No.
make sure you fed it what it needs and it will grow the size it was meant to be
For a giant African land snail it is 5-12 inches (WOW)
no every time they grow too big for a shell they have to find a larger one
Some snails in Houston can grow to the size of a baseball.
giant snail
They are big and move as fast as land snails. If they are against clear glass you can see their mouth opening and closing.
10 foot
A mature size of 6 inches/15 centimeters is how big a freshwater snail can grow. This isn't a typical size. Instead, it's the adult size of the apple snail [Pomaceamaculata]. The apple snail is considered the largest of the freshwater snails.
how big can it grow
BIG!
It depends on what type of snails you have.the small snails which appear in tanks will not get much bigger then 1cm.but if you have an apple snail or other store bought snails they can grow to be quite big.i have an apple snail which is over 50mm by 50mm.