Differences

Other plugin offering similar functionality include: vim-slime, vim-iron, neoterm and others.

Typically these plugins:

• can send text to screen/tmux, not just vim :terminal.
• try to adjust to the specific REPL the user is running.
• allows only one-way communication (sending from vim to REPL).
• can send text to REPL even when it is not adjacent to the current window.

In contrast vim-sendtowindow plugin tries do more by doing less:

• works instantly without a need to adjust the REPL settings
• has no changeable setting, exported commands or hidden "smart" behaviours
• can send text between any two adjacent vim windows (i.e. from :terminal to regular buffer)
• does not support sending text from vim to other applications (screen/tmux)