Trengo
Trengo is a help desk tool that allows you to merge Email, Facebook Messenger, WhatsApp, SMS, voice, live chat, and many more applications in one place.
Pros:
- Consolidates all inboxes in one place.
- Enables the creation of an online help center for internal use.
- Supports internal team collaboration.
Cons:
- Costs can significantly increase with addons.
- Lack of Office 365 integration.
- Requires a minimum of 4 seats to use the WhatsApp feature.