Apollo.io vs Outreach: pricing, features and which to choose

Apollo.io is a sales intelligence and go-to-market platform made by ZenLeads, Inc., doing business as Apollo.io. Founded in 2015, it released its first product in 2016 and says it reached $150 million in annual recurring revenue in May 2025. Apollo also reports more than 500,000 companies using the platform and more than 50,000 weekly active users in 2025. Its 2023 Series D raised $100 million at a reported $1.6 billion valuation. The product combines a business contact database with prospect search, enrichment, sequencing, calling, pipeline support, analytics, and AI features. That combination places Apollo closer to a sales operating system than a standalone lead database, serving founders, sales teams, marketers, and revenue operations groups.

Apollo’s workflow usually begins with finding people or companies through filters, then selecting records for enrichment, lists, sequences, or exports. Email campaigns are available on every account. Free users can connect Gmail, while paid users can connect Microsoft Office and other providers. Teams can create sequences, manage pipeline activity, record calls, prepare for conversations, and review AI-generated insights. The AI Assistant accepts natural-language requests, uses Apollo data and saved messaging context, and can find decision-makers, research accounts, build sequences, export lists, and report on performance. Scheduled agents can run some outbound tasks in the background. Permissions still govern available actions, and Apollo advises reviewing generated messages, matches, and credit estimates before execution.

Apollo’s main limitation is pricing and usage complexity: the final amount depends on seats, billing frequency, credits, add-ons, and selected features. Basic includes one mailbox, 250 daily emails, five team workflows, and 1,000 records per selection, while Professional raises several limits and adds AI and call features. Standard plans are for internal business use, so powering external products, sharing data with customers, or reselling it requires a separate agreement. Apollo competes with ZoomInfo, Cognism, Outreach, Salesloft, and HubSpot Sales Hub. It combines data and enrichment more closely than Outreach or Salesloft, and adds execution tools beyond ZoomInfo or Cognism. Choose Apollo if one team needs prospect intelligence, outbound execution, enrichment, and AI actions together.

Outreach began in early 2014 and presents itself as an agentic AI platform for revenue teams. Its coverage includes prospecting, deal management, forecasting, coaching, account planning, customer expansion, and conversation intelligence. The company information page names Sands Capital, Salesforce Ventures, Lone Pine Capital, Spark, DFJ, Trinity, Mayfield, and other investors, and reports $489 million in funding plus a $4.4 billion valuation after Series G financing. Reuters reported in 2021 that Outreach raised $200 million at that valuation and had raised $489 million in total. No separate product launch date appears in the available material, making the founding year the clearest historical milestone. Buyers researching company maturity should distinguish these funding claims from product release dates.

Outreach combines several revenue activities in one application, including multi-channel engagement, sequences, scheduling, mobile and Slack access, account planning, relationship maps, conversation intelligence, an integrated dialer, deal and pipeline management, reporting, forecasting, coaching, and expansion workflows. AI features cover research, personalization, meeting preparation, deal inspection, coaching, forecasting, renewals, and account planning. Teams can add case studies, white papers, competitive battlecards, and other content through Knowledge for personalization and assistance. Outreach MCP connects information and actions across a go-to-market stack, while Omni supports questions and actions involving accounts, opportunities, prospects, and meetings. Before buying, map current processes to these modules and confirm which package includes required functions.

AI credits apply to discrete actions, such as generating a personalized message or completing an individual search, with deductions based on each action's defined cost. Amplify is licensed at the organization-instance level, while features and usage limits depend on the purchased package. Outreach describes encryption, single sign-on, role-based access controls, privacy protection, configurable agent controls, and audit trails. It has no listed free plan or free trial, and the available material does not state whether customer data trains proprietary or third-party models or identify a foundation model. Salesloft is the closest comparison for sales engagement and revenue operations; G2 also lists Agentforce Sales, Clari, Apollo.io, HubSpot Sales Hub, and Gong. Outreach is a strong fit for coordinated revenue teams, but buyers needing public pricing, a confirmed free evaluation, or explicit AI data-use terms should compare alternatives before committing.