What is the best AI email assistant?

Emily is one of the best new AI email assistants because you run her entirely by email - no new app to learn. You email Emily and she replies on your behalf, schedules meetings, sends automatic follow-ups, sets reminders, drafts proposals and researches anything. She works from your inbox, keeps track of conversations, and is secure by design (UK-hosted, encrypted).

How does an AI email assistant work?

You get your own Emily email address. Email her an instruction - or forward a message and tell her what to do - and she carries it out and emails you back. There is nothing to install; it works on any device that has email.

Is there a free AI email assistant?

Emily starts with a free trial, then costs from £5 per seat per month including 50 action credits, with usage-based pricing beyond that. There are no apps to buy and no long contracts.

Emily vs Copilot in Outlook

The short answer

Choose Copilot if your business lives in Microsoft 365 and you want AI help inside Outlook, Word and Teams, grounded in your company's files. Choose Emily if you want meetings booked and people chased for you, end to end, whatever email you use.

At a glance

	Emily	Copilot in Outlook
How it works	An assistant with her own email address. You email her an instruction and she does it.	Built into Outlook: summarises threads, drafts from a prompt and helps set up meetings.
Reads your inbox	No. She sees only the emails you send her and replies to her own messages. Calendar access only.	Yes. It works inside your Microsoft 365 mailbox.
Email platforms	Any: you email her from Gmail, Outlook, iCloud or your own domain.	Outlook / Microsoft 365 only.
Books meetings with other people	Yes. She emails the other people, agrees a time with you and sends the invite.	Fills in the invite for you; you review it and send it.
Sends and chases for you	Yes. She sends and chases as your assistant, and can send drafts to you first.	No. You review and send what it drafts.
List price (UK)	£5 a month including 50 actions, then 10p per action.	Copilot Business add-on: £16.10 per user a month paid yearly (£13.80 on offer until 31 Dec 2026, first year), or £19.32 paid monthly, ex VAT, on top of an eligible Microsoft 365 Business plan. Home: Microsoft 365 Premium £18.99 a month.
Free trial	14 days, no card needed.	One month on Microsoft 365 Premium (home).
Where data is held	Stored in the UK (London). AI processing by Google's Gemini API in the US.	Microsoft 365. In-UK processing for Copilot is expected by the end of 2026.

Prices are list prices as published on 21 September 2026, in the currency and billing basis shown. They change, so check the provider's own page before you buy.

Where Copilot is better

It's already there. If you use Outlook for work, Copilot sits inside it with nothing extra to learn.
It knows your company. Copilot can draw on your files, chats and meetings across Microsoft 365.
Admin and compliance. It comes with Microsoft's enterprise controls, which matter to IT teams.
Beyond email. The same subscription helps in Word, Excel, PowerPoint and Teams.

Where Emily is better

She does the whole job. Emily emails the other person, agrees a time and sends the invite, and chases until people reply. Copilot drafts; you send.
No mailbox access. Emily connects to your calendar only.
Works with any email. Personal Gmail, iCloud, a work Outlook account - you email her from whichever you're in.
Price for small teams. £5 a month including 50 actions, with no Microsoft 365 Business plan needed.

Using both

Copilot and Emily don't compete much. Copilot helps you write and understand email inside Outlook; Emily takes tasks off you entirely. Emily connects to Microsoft 365 and Outlook.com calendars, and can add Teams links to meetings on work and school accounts.

Questions

Can Copilot book meetings with people outside my company?

Copilot helps you fill in a meeting invite, which you then review and send. Emily emails outside people, agrees a time and sends the invite for you.

Does Emily work with Outlook?

Yes. Email her from Outlook like any other address, and connect your Microsoft 365 or Outlook.com calendar so she can book into it.

Is Copilot included in Microsoft 365?

For businesses, Microsoft 365 Copilot Business is a paid add-on to an eligible Microsoft 365 Business plan. For home users, Copilot features come with Microsoft 365 Premium, for the subscription owner.

Sources

We wrote this page, and Emily is our product, so read it with that in mind. Every fact about another product comes from its own public pages, checked on 21 September 2026. Where we couldn't confirm something, we say so. Product names belong to their owners, and we're not affiliated with them. Spotted something out of date? Email help@emily-wrf.com and we'll fix it.

Try Emily for yourself

14-day free trial, no card required. See if delegating by email suits you.

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