Here are the top 10 fastest-growing work apps of 2018

Mailshake is used for email marketing. It allows users to customize these emails using tools like templates, bulk email, auto follow ups, and tracking for clicks and replies.

This is a plugin for the WordPress content management system that lets users make their own web forms.

Bonjoro allows users to send personalized "welcome" or "thank you" videos to their customers.

Bitly, a popular web link shortener, also has business uses — it can help companies track how many times a specific link was clicked, so as to track their marketing efforts.

Facebook Offline Conversions is a tool that allows customers to connect data from their offline systems, like cash registers or customer databases, up to their Facebook Ads account to help with marketing.

GitLab is all about the way software gets made, and it's a leader in the space. This software includes tools for planning projects, as well as sharing code amongst teams of developers.

Dubsado is used for customer relationship management, but also includes forms and proposals for starting projects, as well as features for to-do lists, invoices, signing contracts and scheduling appointments.

Front is a shared inbox that puts a team's emails, apps and members together in one collaborative workspace.

ManyChat helps users easily build bots for Facebook Messenger to share personalized information with customers on Facebook, and it includes features such as broadcasts, analytics and scheduled posting.

"A lot of us considered bots more of a trendy thing rather than materializing into something that finds a killer use case," Foster said. The fact that ManyChat is number 1 on the list shows that bots are more than just a fad.