Missive is one of the best shared inboxes there is, built for teams that run on email. BusinessOS is built for the business that is mostly you: the inbox, and the clients, proposals and follow-ups the inbox is about.
14 days free. No card needed.
Judged for a business of one to five people that sells its time: a studio, a consultancy, a trade, a practice.
| Capability | Missive | BusinessOS |
|---|---|---|
| What it is | A shared inbox for teams that run on email. | One workspace for a small service business, run by an agent that asks before it acts. |
| Gmail, Office 365 and IMAP accounts, plus SMS and social channels. | Gmail and Microsoft 365, or email on your own domain with no outside mailbox at all. | |
| Calendar | Yes, with teammates’ availability. | Yes, with Gmail or Microsoft 365. Bos drafts the invite with a Meet or Teams link. |
| Clients | Shared address books. Fuller records through HubSpot, Pipedrive or Salesforce. | Contacts and companies kept current from signatures, invites and meeting transcripts. |
| Proposals | Not offered. | From templates, shared as a link the client opens and accepts online. |
| Tasks | Turn emails into tasks, with assignees and due dates. | A board with a Needs approval column. Follow-ups are created from emails, meetings and proposals. |
| Website | Not offered. | Built for you from your business profile and hosted. Change the wording in the editor or ask Bos. |
| AI | Drafts and searches. Paid credits, or your own OpenAI, Anthropic or Google key. | Bos is included. It drafts, triages and chases, and nothing is sent without your approval. |
Built for the business that is mostly you, not for a team that needs coordinating.
Missive Productive is the shared inbox, its AI assistant and integrations, per person, and the website is yours to build. BusinessOS is the whole workspace and Bos, email on your own domain, and a website built for you, hosted and kept up to date.
| Plan | Just you | 3 people | 5 people |
|---|---|---|---|
| Missive Productive | $24 | $72 | $120 |
| Plus a website, Squarespace Basic | £12 | £12 | £12 |
| BusinessOS, website included | £43.20 | £73.60 | £104 |
Paying annually, shown per month, before tax. Missive prices are from its own pricing page in October 2026 and are charged in US dollars. Squarespace Basic is a builder you design and write yourself; its price is from the same month. Our website is £49 once to build, and a domain you register through us is at cost.
If one of these is you, use Missive. It is good at what it is for.
Missive details checked against Missive’s pricing, features and AI assistant pages in October 2026. Something out of date? Tell us at [email protected].
For a business of one to five people, yes. Missive is a shared inbox. BusinessOS is the inbox plus contacts, calendar, tasks, proposals and files, with Bos, an AI agent, working across all of them. If several people need to assign and comment on the same threads, Missive is the better tool for that.
Not seat for seat. Missive's Productive plan is $24 a user a month on annual billing, and BusinessOS is £54 a month for everything, including your first user. But Missive is the inbox only. BusinessOS also covers your clients, proposals, email on your own domain and your website hosted, which with Missive are a CRM, a proposal tool, a mail host and a web host on top. Each extra person is £19.
No. Bos drafts replies, proposes meetings and suggests tasks. Nothing is sent, and no invite goes out, without your approval. Every action Bos takes is recorded in the activity log.
Yes. Connect Gmail or Microsoft 365 over OAuth, and the calendar comes with it. Or take email on your own domain directly, with no outside mailbox to connect.
No. BusinessOS covers email, and Bos on WhatsApp for you to talk to. It does not bring in SMS, Instagram, Messenger or live chat from customers.
Yes. 14 days with every feature, and no card needed to start.
Free for 14 days. No card needed.