iVim does not have git (cannot install plugins using vim-plug), and Files does not show hidden files (downloading and unzipping manually is painful), so this is a workaround using Working Copy.
This repository should be cloned to a Working Copy synced folder: On my iPad/iVim/ivim. Then move .vimrc, containing
source ~/ivim/vim-plug/plug.vim
source ~/ivim/dotfiles/vim/.vimrcone directory up. vim-plug and the main vimrc (at WeixuanZ/dotfiles, included also as a submodule) are sourced.
Only the plugins included as submodules will be loaded by vim-plug. These are a subset of the ones included in the main vimrc, since not all of them are supported due to iOS limitations.