Any business could use this. The core of the product is to help you build and nurture relationships with those you do business with.
You have your Contacts in Lantern, authenticate your email, calendar and obtain a Lantern phone number. From there, any communication whether email, calendar events, or phone calls are attached to that Contact. When another team member (or yourself in the future) looks at a Contact or Deals associated with that Contact, they will be able to refresh themselves on all communicate between that Contact and every person within your business.
We integrate natively with GMail, IMAP, and Exchange Emails as well as Gcal and Exchange Calendars. We also natively sync with MailChimp and as of next week, Evernote.
Since we integrate with Zapier, we can do light push/pulls from their 300+ services which you can find here - https://zapier.com/zapbook/
Out of curiosity and ignorance, I need to ask: what is the size (or examples) of a small business that would use this?