Apollo.io vs Instantly.ai vs lemlist (2026)
Three-way comparison of Apollo.io vs Instantly.ai vs lemlist: pricing, capabilities, integrations, deployment complexity, and ratings. Last updated September 24, 2026 by The AI Agent Index Editorial Team.
Data sourced from The AI Agent Index
Apollo.io, Instantly.ai and lemlist all run automated outbound sequences, but each is built around a different core. Apollo.io is a sales intelligence platform: a 240M+ contact database, email sequencing, a built-in dialer and CRM sync, with a permanently free plan and paid seats from $49/mo billed annually. It holds 9,841 G2 reviews at 4.7/5. Instantly.ai is cold email infrastructure: unlimited sending accounts and automated warmup on every plan, and an AI Reply Agent that classifies replies by intent and triggers the matching follow-up. Sending starts at $37.60/mo billed annually, and its 450M+ lead database is a separate Instantly Credits subscription. It holds 4,157 G2 reviews at 4.8/5. lemlist is a multichannel sequencer with AI personalization. Its Email plan starts at $55/mo billed annually for unlimited users and includes a 650M+ lead database, with verified contact data sold as a separate Data plan, while LinkedIn, calling, SMS and WhatsApp steps are on the per-user Multichannel plan. It holds 2,335 G2 reviews at 4.6/5 and publishes a SOC 2 Type II report. Teams that want data, sequencing and calling in one seat-based subscription should look at Apollo.io. Teams that already have lists and need to send cold email at volume across many inboxes should look at Instantly.ai. Teams that want LinkedIn and phone steps alongside email in one sequence should look at lemlist. All three publish an MCP server, so each can be driven from AI assistants such as Claude.
Apollo.io
by Apollo
B2B sales intelligence with 240M+ contacts, AI sequencing, and autonomous outreach. Free plan, with paid tiers from $49/user/mo billed annually or $65 monthly. Over 600,000 companies.
Best for
B2B sales teams that want contact data, email sequencing, calling and CRM sync in one platform, with a free plan and paid seats from $49/mo billed annually
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Instantly.ai
by Instantly
Cold email infrastructure with unlimited sending accounts, automated warmup, AI reply classification, and an official MCP server. Outreach from $37.60/mo annual, or $47 monthly.
Best for
Agencies and outbound teams sending high volumes of cold email across many inboxes, with sending from $37.60/mo billed annually and the lead database sold as a separate credits subscription
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lemlist
by lemlist
Multichannel outreach across email, LinkedIn, calling, SMS, and WhatsApp with AI personalization. Email $55/mo annual for unlimited users, Multichannel $87/user/mo. SOC 2 Type II.
Best for
Teams running multichannel sequences across email, LinkedIn, calling, SMS and WhatsApp, with the Email plan from $55/mo billed annually for unlimited users and multichannel steps on the per-user Multichannel plan
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Capabilities
Apollo.io
Instantly.ai
lemlist
Pros & Limitations
Editorial assessmentApollo.io
Pros
- ✓240M+ verified contacts and 30M+ companies with filters for funding stage, technographics, hiring signals, intent data, job change alerts, and AI-powered Lookalikes (BETA), all without a separate data provider.
- ✓Autonomous sequence execution runs outreach end-to-end once configured: Apollo sends, waits, follows up, and logs to CRM without per-step human approval. AI Assistant (introductory free on paid plans) provides conversational access to prospecting data and campaign analysis.
- ✓Publishes a first-party remote MCP server at mcp.apollo.io on every plan including the free one, with prebuilt connectors for Claude, ChatGPT and Perplexity, and CRM sync with Salesforce and HubSpot runs in both directions.
Limitations
- –Usage runs on credits: a verified email is 1 credit, a phone number 8, enrichment 1 to 8 per record and US dialing 2 per minute, with additional credits bought separately.
- –Organization starts at 3 seats at $119 per user per month on annual billing, and downgrades take effect immediately without mid-term refunds.
- –Apollo's AI policy allows Customer Data to be used to train its internal models, and it publishes no customer opt-out.
Instantly.ai
Pros
- ✓Deliverability is built in. Unlimited email accounts and automated warmup come on every plan, and Light Speed adds SISR dedicated server and IP rotation to keep mail out of spam at volume.
