O
O11x.ai vs Apollo.io
Pricing, features, platforms and who each one suits — side by side.
1
Choose 11x.ai if…
- you work on Slack
- you're in its core audience: b2b sales teams, sdrs and bdrs
A
Choose Apollo.io if…
- you want a free plan to start with
- you work on Chrome
- you're in its core audience: sales development reps, account executives
Side by side
Feature 11x.ai Apollo.io
Pricing modelContact for pricingFreemium
Starting price——
Free plan
Free trial
API
Open source
Trains AI on your content—Yes
Data retentionKept as long as potentially useful or legally needed, then securely deleted—
Security and complianceSOC 2 Type II, GDPR, CCPASOC 2 Type II, ISO 27001, GDPR, CCPA
Outreach sequences
Contact database—
Built-in dialer—
MCP server—
PlatformsWeb, API, SlackWeb, Chrome, API
CategorySales Assistants & CRMLead Generation
Company11x AI Inc.ZenLeads, Inc. d/b/a Apollo.io
Based inUnited StatesUnited States
Founded—2015
Part of——
Key features
1 11x.ai
- AI voice agents for inbound calls, callbacks and upsells
- Chat agents that qualify website visitors without forms
- Multi-channel sequences across email, social, SMS and WhatsApp
- Deep prospect research and AI-personalized outreach
- Real-time company and lead database
- Website visitor de-anonymization and tracking
- Intelligent lead routing and automated meeting booking
- CRM integrations with HubSpot, Salesforce and Pipedrive
A Apollo.io
- B2B database of 240M+ contacts and 30M+ accounts
- AI agents that research accounts and prioritize leads
- Email sequencing and outreach automation
- Parallel dialer for phone prospecting
- Waterfall enrichment for more complete records
- Domain warming, inbox rotation and reputation monitoring
- Chrome extension for finding emails and phone numbers
- 200+ integrations, plus an MCP server
Plans and prices
From each vendor's site. Prices change — confirm before buying.
11x.ai
Contact for pricing. Plan details aren't published.
Apollo.io
FreeFree
BasicNot published
ProfessionalNot published
CustomCustom
Strengths and limitations
11x.ai
- Covers inbound, outbound and expansion in one platform
- Supports voice, chat, email, social, SMS and WhatsApp
- Integrates with HubSpot, Salesforce, Pipedrive, Slack and G2
- Deliverability is managed in-house across channels
- No public pricing; access is through a sales demo
- No free plan or trial listed
Apollo.io
- Free plan with no time limit
- Large built-in B2B contact database
- Works inside your CRM, Gmail and browser
- Monthly billing can be cancelled anytime
- Plan prices are not shown on the pricing page
- API access is listed only on the Custom plan
- Free plan sends email campaigns only through connected Gmail accounts
- Unused credits expire at the end of each billing cycle
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Built from each vendor's public website; we haven't tested them hands-on. Editorial policy