Sickle vs CogniCore
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 CogniCore
| Detail | 
Sickle | 
CogniCore |
|---|
| What it does | Email MCP server for Claude, Cursor and other AI agents to access every mailbox you own
| Memory that follows you between AI apps
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| Stage | Not given
| Not given
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| Founded | Not given
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| Based in | GB
| Not given
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| Pricing model | Free trial
| Open source
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| 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.
| Not given
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| 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
| - Connect to Claude via custom connector in Settings
- Add to ChatGPT with developer mode
- Automatic session save for Claude Code and Codex
- Save and resume sessions with brief summaries
- GitHub sign-in for private separate memory
- Delete individual memories or all data by email
- Zero model calls to save a session
- Session brief generated in ~450 tokens
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| 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
| - Shared memory across multiple AI apps and agents, not confined to one app
- Setup in about one minute with no credit card or waitlist
- Open source code so users can verify data handling
- No data selling, ads or use for AI model training
- Private per-account database with no cross-account access
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| Free plan | Not given
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| Open source | Not given
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| Platforms | Not given
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| Public API | Not given
| Not given
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| Community votes | 0 | 0 |
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| DR (Domain Rating by Ahrefs) | 13 ▲ +1 (up) since last check | Not checked yet ● no change since last check |
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| Trust Flow (Majestic) | 8 | 1 |
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| Citation Flow (Majestic) | 22 | 10 |
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| Referring domains (Majestic) | 17 | 12 |
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4 details filled in for both companies.
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