| What it does | Cold email platform with built-in warmup, inbox rotation, and deliverability monitoring
| Cold email that knows when to stop, slow down, follow up, switch inboxes and back off
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| Stage | Not given
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| Founded | Not given
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| Based in | Not given
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| Pricing model | Freemium
| Freemium
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| Pricing | Free plan: 200 contacts, 500 emails/month, 25 Fenn AI credits/month, unlimited email accounts, 2 warmed inboxes. Starter: $27/month billed annually ($34/month monthly), 5,000 contacts, 10,000 emails/month, 2,500 Fenn AI credits/month. Growth: $71/month billed annually ($89/month monthly), 50,000 con
| Trial: Free for 7 days (1 connected mailbox, 600 email sends/month, 200 contacts, 1 team member). Starter: $29/month (unlimited connected mailboxes, 7,500 email sends/month, 2,000 contacts, 1 team member). Growth: $39/month (unlimited connected mailboxes, 40,000 email sends/month, 15,000 contacts, 3
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| Key features | - Connect unlimited email accounts (Growth tier and above)
- Inbox rotation and email pacing across accounts
- Deliverability monitoring with domain and inbox health
- CSV contact import with automatic column mapping
- Multi-step sequences with A/B testing
- Unified inbox with AI reply sorting
- Fenn AI co-pilot for campaign building and monitoring
- API, MCP server, SDKs, CLI and webhooks for developers
- Team workspaces and multiple team members
| - Automated multi-step email sequences with configurable wait days
- Self-balancing sender rotation across multiple connected mailboxes
- Automatic reply detection to stop follow-ups when prospects respond
- Pre-launch validation checks for contacts, senders and quotas
- Campaign analytics tracking sent, replies, bounces, opens, clicks and unsubscribes
- Safe Mode ramp-up for gradual mailbox warm-up over ten days
- Hard bounce and unsubscribe suppression across entire workspace
- Support for Gmail, Outlook and custom SMTP connections
- AI-assisted email drafting for openers and follow-ups
- CSV contact import with format, duplicate and field validation
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| What makes it different | - One-time payment for lifetime access with no monthly bills or annual renewals
- All-in-one platform combining warmup, sequences, deliverability and AI in one tool
- Built by founders who run their own cold email campaigns
- 30-day money-back guarantee on all purchases
- Automatic monthly limits reset and all future plan updates included
| - No per-mailbox fees on paid plans, only charges for sends and contacts
- Automatic guardrails that pause campaigns when bounce rates exceed threshold or providers throttle
- Honest about deliverability with no guarantees, emphasizing user control and visibility
- Unified workspace managing sequences, rotation, contacts and analytics without unnecessary complexity
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| Community votes | 0 | 0 |
| DR (Domain Rating by Ahrefs) | 27 ▲ +1 (up) since last check | Not checked yet ● no change since last check |
| Trust Flow (Majestic) | 8 | 0 |
| Citation Flow (Majestic) | 29 | 18 |
| Referring domains (Majestic) | 50 | 2 |