CallSine

5.3easy start · #66of 69
in Sales Engagement Software

Free to practise onno
Free trialno
Well documentedno
Runs where you workno

Runs on Web. Paid plans from $349/mo.

CallSine is ranked #66 of 69 in sales engagement software on The Geeks Club. It runs on Web. There is no free plan. Paid plans start at $349/mo.

CallSine plans and pricing

All plans

Pilot Agent $349/mo $349/mo 1 campaign agent · 1 email inbox · LinkedIn outreach · Up to 20 net new contacts per day · 14-day analytics history · Core AI content strategies callsine.com · 11 Oct 2026

Full Time $999/mo $999/mo 2 campaign agents, expandable · Up to 10 inboxes · LinkedIn outreach · Up to 200 net new contacts per day, no total cap · All-time analytics · Expanded content strategies + pre-launch testing · Team collaboration callsine.com · 11 Oct 2026

Custom Custom Custom number of campaign agents · Up to 100 inboxes · LinkedIn outreach · Unlimited net new contacts · All-time analytics · Full content strategies + pre-launch testing · Coordinated agent workflows · Team collaboration · Data integrations callsine.com · 11 Oct 2026

Compared on sales engagement software

Free plan: No
Sequence channels: email+call+social
CRM synchronization: Yes
Included mailboxes: 1 mailboxes

Best CallSine alternatives

See all 20

Ring.io Lesson 17.9 Zoho CRM Lesson 27.9 Mixmax Lesson 37.7 Salesforce Sales Cloud Lesson 47.5 Yesware Lesson 57.5 ZoomInfo Lesson 67.5

The record

Product: CallSine describes itself as an agent-powered contextual outreach platform that researches prospects and deploys outreach automatically.
Audience: CallSine says its agents help sales teams send personalized messages at scale and keep opportunities from slipping through the cracks.
Research: Its AI agent researches leads using LinkedIn, websites, and technographic data to understand their context, role, and industry.
Personalized messaging: Generation uses sales materials such as case studies, pitch decks, and product pages to create prospect-specific outbound messages.
Grounding: CallSine says its Retrieval-Augmented Generation uses information users give it access to when creating messages.
Channels: The product pages describe outreach across email, LinkedIn, phone, and SMS.
Sequencing: Its sales engagement system creates dynamic cadences that adapt to lead behavior, timing rules, or response status.
Contact sourcing: CallSine says its agents filter prospects by firmographics, roles, and context and include verified phone and email data.
Email infrastructure: CallSine says it can manage inbox creation, routing, warmup, and monitoring for outbound email.
Integrations: The pricing page lists data integrations as a feature of the Custom plan; it does not name specific integration partners.
Trust: The company links to a Vanta Trust Center from its pricing page.
Support and sales: The pricing page directs prospective customers to book a demo for each listed plan.
Price from: $349/mo

Where it ranks on The Geeks Club

Best Sales Engagement Software in 2026#66 of 69

Is CallSine yours?

Claim it for free: prove the domain, then correct facts, plans and screenshots. An editor reviews every change.

Claim it free Promote CallSine

Sources

callsine.com· checked 11 Oct 2026
callsine.com/about· checked 11 Oct 2026
callsine.com/product/ai-agent· checked 11 Oct 2026
callsine.com/product/generation· checked 11 Oct 2026
callsine.com/product/sales-engagement· checked 11 Oct 2026
callsine.com/product/contacts· checked 11 Oct 2026
callsine.com/product/infrastructure· checked 11 Oct 2026
callsine.com/pricing· checked 11 Oct 2026