Kerna vs WriteMail.ai

Kerna7.8Visit WriteMail.ai7.6Visit

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

vs

WriteMail.ai #8 in AI Email Writing Tools 7.6/10 Free plan Free plan✓ 2 of 3 features Visit WriteMail.ai

• Kerna fits best

  Multilingual email and inbox workflows

• WriteMail.ai fits best

  Broad email writing at a low price

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Side by side

Feature	Kerna 7.8/10 Visit ↗	WriteMail.ai 7.6/10 Visit ↗
At a glance
Editor score	7.8	7.6
Ranking	#6 in AI Email Writing Tools	#8 in AI Email Writing Tools
Best for	Multilingual email and inbox workflows	Broad email writing at a low price
Pricing model	Free plan + paid	Free plan + paid
Starting price	€12/mo	$60/yr
Free plan	✓	✓
Free trial	—	—
Deployment	Cloud	Cloud, Browser extension, Mobile
Platforms	Web, Windows, macOS	Web, Windows, macOS, iOS, Android, Chrome extension
Compliance	GDPR	SOC 2
Integrations	6 integrations	5 integrations
Built for	Solo, Small business, Mid-market, Enterprise	Solo, Small business, Mid-market, Enterprise
Features Kerna 2/3 · WriteMail.ai 2/3
Tone controls	✓	✓
Custom instructions	✓ (best)	Not checked yet
Browser extension	—	✓ (best)
Specs
Email context input	Thread	Thread
Mail client support	Both	Both
Supported languages	45 languages (best)	10 languages
Our review
Pros	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	Drafts complete emails, replies, subject lines, and rewrites Supports tone, mood, length, formality, and 30+ languages Works across web, desktop, mobile, extensions, add-ins, and API
Cons	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	Free plan is limited to 5 AI emails per month Paid plans cap monthly generations at 50, 150, or 500 emails Advanced Outlook features may not suit users outside the Microsoft ecosystem
Our verdict	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 →	WriteMail.ai is an AI email writing tool for individuals and teams who want help creating messages from brief descriptions or email-thread context. It can generate complete emails, context-aware replies, subject lines, and improved… Read the review →

Strengths and trade-offs

• 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

• WriteMail.ai — where it wins

  • Drafts complete emails, replies, subject lines, and rewrites
  • Supports tone, mood, length, formality, and 30+ languages
  • Works across web, desktop, mobile, extensions, add-ins, and API

  Where it doesn't

  • Free plan is limited to 5 AI emails per month
  • Paid plans cap monthly generations at 50, 150, or 500 emails
  • Advanced Outlook features may not suit users outside the Microsoft ecosystem

• Kerna7.8/10 · Free plan

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

  Visit KernaFull verdict →
• WriteMail.ai7.6/10 · Free plan

  Broad email drafting and reply support with a free plan and paid options from $5 per month annually.

  Visit WriteMail.aiFull verdict →