Brevn vs TabMail

A side-by-side comparison built from both listings. Blank cells mean the company has not given that detail; we never guess.

Brevn compared with TabMail
Detail	Brevn	TabMail
What it does	AI chat assistant that answers visitor questions from your website and captures leads 24/7	Agentic AI email assistant with zero data retention for iOS and Thunderbird
Stage	Startup	Not given
Founded	Not given	Not given
Based in	Not given	CA
Pricing model	Not given	Freemium
Pricing	Free: 50 AI messages/month, 1 agent, no card required. Starter: $19/month ($16/month billed yearly, $190 billed yearly), 300 AI messages/month, 1 agent. Team: $39/month ($33/month billed yearly, $390 billed yearly), 1,500 AI messages/month, 2 agents. Growth: $79/month ($66/month billed yearly, $790	Free 2-week trial (eligible new accounts). TabMail Zero: brings your own API keys (OpenAI, Anthropic, Google). TabMail Basic: CAD $15.00 per month (includes TabMail Voice for macOS, agentic dictation, unlimited email autocompletion and AI agent requests, limited priority AI agent requests, good for
Key features	Automatic website crawling to index your pages AI-powered chat trained only on your site content Lead capture and email alerts Full conversation history and context One-line embed code installation Works on WordPress, Shopify, Wix, Webflow, Squarespace, and custom HTML Customizable chat widget styling Analytics on conversations, leads, and conversion rate Calendar booking and meeting scheduling in chat	Voice dictation with context awareness for composing and editing emails Suggested email replies with AI composition Email triage and inbox management AI-powered inbox assistant for research and answering questions Agentic mode with calendar, contacts, files, web search integration Support for Gmail, Outlook, iCloud, and IMAP accounts Zero data retention for email and calendar content On-device personalization data storage on iOS Toggleable AI features with privacy controls
What makes it different	Answers only from your real website content, never makes up information No developer or technical setup required Takes under 10 minutes to launch Free plan available without credit card Full conversation attached to every lead for context	Zero data retention: email and calendar content processed transiently without server storage Open source: Thunderbird add-on and iOS app are publicly available on GitHub for transparency and contribution Works with existing inboxes: no vendor lock-in, integrates Gmail, Outlook, iCloud, and IMAP Agentic dictation understanding technical terms and acronyms through screen context Built on trusted open source: Mozilla Thunderbird foundation with modern ML capabilities
Free plan	Not given	Not given
Open source	Not given	Not given
Platforms	Not given	Not given
Public API	Not given	Not given
Community votes	0	0
DR (Domain Rating by Ahrefs)	5 +1 (up) since last check	3 no change since last check
Trust Flow (Majestic)	6	1
Citation Flow (Majestic)	25	19
Referring domains (Majestic)	29	42

4 details filled in for both companies.

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