Two established cold email tools with different priorities. Here's where they actually differ — pricing, deliverability accuracy, and what to consider for your agency.
Try OutboundHQ free →Feature Comparison
Verified against public documentation and product testing as of May 2026.
| Feature | OutboundHQ | Woodpecker |
|---|---|---|
Free plan No credit card required |
✓ | ✗ |
Bot open detection Filters scanner IPs, AWS ranges, rapid-fire opens |
✓ | ✗ |
Real-time delivery webhooks Per-email delivery, bounce, click events via Postmark |
✓ | Basic |
Per-slot pricing Charges per mailbox/slot rather than per email volume |
✗ | ✓ |
Multi-step sequences Automated follow-ups with custom delays |
✓ | ✓ |
Condition-based follow-ups Follow-up logic based on recipient behavior |
✓ | ✓ |
Per-domain deliverability analytics Bounce, open, spam rates broken down by domain |
✓ | Basic |
Reply detection & categorization Auto-detects replies, classifies as positive/negative |
✓ | Partial |
Client campaign separation Separate workspace/views per agency client |
Roadmap | ✓ |
Unsubscribe compliance One-click unsubscribe, suppression list |
✓ | ✓ |
API access Programmatic campaign creation and management |
✓ | ✓ |
Pricing
Woodpecker's per-slot model compounds fast as you add mailboxes. OutboundHQ is free to start and doesn't charge per mailbox or per seat.
Why It Matters
Woodpecker has been a reliable tool since 2015. But its open rate data includes email security scanners — the same issue that affects every cold email platform that doesn't filter bots. OutboundHQ solves this.
OutboundHQ filters AWS IPs, known scanners, and rapid-fire opens. Your open rates reflect real humans, not inbox security tools that open emails automatically.
Postmark webhooks give you per-email delivery confirmation, bounce classification, and spam complaint alerts the moment they happen — not in a 24-hour batch report.
See bounce and spam rates by domain — Gmail, Outlook, custom domains. Know exactly where your reputation is weakest before it becomes a campaign-killing problem.
Why People Switch
Woodpecker's per-slot pricing is $49+/month before you add a second mailbox. OutboundHQ's free tier lets you validate the tool before spending a dollar. For agencies managing multiple client accounts, the economics are significantly better here.
If you report engagement rates to clients, you need numbers you can defend. Woodpecker's open rates include security scanners — you can't know what percentage is real without bot detection. OutboundHQ gives you defensible data.
Switching from Woodpecker is straightforward: export your contacts as CSV, import them into OutboundHQ, and re-create your sequences. The migration typically takes under 30 minutes. You also get access to our DKIM setup guide for proper email authentication.
FAQ
Free to start. No credit card. Bot detection, sequences, and real-time delivery webhooks included.
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