Apollo.io vs Instantly.ai (2026)

Apollo.io

by Apollo

Instantly.ai

by Instantly

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 with OAuth and prebuilt connectors for Claude, ChatGPT, and Perplexity, available on every plan including the free one, plus action-level CRM writes to Salesforce and HubSpot.
• ✓Bidirectional CRM sync is documented for both Salesforce and HubSpot, keeping records consistent in both directions rather than one-way export, and Apollo's AI policy states that data flowing through customer-configured AI integrations is not used for its own model training.

Limitations

• –Real cost depends on credit use. Credits are granted upfront on annual plans and additional credits are bought separately, with a verified email costing 1 credit, a phone number 8 credits, data enrichment 1 to 8 credits per record, and US dialing 2 credits per minute.
• –API call limits depend on the plan: Free runs at trial-level limits, Basic and Professional allow 2,000 calls per day, Organization allows 6,000, and higher limits require a Custom plan through sales.
• –Organization requires a minimum of 3 seats at $119/user/mo and is sold Annual Only, so unlike Basic and Professional it cannot be bought month to month. Downgrades take effect immediately with no mid-term refunds, so teams that shrink pay for the remainder of their billing cycle on unused capacity.
• –Apollo's AI policy states that Apollo may use Customer Data as an input to train its own internal models, and publishes no customer opt-out. The only opt-out offered is profile suppression for individuals in Apollo's contributor database, which is a data-subject right rather than a customer control.

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 first-party MCP server at mcp.instantly.ai alongside a full REST API v2 with OAuth, so campaign management can be driven from Claude or from custom tooling.
• ✓Free to try before committing. Outreach carries a 14-day trial with no card required, covering 250 uploaded contacts and 1,000 emails, and every account also gets 1,000 free Instantly Credits.

Limitations

• –Modular pricing understates the real cost. Outreach and Credits are separate subscriptions, so sending plus lead sourcing starts at $94/month, or $75.20 billed annually.
• –CRM sync is one-way. HubSpot and Salesforce connectors push activity and reply logs out of Instantly but do not read back. Two-way sync needs OutboundSync, a paid partner tool, or a Zapier or Make.com flow.
• –No public SOC 2 Type II certificate. Instantly says so itself and directs buyers needing one to request attestation reports under NDA. GDPR and CCPA are covered by a published DPA.
• –New sending accounts are not usable immediately. Instantly advises about 10 warmup emails per day and waiting at least two weeks before running campaigns on them, though pre-warmed accounts bought from Instantly skip that wait.