Seventh Sense
AI-powered email send-time optimization and audience management platform built exclusively for HubSpot and Marketo users.
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✓ Free plan available
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Seventh Sense uses AI to optimize email deliverability, send timing, and audience engagement for HubSpot and Marketo customers. It surfaces per-inbox-provider analytics, enforces frequency caps, and automatically suppresses disengaged contacts to protect domain reputation. Operating natively inside HubSpot workflows and Marketo programs, it aims to improve inbox placement and reduce audience fatigue without replacing the core marketing platform.
Best for: B2B marketing operations teams running HubSpot or Marketo who want deeper email deliverability insights and AI-driven send-time personalization
Key Features
- AI send-time personalization per individual recipient
- Per-inbox-provider performance reporting (Gmail, Google Workspace, Office 365, Yahoo, etc.)
- Cross-campaign frequency caps and blackout windows
- Audience recycling and automated re-engagement suppression
- Executive dashboard with influence score and audience health metrics
- Domain and IP reputation monitoring
- Per-person engagement profiles
- Native HubSpot workflow and Marketo program integration
- SOC 2 Type II certified
Pros
- Deep per-inbox-provider analytics not available natively in HubSpot or Marketo
- 10+ years of specialization (since 2014) means mature, battle-tested AI models
- Automated audience suppression protects sender reputation without manual intervention
- Native integration means no complex middleware or custom API work
- Free tier lets teams evaluate with real or synthetic data before committing
Cons
- Exclusively limited to HubSpot and Marketo — zero value for teams on Salesforce Marketing Cloud, ActiveCampaign, Klaviyo, or any other ESP
- Pricing can become significant for large contact lists, and full feature access typically requires paid plans
- Does not replace or improve email content quality — purely an orchestration and deliverability layer
- Inbox placement insights are inference-based (no seed lists, no direct ISP data), so accuracy has inherent limits
- Smaller, niche vendor compared to enterprise deliverability suites like Validity or 250ok, which may concern procurement teams
Pricing Details
| Pricing type | Freemium |
| Starting at | Free |
| Free plan | ✅ Available |
Plan Breakdown
Free
$0/mo
HubSpot
Custom
Marketo
Custom
See Current Pricing →
Pricing may change — always verify on the official site.
- B2B marketing ops teams struggling with email fatigue and declining engagement rates in HubSpot or Marketo
- Demand generation teams managing large nurture programs who need cross-campaign frequency control
- Email deliverability managers who want granular per-inbox-provider performance data and reputation monitoring
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See how Seventh Sense compares side-by-side with similar tools
Seventh Sense Current |
Sparkloop
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Postmark
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Semrush
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|---|---|---|---|---|
| Rating | ★★★★☆ 4.1 | ★★★★½ 4.6 | ★★★★½ 4.4 | ★★★★½ 4.3 |
| Trust Score | 64/100 | 86/100 | 82/100 | 87/100 |
| Pricing |
Free
$0/mo
HubSpot
Custom
Marketo
Custom | Freemium Free |
Starter (10k emails/mo)
$15/mo
Business (50k emails/mo)
$55/mo
Business (100k emails/mo)
$95/mo
Enterprise
Custom |
Free
$0/mo
Pro
$139.95/mo
Guru
$249.95/mo
Business
$499.95/mo |
| Data updated | 2 days ago | 6 days ago | 2 days ago | 3 days ago |
| Try → | Compare → | Compare → | Compare → |
About Trust Score
Trust Score = (Rating / 5 × 60) + (Popularity / 100 × 40). A score of 100 means the tool has a perfect rating and maximum market popularity. Scores are updated automatically by our AI agent.
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