Cirrus Insight vs Mailshake (2026)
Decide whether the problem is keeping Salesforce accurate or running a new outbound engagement process. Cirrus Insight captures Gmail and Outlook activity into Salesforce, adds an inbox sidebar and scheduling, and queues AI suggested CRM changes for human confirmation. Mailshake organizes email, calls, social tasks and engaged replies in a sales workspace. These are adjacent choices, with a useful difference at exit: Cirrus Insight commits to a return and deletion process after termination while synchronized activity already sits in Salesforce. Mailshake's CRM connection also preserves activity, but the complete workspace return path is less definite. Both leave the treatment of all AI inputs broader than their Google data commitments unclear. Salesforce teams reducing administrative work around existing conversations will get that from Cirrus Insight. Representatives building new conversations from a list, and turning responses into assigned sales work across channels, will get that from Mailshake.
- Salesforce activity capture is the main problem.
- Reps need CRM records inside Gmail or Outlook.
- Human confirmation of proposed CRM changes is useful.
- Outbound campaigns and reply work are the main problem.
- Calling and social tasks belong beside email.
- Lead Catcher will organize engaged prospects.
This comparison is published by GTM Tech Index, an independent research platform that compares go to market software vendors objectively. Cirrus Insight and Mailshake are each graded against the same capability taxonomy, from each vendor's own public materials, under the GTM Tech Index verification standard. No vendor pays for placement, and no vendor has reviewed this page. How this evidence is graded
Plain facts
| Cirrus Insight | Mailshake | |
|---|---|---|
| Primary category | Revenue Intelligence & Forecasting | Sales Engagement & Outreach |
| Founded | 2011 | 2017 |
| Headquarters | Raleigh, NC, US | Not published |
| Website | www.cirrusinsight.com | mailshake.com |
Side by Side
| Axis | C Cirrus Insight |
M Mailshake |
|---|---|---|
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AI Capability
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| AI Centrality | ||
| Autonomy and Oversight Model | ||
| AI Disclosure and Model Transparency | ||
| Operational and Outcome Evidence | ||
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Compliance and Risk
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| Outreach Compliance Posture | ||
| Data Privacy Posture | ||
| Data Licensing and Provenance | ||
| Platform Terms Exposure | ||
| AI Safety and Data Stewardship | ||
| Recipient Disclosure and Authenticity | ||
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Integration and Deployment
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| Ecosystem and Integration Depth | ||
| Deployment Model and Data Residency | ||
| Security Certifications and Trust Center | ||
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Commercial and Operational
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| Commercial Transparency | ||
| Exit and Data Portability | ||
| Deliverability and Sending Discipline | ||
| Segment and Market Coverage | ||
The short version of each
Cirrus Insight
Cirrus Insight keeps Salesforce accurate around conversations a team is already having, while Mailshake starts new ones. It captures Gmail and Outlook activity into Salesforce, and its inbox sidebar shows records, schedules meetings, sends email broadcasts and tracks attachments. Meeting AI prepares research before a call, and CRM AI queues proposed opportunity updates that a person confirms before they change Salesforce. No contact database is sold; the product works from the customer's mailboxes, calendars and CRM. On the GTM Tech Index, Cirrus Insight is the Salesforce productivity tool of this pair. Administrators control what is captured and how long it is kept.
Source: GTM Tech Index, 2026
Mailshake
Mailshake builds new conversations from a list and turns the responses into assigned sales work, a different job from Cirrus Insight's Salesforce housekeeping. Sequences run through the buyer's connected mailboxes, with calling and social touches on the top tier. Lead Catcher gathers prospects who replied or engaged so a representative can take the next step. The writing assistant drafts and tests copy, and CRM synchronization in both directions records the activity. In GTM Tech Index terms, Mailshake is the outbound engagement option here. Data Finder supplies new contacts through a separate credit subscription.
Source: GTM Tech Index, 2026
Common questions
Is Cirrus Insight a direct replacement for Mailshake?
Only for a narrower set of email and scheduling needs. Its center is Salesforce activity and productivity, while Mailshake centers on outbound engagement and reply work. Graded by GTM Tech Index against seventeen capability axes from each vendor's own published materials, verified October 12, 2026. No vendor pays for placement.
What is Cirrus Insight's exit commitment?
It maintains client data for up to 90 days after termination unless return is requested, then deletes production data while retaining legally required operational records. Synchronized Salesforce activity already exists outside Cirrus Insight. Graded by GTM Tech Index against seventeen capability axes from each vendor's own published materials, verified October 12, 2026. No vendor pays for placement.
How are Cirrus Insight and Mailshake bought?
Cirrus Insight sells per user packages with separately priced additions and a custom purchase path for larger deployments. Mailshake sells engagement seats, with calling and social steps depending on the package and Data Finder contact credits as a separate subscription. Graded by GTM Tech Index against seventeen capability axes from each vendor's own published materials, verified October 12, 2026. No vendor pays for placement.
Does either write to Salesforce without a person checking?
Cirrus Insight captures email and calendar activity automatically, but its CRM AI queues opportunity changes for a person to confirm before Salesforce is updated. Mailshake's native CRM synchronization records campaign activity in the CRM. Graded by GTM Tech Index against seventeen capability axes from each vendor's own published materials, verified October 12, 2026. No vendor pays for placement.
Related comparisons
Other published head to head assessments involving these vendors or their closest peers. The full set for this category is on the Sales Engagement & Outreach page.
Cirrus Insight captures mailbox activity and can analyze meetings; Mailshake adds outbound channels. Recording notice, tracking and permitted outreach depend on the customer's configuration and use.