Great white is a full of mycorrhizal fungi which are good for the roots system , it's create a better and stronger roots system by taking advantage of the fungi/roots symbiosis.
Recharged is trichoderma and mycorrhizal fungi so basicly you can use both for the same purpose , each of them will increase the roots system , sill develop good bacteriars.
As they are similar to me I would have try to get a sample of each to compare and choose one of them