subtree is more transparent to users of the repo as it is basically pulling in a copy of the repository during the clone. submodules on the other hand are only

subtree is more transparent to users of the repo as it is basically pulling in a copy of the repository during the clone. submodules on the other hand are only storing the metadata pointer to the child repo and require users to manually clone. I have more information regarding subtree (and subtree merge strategy) on this answer: https://stackoverflow.com/a/33579069/2105636 https://stackoverflow.com/a/33579069/2105636