Webkul Helpdesk Support‑UVdesk

Usually we do not try new apps, But none of the other suits our requirements. This was exactly what we were looking for and works extremely well.

Pros:
Can convert all mails to Tickets.
Highly customizable.
Can have multiple forms with multiple fields
Can have a knowledgebase
Can connect with multiple apps
Easy to use UI for the Backend
Saved Replies and templates to tickets and custom HTML
Workflows

Their support is excellent. They connected us through skype and solved all our issues and helped us in installation and customization.

Cons.
Not any we can think of. The app has too many options and will require sometime to integrate and get used to it. However it still works immediately after you install.

Conclusion:
Must have app for customer support and provide professional ticket system and knowledge-base for customers. Give it a try you will not regret.