Apollo.io vs Instantly

Apollo.io is a sales intelligence and engagement platform from San Francisco that combines a B2B database of more than 270 million contacts and tens of millions of companies with the tools to reach them. Many startups use it as their prospecting data source, outbound tool and, at first, a lightweight CRM, all in one subscription.

Prospecting starts with filters for title, seniority, industry, headcount, technologies, funding and buying intent, and a Chrome extension surfaces emails and phone numbers on LinkedIn and company websites. Contacts flow into sequences that mix automated emails, call tasks and LinkedIn steps, with a built-in dialer, call recording, meeting scheduler, enrichment of existing CRM records and AI that researches accounts and drafts personalized messages. Usage runs on credits for emails, mobile numbers and exports. The free plan is unusually generous for a data vendor, and paid plans are priced per user per month, rising through Basic and Professional tiers to a Custom plan for larger teams.

Apollo fits startups, SMB sales teams and founders doing outbound who need data and sequencing at a fraction of ZoomInfo's price. Email accuracy is generally good, mobile numbers are weaker, and teams must manage sending limits and domain health to protect deliverability. ZoomInfo offers deeper enterprise data, Clay is better for multi-source enrichment and research workflows, and Instantly or lemlist focus on outreach volume and personalization. Coverage of Turkish companies exists but is thinner than for the US and Western Europe.

Instantly is a cold email platform built for high-volume outbound. Its main idea is flat pricing with unlimited sending accounts: you connect dozens or hundreds of Google Workspace and Microsoft 365 mailboxes, and Instantly rotates sends across them so each inbox stays under safe daily limits.

Every connected account can join Instantly's warm-up network, which exchanges and engages with emails to build sender reputation, and deliverability analytics flag problems early. Campaigns support multi-step sequences, A/B testing, spintax, custom variables, sending schedules and a unified inbox called Unibox where replies from all accounts are handled together. