Seventh Sense

Name: Seventh Sense
Price: 64 USD
Author: Seventh Sense

★4.0/ 5

by Seventh Sense

Editorial review

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AI email optimisation agent that sends to each contact at their peak engagement time using send-time prediction. HubSpot/Marketo integration. Custom pricing — typically $15K-$60K+/year for B2B teams.

Seventh Sense is an AI email delivery optimisation system built exclusively for HubSpot and Marketo users. It does not write emails or manage sequences -- instead, it analyses each contact in your database individually and determines the optimal send time and frequency to maximise engagement for that specific person. The AI builds a behavioural profile for each contact based on historical open and click patterns, then staggers email delivery throughout the day to hit each recipient at their personal peak engagement window. Teams using Seventh Sense report open rate improvements from the 4-5% range to 18-37% -- the lift comes from timing precision rather than content changes. Pricing starts at $80/month for HubSpot Business (5,000 contacts), scaling with database size. Enterprise plans for 150K+ contacts are custom. HubSpot and Marketo are the only supported platforms -- this is a deliberate focus, not a limitation of roadmap. Teams not on HubSpot or Marketo cannot use the product.

Pricing

subscription · $64

Segment

b2b

Setup

easy

Verified

May 8, 2026

Capabilities

email-optimisationpersonalisationcampaign-automationdata-analysisreporting

Pros & Limitations

Editorial assessment

Pros

✓Individual send-time personalisation at the contact level -- delivers each email at the precise engagement window for that specific recipient rather than a single blast time for the entire list
✓Documented open rate lift from 4-5% to 18-37% in customer case studies -- one of the most consistently measurable ROI improvements in email marketing tooling
✓Deep HubSpot and Marketo integration with no migration required -- installs on top of your existing setup and inherits your existing workflows and reporting

Limitations

⚠HubSpot and Marketo only -- teams on Salesforce Marketing Cloud, Mailchimp, Klaviyo, or any other ESP cannot use Seventh Sense regardless of database size or budget
⚠Optimises timing only -- does not improve email content, subject lines, or list quality; if your emails are poorly written or your list is stale, Seventh Sense will not fix underlying engagement problems
⚠Pricing scales with contact database size -- teams with large lists can face significant cost increases as their database grows, with Enterprise pricing becoming opaque above 150K contacts

Technical Details

Deployment

web

Model architectureProprietary

Avg setup time5 minutes to connect HubSpot or Marketo. Optimal send times generated within 24 hours of first data sync.

Autonomous rateSend time optimisation runs fully autonomously -- AI schedules every email to each contact at their individually predicted peak engagement time without manual input per send.

Integrations

HubSpotMarketo

Security

GDPR