Sickle vs VitalSend™

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

Sickle compared with VitalSend™
Detail	Sickle	VitalSend™
What it does	Email MCP server for Claude, Cursor and other AI agents to access every mailbox you own	Send files encrypted from AI agents
Stage	Not given	Not given
Founded	Not given	Not given
Based in	GB	SE
Pricing model	Free trial	Not given
Pricing	Monthly: €8.99/month after 7-day free trial. Yearly: €30/year (€2.50/month equivalent, 72% savings). Includes both the Mac app and the MCP connector.	Free: 3 transfers per month up to 1 GB each with verified email account. One transfer: from €2.50 (up to 1 GB), €3.50 (up to 10 GB), €5.50 (up to 100 GB), €9.50 (up to 1 TB). Basic: €9/month (first month €0.90), 20 credits monthly. Pro: €19/month (first month €1.90), 80 credits monthly. Extra credit
Key features	Search across multiple mailboxes simultaneously Read full email threads with conversation history Move, archive and mark emails as read Scoped permissions: read, change, and send separately Attach files up to 18 MB to drafts and emails Download and open email attachments Native macOS mail client included Support for multiple email providers Encrypted file handling during transfer Revoke access anytime within the hour	End-to-end encryption with XChaCha20-Poly1305 One-time download only, then automatic destruction Supports files up to 1 TB Password protection included by default Integration with Claude, Cursor and Claude Desktop API key support for CI and scripts Resumable uploads for large files No readable file contents stored by service
What makes it different	Works with any MCP client, not locked to one AI platform No installation required; works on macOS, Windows and Linux Access unlimited email accounts simultaneously in one connection Send emails with opt-in permission and approval workflow	Files encrypted on sender's device before upload Automatic permanent destruction after one download No recovery possible by design Repeated wrong password attempts destroy the transfer
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)	13 +1 (up) since last check	Not checked yet no change since last check
Trust Flow (Majestic)	8	0
Citation Flow (Majestic)	22	0
Referring domains (Majestic)	17	0

5 details filled in for both companies.

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