We tested the top AI-powered sales engagement platforms. 

Only one turned leads into booked meetings on autopilot.

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Why we ran the Warmly teardown

Warmly makes a modern promise: identify website visitors, surface enriched firmographic and intent data, and help reps send personalized messages while a prospect is still on-site. It’s an appealing offer in a sales world overrun by anonymous clicks, shallow enrichment, and slow rep response times.

But beneath the intent overlays and automated popups lies a deeper question: does Warmly act on those signals? Or does it just tell your team where to look?

Because recognizing interest isn't the same as converting it.

So we ran a teardown of the most talked-about Warmly alternatives, including 11x, Conversica, SDRx, Agent Frank, and 6Sense to answer a tougher question:

Which platform executes?

Who detects leads and qualifies them, contacts them, and puts meetings on the calendar, without human chasing, copywriting, or scheduling?

Platforms We Tested

• 11x (Alice + Julian): Autonomous Digital Workers that drive full-funnel pipeline execution across inbound and outbound.
• Warmly: Website visitor identification and real-time personalization overlays for sales teams.
• Conversica: AI-driven conversation agents for marketing and sales follow-up.
• SDRx: AI SDR platform with cold email automation, plus calling agent.
• 6Sense: Predictive intent engine with orchestration for enterprise revenue teams.
• Agent Frank: AI prospecting assistant for finding leads, personalizing messages, and booking meetings.

What We Measured

• Speed-to-action: Can the system respond immediately to form fills, surging intent, or ICP matches?
• Multichannel fluency: Does it natively handle email, voice, WhatsApp, and SMS?
• Pipeline output: Can it convert signals into qualified meetings, not just enrich data or trigger alerts?
• Setup drag: How long does it take to go live? Are workflows and playbooks required?
• Maintenance load: Does it adapt and self-optimize or require constant human input?
• Security readiness: Can it meet enterprise compliance and CRM syncing needs out of the box?

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11x didn’t just alert us. It worked.

Where others unified dashboards, 11x deployed doers.

Inside a week with Alice & Julian (11x)

Day 0 deployment

• 14:00: Uploaded 12,000-row CSV of inbound and outbound leads
• 14:02: Alice deduped, enriched, and flagged ICP matches across 17 intent layers
• 14:04: Domain health, SPF, and DKIM checks began
• 14:06: First batch of hyper-personalized outreach hit inboxes, and SMS. No sequences needed.

Real-time inbound response

• 03:17: A VP Revenue at an ICP account submitted a demo form
• 03:17:17: Julian called, handled objections, confirmed fit, and booked the meeting
• 03:18: CRM logged, Slack alerted, calendar invite sent

Adaptive sequencing

• Email engagement dropped on Day 3; Alice pivoted messaging to WhatsApp
• Detected funding news and rewrote sequence pitch mid-flight
• Booked a new meeting with a prospect marked "cold" the week before

11x didn’t ask us to pick a template or load a cadence.

It just executed.

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Where the others fell short

Warmly

• Executes basic email sequences but lacks phone/SMS and self-optimising routing.
• Mostly email: no native voice/SMS.
• Manual handoff: Reps still have to message, qualify, and book

Conversica

• Rigid logic: Pre-scripted flows often fail to handle nuanced conversations
• Covers email, SMS & chat; voice still early; flows can feel rigid.
• Enterprise complexity: Integrates best with MAP/CRM; setup heavier than point tools.

SDRx

• Limited inbound: Strong inbound phone agent; gaps in live chat & WhatsApp
• Human glue needed: Users still build cadences and monitor replies
• Has CRM sync, but routing rules still require admin setup.

6Sense

• Stops at insights: Strong prediction engine, but no execution layer
• No contact: Doesn’t send messages, just tells you who to contact
• Heavy setup: Better suited for ABM analytics than GTM action

Agent Frank

• Basic automation: Good for sending personalized emails, but lacks deeper signal detection or conversation handling
• No true autonomy: Humans still approve or oversee workflows
• No phone/SMS support: Not built for full-cycle multichannel outreach

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Runner-Up Reviews (Strengths & Gaps)

2. Conversica

Strengths

• Natural-sounding emails
• Integrated AI calling agent for inbound
• Tailored for large sales orgs with MAP + CRM

Gaps

• Limited flexibility in flow logic
• Can’t pivot channels or rewrite on the fly
• Weak multichannel orchestration

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3. SDRx

Strengths

• Done-for-you cold outreach across email
• Built-in domain warmup and subdomain rotation
• Inbound calling agent available

Gaps

• No autonomous CRM routing or calendar booking
• Requires human-created cadences
• Light on personalization and real-time adaptations

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4. 6Sense

Strengths

• Best-in-class predictive modeling
• Deep data filters and firmographic insights
• Powerful orchestration for large GTM teams

Gaps

• Doesn’t contact prospects
• No reply handling or meeting scheduling
• High cost and complexity

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5. Agent Frank

Strengths

• Finds leads, personalizes emails, and books meetings with minimal lift.
• Auto-Pilot and Co-Pilot options let teams toggle between hands-off execution and human oversight.
• Pushes replies into Slack for fast AE pickup and collaboration.
• Entry-level pricing makes it accessible for scrappy teams.
• Solid for basic use cases and quick-start outreach.

Gaps

• No support for voice, SMS, or WhatsApp.
• Needs workarounds for clean lead routing and activity logging.
• Can’t manage nuanced objections or deep qualification logic.
• More complex workflows require technical tuning.
• Doesn’t adjust messaging based on signal changes or reply trends.

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Why 11x isn’t just different. It’s better.

• Truly autonomous: Alice and Julian don’t just detect signals. They act on them. No playbooks. No babysitting. From the moment data is uploaded or a form is filled, they respond across channels, qualify, route, and book.
• Multilingual and multichannel: Email. Voice. SMS. WhatsApp. In over 105 languages. Fully natively.
• Zero setup drag: Gone are the weeks of onboarding. Upload a list or plug in a form. Done.
• CRM-native: Bi-directional sync with Salesforce and HubSpot. No data lost. No manual routing.
• Outcome-priced: No seat licenses. No message limits. Just meetings booked.

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Stop analyzing visitors. Start closing them.

Warmly and friends tell you who to message.
11x just messages them. Qualifies them. Books them.

If you want more dashboards and overlays, stick with what you’ve got.

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Want a qualified pipeline with no lift? Hire Alice and Julian.

Book your 11x demo today. No slides. No sandboxes. Just real meetings, booked autonomously.

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