Apollo.io vs Sybill: Which AI agent is better?
Compare pricing, AI models, integrations, security posture, pros, cons, and buyer fit before choosing the right AI sales / crm agent for your workflow.
Verdict: Apollo.io vs Sybill
Pick Apollo.io if you need b2b prospecting with massive contact database. Pick Sybill if you need sales assistant for call intelligence and automatic crm updates.
Sybill wins on price.
Sybill integrates with 7 platforms.
Apollo.io
Apollo.io provides access to over 275 million contacts and 73 million companies, making it one of the largest B2B prospecting databases available with extensive coverage across industries and geograph...
- 275M+ contacts and 73M+ companies database
- AI-powered lead scoring with conversion prediction
- Multi-channel sequences: email, LinkedIn, phone
- AI email writer with personalization from prospect data
- Intent signals identifying active buyers
- Massive contact database reduces manual prospecting
- Intent signals provide perfect outreach timing
- Free tier offers substantial value for small teams
- Data accuracy varies across database segments
- Email credits can run out quickly on lower tiers
Sybill
Sybill is an AI sales assistant that sits in every sales call and automatically generates accurate call summaries, identifies deal risks, surfaces key insights, and updates the CRM—eliminating the pos...
- Magic summaries capturing discussion, objections, and next steps
- Behavior AI analyzing non-verbal engagement cues in video calls
- Automatic CRM updates for deal stage, MEDDIC, BANT, and custom fields
- Deal health tracking across multiple calls with at-risk alerts
- Coaching module with best-moment collections for rep training
- Behavior AI captures engagement signals that transcription-only tools miss
- Automatic CRM updates eliminate hours of post-call data entry per rep per week
- Coaching moment collections accelerate new rep ramp time significantly
- Behavior AI requires video calls—audio-only meetings provide limited insights
- CRM auto-fill accuracy requires validation workflow until team builds confidence
Who should buy this
Apollo.io
- SDR or BDR running outbound at scale needing contact + email + sequences in one tool
- Small startup wanting Apollo's 275M+ contact database without ZoomInfo's enterprise contract
- RevOps team consolidating prospecting + dialer + email + CRM enrichment
- Buyers needing only contact data (cheaper to use Apollo's data via API at Organization tier)
- Enterprises needing strict GDPR data residency (US-hosted only)
Free Starter forever (limited credits). Solo SDR: ~$59/seat/mo Basic. Pro SDR with intent signals: $79/seat/mo. Mid-market: $119/seat/mo Organization (min 3 seats, API access).
Verified 2026-05-03
Sybill
- Sales managers wanting transcription + behavior signals + CRM auto-update in one tool
- Mid-market sales org using Zoom-heavy outbound calls + demos
- Scale-up startups looking for Gong-style insights at fraction of the cost
- Audio-only call orgs (Behavior AI requires video)
- Enterprise looking for the deepest forecast / pipeline analytics (Gong leads)
Solo / small team: $19/seat Essentials. Mid-market w/ Behavior AI + coaching: $79/seat Business. Enterprise: custom annual.
Verified 2026-05-03
Capabilities at a glance
| Capability | Apollo.io | Sybill |
|---|---|---|
| 275M+ contact database | Largest in the category | — |
| Email sequences + dialer | — | |
| Buying intent signals | Professional+ | — |
| Public API | Organization tier | |
| CRM bidirectional sync (Salesforce, HubSpot) | — | |
| On-prem / self-hosted | — | |
| Auto-transcription + summary | — | |
| Behavior AI (engagement signals) | — | Business+ |
| Auto CRM sync (Salesforce, HubSpot) | — | |
| Coaching moment collections | — |
Security & compliance
| Standard / control | Apollo.io | Sybill |
|---|---|---|
| SOC 2 | Type II | Type II |
| GDPR | ||
| SSO / SAML | ||
| RBAC | ||
| Audit logs |
What users say
Frequently asked questions
Which is cheaper, Apollo.io or Sybill?+
Apollo.io's Basic plan is $49/user/month and Sybill's Essentials plan is $19/user/month. Sybill is the cheaper entry point.
What AI models do Apollo.io and Sybill use?+
Apollo.io runs on Apollo AI, ML-based lead scoring, NLP for email generation. Sybill runs on GPT-4o, Proprietary behavior AI, Custom audio-video analysis models.
What is the main difference between Apollo.io and Sybill?+
Apollo.io is positioned as best for b2b prospecting with massive contact database, while Sybill is positioned as best ai sales assistant for call intelligence and automatic crm updates. Pick the one whose strength aligns with your primary use case.
Which has better integrations, Apollo.io or Sybill?+
Apollo.io integrates with Salesforce, HubSpot, LinkedIn, Gmail and 2 more. Sybill integrates with Salesforce, HubSpot, Zoom, Google Meet and 3 more.
What are the main weaknesses of Apollo.io and Sybill?+
Apollo.io's main drawback: data accuracy varies across database segments. Sybill's main drawback: behavior ai requires video calls—audio-only meetings provide limited insights.
Are Apollo.io and Sybill worth it in 2026?+
Both remain competitive sales / crm options in 2026. Apollo.io stands out for massive contact database reduces manual prospecting. Sybill stands out for behavior ai captures engagement signals that transcription-only tools miss. Choose based on which trade-offs fit your workflow and budget.