Compare

MailGeni next to the alternatives.

Checked against each product’s own site on 10 September 2026. Prices are per user per month, billed yearly, in the currency the seller shows.

Verified 10 September 2026Report a correction

No product in this table signs a PDF inside the thread, and none but Superhuman Mail (mobile) dictates a whole email by voice.

Who this is for

Three signs you need more than a native assistant.

50+ emails a day

Triage, draft and send without leaving the thread you are reading.

More than one mailbox

One panel across Gmail and Outlook, personal and work, with shared mailboxes.

Documents to sign by email

Fill and sign the PDF in the thread, then reply with it attached.

Light inbox? The Free plan covers ten AI actions a month on Gmail and Outlook.

Buyer comparison

Gemini, Copilot, MailGeni.

The three options most people weigh. Rows are the tasks that differ.

Task	Gemini in Gmail	Copilot in Outlook	MailGeni
Drafts a reply	Yes. Help me write is free in the US.	Yes	Yes
Tone and intent chips	Partial: Formalize, Elaborate, Shorten, Polish	Tone list (Neutral, Direct, Casual, Formal) and length; no intents	Twelve tones and four intents; the draft rewrites
Sign a PDF in the thread, reply with it attached	No	No	Yes (Expert plan)
Know who opened what	No	No	Yes
Dictate with your own dictionary and commands	Partial: voice search only	Native Dictate, not Copilot	Yes, both hosts
Clean the inbox / unsubscribe	Partial: by prompt	Partial: Sweep is native; triage in preview	Yes
Signature card per email	No	No	Yes
Works in both Gmail and Outlook	Gmail only	Outlook only	Both, one panel
Ask your inbox	Yes	Yes, work licence only	Yes (Expert plan)
Shared inbox	No	Yes, work licence only	Yes, Microsoft 365 shared mailboxes
Price	Google AI Pro $19.99 / £18.99; Workspace Business Starter $7 includes Gemini in Gmail	Microsoft 365 Personal $9.99 / £8.49 (capped); Copilot Business $21 ($18 promo to end 2026); Enterprise add-on $30	Pro £8 (£12 monthly); Expert £15 (£19 monthly); Free: 10 actions a month

Gemini in Gmail

Drafts a reply: Yes. Help me write is free in the US.
Tone and intent chips: Partial: Formalize, Elaborate, Shorten, Polish
Sign a PDF in the thread, reply with it attached: No
Know who opened what: No
Dictate with your own dictionary and commands: Partial: voice search only
Clean the inbox / unsubscribe: Partial: by prompt
Signature card per email: No
Works in both Gmail and Outlook: Gmail only
Ask your inbox: Yes
Shared inbox: No
Price: Google AI Pro $19.99 / £18.99; Workspace Business Starter $7 includes Gemini in Gmail

Copilot in Outlook

Drafts a reply: Yes
Tone and intent chips: Tone list (Neutral, Direct, Casual, Formal) and length; no intents
Sign a PDF in the thread, reply with it attached: No
Know who opened what: No
Dictate with your own dictionary and commands: Native Dictate, not Copilot
Clean the inbox / unsubscribe: Partial: Sweep is native; triage in preview
Signature card per email: No
Works in both Gmail and Outlook: Outlook only
Ask your inbox: Yes, work licence only
Shared inbox: Yes, work licence only
Price: Microsoft 365 Personal $9.99 / £8.49 (capped); Copilot Business $21 ($18 promo to end 2026); Enterprise add-on $30

MailGeni

Drafts a reply: Yes
Tone and intent chips: Twelve tones and four intents; the draft rewrites
Sign a PDF in the thread, reply with it attached: Yes (Expert plan)
Know who opened what: Yes
Dictate with your own dictionary and commands: Yes, both hosts
Clean the inbox / unsubscribe: Yes
Signature card per email: Yes
Works in both Gmail and Outlook: Both, one panel
Ask your inbox: Yes (Expert plan)
Shared inbox: Yes, Microsoft 365 shared mailboxes
Price: Pro £8 (£12 monthly); Expert £15 (£19 monthly); Free: 10 actions a month

Full matrix

16 products, 12 capabilities.

