when to use exchanging app and when to use komodo app

hello,
You could use exchanging app when you have transactions you cannot do with komodo app like purchase of ton coin or buy of usdt bep20 to fund your redotpay account which has lower fee on exchanging app. Or to particpate on their monthly draw when doing a review each time.
You could use komodo app for transactions possible to use like trade polygon to ltc and then fund your webmoney account because polygon doesn't exist on webmoney, to send exact amount because price flunctuates on exchanging app.