They wont fight, or try to purposly harm each other.
However, the ADF may try to eat the snails antenna.
ADF are really hard of sight, and will lunge at anything that passes by they think they can eat.
I've watched mine grab ahold of snail's antenna, most usually let go when the snail retracts into its shell, but I have one female that is extremly aggresive and wouldnt let go until I pick up the snail right out of the water.
I had to re home my snails after this.
The shrimp known as japonica or amano are best at eating algea, I wouldn't trust a ghost shrimp, mine took a liking to platy fry and has killed smaller red nose shrimp.
Never kept frogs but if it is a proper dwarf i don't see ther being a problem with large apple snails and amano shrimp.