Every cell was read from the product’s own site or docs on 10 September 2026. Numbered cells carry a condition. Scroll the table sideways; the columns are numbered below.

YesPartialNo¹Condition applies, see notes

Product	Where it lives	1Voice dictation	2AI replies	3Tone & intent	4Tags & snippets	5Signature card	6Sign & fill	7Meeting invites	8Ask your inbox	9Clean inbox	10Open tracking	11Shared inbox	12Gmail + Outlook	Price (yearly, per user/mo)
MailGeni	Overlay inside Gmail and Outlook						¹		¹			²		£8 Pro · £15 Expert
Fyxer	Background agent + dashboard; drafts land in Drafts	³		⁴		⁵		⁶	⁷					$22.50
MailMaestro	Outlook add-in + Gmail extension			⁸	⁹			¹⁰		⁹				$12
Ellie	Extension + overnight drafts													Not published (from $19 monthly, unverified)
Serif	Background agent on the API + own apps											¹¹		$30 monthly; yearly not published
alfred_	Own dashboard + SMS assistant												¹²	$25 ($29.99 monthly)
Cora (Every)	Labels + drafts + own Brief app												¹³	$20
Superhuman Mail	Replacement client	¹⁴							¹⁵					$25
Gemini in Gmail	Native in Gmail													$19.99 / £18.99 consumer; from $7 Workspace
Copilot in Outlook	Native in Outlook	¹⁶		¹⁷				¹⁸	¹⁸			¹⁸		$9.99 / £8.49 personal; $21 business; $30 enterprise
Gmelius	Gmail overlay										¹⁹	²⁰		$19
Jace	Gmail extension + web app, Outlook sync													$20
Mailbutler	Overlay in Gmail, Outlook, Apple Mail		²¹											$7 (no AI) · $11 (AI)
Shortwave	Replacement client, Gmail only													$30 monthly
Spark	Replacement client													$8.25
Inbox Zero	Add-on over existing Gmail/Outlook; self-host option													From $20 monthly

1 Voice dictation

2 AI replies

3 Tone & intent

4 Tags & snippets

5 Signature card

6 Sign & fill

7 Meeting invites

8 Ask your inbox

9 Clean inbox

10 Open tracking

11 Shared inbox

12 Gmail + Outlook

1 Expert plan

2 Microsoft 365 shared mailboxes, from a work Outlook account

3 Chat mic only

4 One standing custom tone

5 Text signature editor

6 Booking link only

7 Professional plan, $37.50

8 Tone, no intents

9 Outlook only

10 Proposes times

11 Team plan, $50

12 In its own dashboard

13 Gmail only

14 Mobile only

15 Business plan, $33

16 Native Dictate, not Copilot

17 Tone

18 Work licence only

19 Withdrawn for new users

20 Growth plan, $25

21 Smart plan, $11

Price

Yearly price, per user per month.

Bars are positioned in USD; £ converted at 1.27 for position only. Hatched bars have no verified yearly price.

MailGeni Pro

£8 · ≈$10

MailGeni Expert

£15 · ≈$19

Mailbutler

$7 · $11 (AI)

Spark

$8.25

M365 Personal + Copilot

$9.99

MailMaestro

$12

Gmelius

$19

Google AI Pro

$19.99

Jace

$20

Cora (Every)

$20

Copilot Business

$21

Fyxer

$22.50

Superhuman Mail

$25

alfred_

$25

Copilot enterprise add-on

$30

Serif

$30 · monthly only

Shortwave

$30 · monthly only

Inbox Zero

From $20 · monthly only

Ellie

Not published

Limits

What MailGeni doesn’t do.

No native mobile app

An installable web app instead, with dictation.

No meeting note-taker

MailGeni does not join or transcribe calls.

No snooze or send-later

Scheduling stays with your mail client.

How this page was checked

Each claim was read from the product’s own website, pricing page or documentation on 10 September 2026, and recorded as yes, partial or no with the condition attached. Prices are the yearly rate shown by the seller. Where a seller publishes no yearly rate, the monthly rate is marked as such.

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