The FrogMart is where you can buy frogs from levels 1 to 8 at 75% of the frog's max value. There is one frog slot available per frog level and you can buy the same frog as many times as you like. Purchased frogs are shipped to your Mailbox and are subject to delivery time as indicated.
Nine frogs are available for purchase each day (one promotional frog and one regular frog of each of the first eight levels). However, each slot only unlocks once you have reached that frog's required level (you cannot buy a level 7 frog until you have reached level 7). The frogs available in the FrogMart change daily.