MailMaestro vs Kerna

MailMaestro8.8Visit Kerna7.8Visit

Higher score MailMaestro #2 in AI Email Writing Tools 8.8/10 Free plan · 14-day trial Free planFree trial✓ 0 of 3 features Visit MailMaestro

vs

Kerna #6 in AI Email Writing Tools 7.8/10 Free plan Free plan✓ 2 of 3 features Visit Kerna

• MailMaestro fits best

  Gmail and Outlook inbox productivity

• Kerna fits best

  Multilingual email and inbox workflows

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Side by side

Feature	MailMaestro 8.8/10 Visit ↗	Kerna 7.8/10 Visit ↗
At a glance
Editor score	8.8	7.8
Ranking	#2 in AI Email Writing Tools	#6 in AI Email Writing Tools
Best for	Gmail and Outlook inbox productivity	Multilingual email and inbox workflows
Pricing model	Free plan + paid	Free plan + paid
Starting price	$12/seat/mo	€12/mo
Free plan	✓	✓
Free trial	14 days	—
Deployment	Cloud, Browser extension	Cloud
Platforms	Web, Chrome extension	Web, Windows, macOS
Integrations	5 integrations	6 integrations
Features MailMaestro 0/3 · Kerna 2/3
Tone controls	Not checked yet	✓ (best)
Custom instructions	Not checked yet	✓ (best)
Browser extension	Not checked yet	—
Specs
Email context input	Not checked yet	Thread
Mail client support	Not checked yet	Both
Supported languages	Not checked yet	45 languages
Our review
Pros	Supports AI composition, contextual replies, and draft improvement Adds inbox triage, labels, summaries, reminders, and meeting replies Offers writing-style customization plus shared team templates	Drafts replies and new messages with selectable tones and intents Translates email in 45 languages and summarizes threads Extracts data from emails and attachments for export to common office tools
Cons	Free usage is limited to three compose, reply, and improve requests weekly Automatic sending is not supported; generated replies remain drafts Advanced summaries and team features require a paid plan	Starter, Standard and Pro plans are limited to one user No browser extension is listed among its supported features Usage is governed by monthly token allowances or shared token pools
Our verdict	MailMaestro is an AI email assistant for professionals who want help composing, refining, and managing messages in Gmail and Microsoft Outlook. Its feature set covers prompt-based composition, context-aware reply drafting, selectable tone,… Read the review →	Kerna is an AI email assistant for people and organizations working in Gmail or Outlook. It drafts replies from email threads, composes new messages from topics or saved instructions, summarizes conversations, translates email in 45… Read the review →

Strengths and trade-offs

• MailMaestro — where it wins

  • Supports AI composition, contextual replies, and draft improvement
  • Adds inbox triage, labels, summaries, reminders, and meeting replies
  • Offers writing-style customization plus shared team templates

  Where it doesn't

  • Free usage is limited to three compose, reply, and improve requests weekly
  • Automatic sending is not supported; generated replies remain drafts
  • Advanced summaries and team features require a paid plan

• Kerna — where it wins

  • Drafts replies and new messages with selectable tones and intents
  • Translates email in 45 languages and summarizes threads
  • Extracts data from emails and attachments for export to common office tools

  Where it doesn't

  • Starter, Standard and Pro plans are limited to one user
  • No browser extension is listed among its supported features
  • Usage is governed by monthly token allowances or shared token pools

• MailMaestro8.8/10 · Free plan · 14-day trial

  A practical AI assistant for writing, organizing, and following up across Gmail and Outlook.

  Visit MailMaestroFull verdict →
• Kerna7.8/10 · Free plan

  A broad email workflow assistant for multilingual drafting, triage and extraction.

  Visit KernaFull verdict →