- ✓The AI Reply Agent classifies inbound replies by intent and triggers the correct follow-up automatically, so high-volume outbound runs without a human triaging every reply.
- ✓Publishes an official MCP server at mcp.instantly.ai and a REST API v2 with OAuth, and Outreach can be tried free for 14 days with no card, with 1,000 free Instantly Credits on every account.
Limitations
- –Outreach and Credits are separate subscriptions, so sending plus lead sourcing starts at $94/month, or $75.20 billed annually.
- –HubSpot and Salesforce connectors sync activity and replies out of Instantly in one direction, and two-way sync runs through OutboundSync, Zapier or Make.com.
- –SOC 2 Type II attestation reports are available under NDA, and new sending accounts warm up for about two weeks before campaigns unless bought pre-warmed.
lemlist
Pros
- ✓The Email plan is priced for unlimited users rather than per seat. At $55/month billed annually the whole team shares one rate, and the plan scales by send volume rather than by headcount. Multichannel is the per-user tier at $87.
- ✓AI Variables generates a unique icebreaker per prospect from a single prompt, with no manual research per contact, and Intent Signal and Data Enrichment Agents handle sourcing and enrichment end to end.
- ✓Publishes an official MCP server at app.lemlist.com/mcp on every plan, a library of 38 free Claude skill files, and a full SOC 2 Type 2 report through its trust center.
Limitations
- –Multichannel is priced per user at $87 per month on the annual rate.
- –Contact data is a separate Data plan from $16/month billed yearly for 2,000 credits, about 400 verified emails or 100 phone numbers, and buying signals are a further plan from $21/month billed yearly.
- –The Email plan rate covers 50,000 emails a month, with higher volumes priced in steps from $71 to $527 a month billed yearly for 100,000 to 1,000,000 emails.
Frequently asked questions
What is the difference between Apollo.io vs Instantly.ai vs lemlist?
Apollo.io, Instantly.ai and lemlist all run automated outbound sequences, but each is built around a different core. Apollo.io is a sales intelligence platform: a 240M+ contact database, email sequencing, a built-in dialer and CRM sync, with a permanently free plan and paid seats from $49/mo billed annually. It holds 9,841 G2 reviews at 4.7/5. Instantly.ai is cold email infrastructure: unlimited sending accounts and automated warmup on every plan, and an AI Reply Agent that classifies replies by intent and triggers the matching follow-up. Sending starts at $37.60/mo billed annually, and its 450M+ lead database is a separate Instantly Credits subscription. It holds 4,157 G2 reviews at 4.8/5. lemlist is a multichannel sequencer with AI personalization. Its Email plan starts at $55/mo billed annually for unlimited users and includes a 650M+ lead database, with verified contact data sold as a separate Data plan, while LinkedIn, calling, SMS and WhatsApp steps are on the per-user Multichannel plan. It holds 2,335 G2 reviews at 4.6/5 and publishes a SOC 2 Type II report. Teams that want data, sequencing and calling in one seat-based subscription should look at Apollo.io. Teams that already have lists and need to send cold email at volume across many inboxes should look at Instantly.ai. Teams that want LinkedIn and phone steps alongside email in one sequence should look at lemlist. All three publish an MCP server, so each can be driven from AI assistants such as Claude.
Which is best for my team: Apollo.io vs Instantly.ai vs lemlist?
Apollo.io is best for: B2B sales teams that want contact data, email sequencing, calling and CRM sync in one platform, with a free plan and paid seats from $49/mo billed annually. Instantly.ai is best for: Agencies and outbound teams sending high volumes of cold email across many inboxes, with sending from $37.60/mo billed annually and the lead database sold as a separate credits subscription. lemlist is best for: Teams running multichannel sequences across email, LinkedIn, calling, SMS and WhatsApp, with the Email plan from $55/mo billed annually for unlimited users and multichannel steps on the per-user Multichannel plan.
How does pricing compare between Apollo.io vs Instantly.ai vs lemlist?
Apollo.io uses a freemium model, starting at $49 per month on an annual commitment (month-to-month costs more). Instantly.ai uses a subscription model, starting at $37.60 per month on an annual commitment (month-to-month costs more). lemlist uses a subscription model, starting at $55 per month on an annual commitment (month-to-month costs more).
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