be exactly accurate here. The 'daily' reward is granted after 24 hours after the previous daily payout. So for example checking your AppNana app tonight at 11pm and tomorrow at 6am won't count as 2 daily visits! So it is rather a 24 hour countdown after the last reward rather than a daily visit. If you wait longer than 24 hours to log in, the new 24 hour countdown will start from that time on, not from your previous time expiration. To me it makes sense, but it's a little unexpected catch!