Purchasing a rank will result in higher ranks to have a discount with the differences between the higher value rank and your current rank, so you will never overpay.

Bee ➞ Wolf Upgrade
2.99 USD
Buy
Wolf ➞ Panda Upgrade
9.99 USD
Buy
Panda ➞ Tiger Upgrade
14.99 USD
Buy
Tiger ➞ Dolphin Upgrade
19.99 USD
Buy
Dolphin ➞ Flamingo Upgrade
34.99 USD
Buy
Flamingo ➞ Falcon Upgrade
64.99 USD
Buy