Mailbox MCP vs Betula

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

Mailbox MCP compared with Betula
Detail	Mailbox MCP	Betula
What it does	Connect Claude, ChatGPT or any AI to your email mailbox	AI assistant with its own phone number that answers calls, remembers interactions, and manages tasks
Stage	Established	Not given
Founded	2002	Not given
Based in	GB	Not given
Pricing model	Freemium	Paid
Pricing	Free: 5 calls per mailbox per day, no card required. Pro: £34.99 per mailbox per year plus VAT (£2.92 monthly equivalent). Team Access: Team 3 at £119.99 per year plus VAT, Team 5 at £199.99 per year plus VAT, Team 10 at £399.99 per year plus VAT per account.	Basic: 36¢/min plus $2.50 monthly service fee (under $10/month for 20 minutes of use). Standard: 30¢/min plus $2.50 monthly service fee (about $20/month for an hour of use). Growth: Contact Sales for custom pricing. Users can set their own monthly spending limit.
Key features	Read email without marking as read Read attachments: PDFs, spreadsheets, photos Reply in thread with proper headers Send as any of your email aliases Email routines on a schedule Permission levels per connection Works with Gmail, Outlook and IMAP	Answers and makes calls Blocks spam calls Remembers conversations and interactions Manages appointments and reminders Joins meetings and takes notes Captures and recalls ideas Provides personalized daily updates Researches and coordinates tasks Call forwarding integration Conditional and unconditional call forwarding
What makes it different	Leaves mailbox completely untouched—no duplicate sent items, no marked-as-read flags, threading preserved Works with any MCP-compatible AI—not limited to Claude or ChatGPT Attachments never encoded—up to 20 MB, four ways to attach without passing through AI Email routines run automatically on schedule without manual prompts	Always available second brain that never stops working Remembers every interaction automatically Captures action items and decisions from calls and meetings Pay only for what you use with customizable spending limits Serves US and Canada with phone number integration
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)	26 +1 (up) since last check	21 −1 (down) since last check
Trust Flow (Majestic)	34	8
Citation Flow (Majestic)	32	22
Referring domains (Majestic)	61	38

5 details filled in for both companies.

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