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Which AI should help me write and answer email?

Draft, reply to and triage email without living in your inbox. Last reviewed · Scored with the general rubric

How to read this: scores are editorial estimates from public information and documented capabilities. We did not run these tools, so every score is labelled Docs-only. Prices are as reported and may be out of date.

Best pick Docs-only

Gemini in Google Workspace

81of 100

Already inside Gmail if you use Google Workspace, so there is no new app or login to adopt. Google's October 2026 announcement describes Gemini working inline in Gmail, Docs, Sheets and Calendar.

Best for
Gmail users who want drafting without switching tools
Watch out
Only helps if your mail lives in Google. What you get depends on your Google plan.
Price (as reported)
Plan-dependent. One roundup lists Gemini in Sheets as included from Business Standard at $14/user/month billed annually. Check Google's plan page.
Links
Official site · Sources and details
Price varies by plan
Score breakdown
Output quality for the job23/30
Ease for a non-developer14/15
Value for money12/15
Reliability and vendor stability9/10
Privacy and data control6/10
Integrations and ecosystem9/10
Momentum8/10

Runners-up

#2 Docs-only

Superhuman Mail

74of 100

A fast, opinionated email client with AI drafting built in. Pricing is on its own plans page: Pro $12/mo billed annually.

Best for
People who live in email all day
Watch out
You have to move your mail into a new client. Third-party roundups list different tiers.
Price (as reported)
Per superhuman.com/plans (read 27 Oct 2026): Free $0; Pro $12/mo billed annually ($15 monthly); Business $33 annual ($40 monthly). Third-party roundups list different tiers, so check the vendor page.
Links
Official site · Sources and details
Score breakdown
Output quality for the job23/30
Ease for a non-developer12/15
Value for money9/15
Reliability and vendor stability8/10
Privacy and data control6/10
Integrations and ecosystem8/10
Momentum8/10
#3 Docs-only

Grammarly

73of 100

Polishes tone and clarity in any email box and browser app, so it works with whatever mail you already use.

Best for
Anyone who wants better wording in any app
Watch out
Rewrites text; it does not triage your inbox. Price reports conflict.
Price (as reported)
Conflicting reports: Pro about $12/mo billed annually versus about $30 billed monthly. Verify on the vendor site.
Links
Official site · Sources and details
Price conflict between sources
Score breakdown
Output quality for the job19/30
Ease for a non-developer14/15
Value for money10/15
Reliability and vendor stability9/10
Privacy and data control6/10
Integrations and ecosystem8/10
Momentum7/10
#4 Docs-only Agent

Fyxer AI

67of 100

Sorts the inbox and drafts replies in your voice. Described as working inside Gmail or Outlook.

Best for
Busy owners who want inbox triage
Watch out
Price reports conflict, and the sources are roundups, not vendor documentation.
Price (as reported)
Conflicting third-party reports ($22.50 vs $49 for the Pro tier). Not verified; check the vendor site.
Links
Official site · Sources and details
Price conflict between sources
Score breakdown
Output quality for the job21/30
Ease for a non-developer13/15
Value for money8/15
Reliability and vendor stability6/10
Privacy and data control6/10
Integrations and ecosystem6/10
Momentum7/10

Compared

#ToolScoreBest forEvidence
1Gemini in Google Workspace81Gmail users who want drafting without switching toolsDocs-only
2Superhuman Mail74People who live in email all dayDocs-only
3Grammarly73Anyone who wants better wording in any appDocs-only
4Fyxer AI67Busy owners who want inbox triageDocs-only

Sources