Legio transmits customers’ direct messages from your Facebook page to a designated Slack channel and your replies back to customers.Aside from Facebook, it does the same with Telegram (bot), Viber (public account) and LINE (business account). You can have presence in any or all.More info and detailed guides: https://legiocs.comPricing: $19.99 per page per month. 7 days free trial.This app does not collect e-mails.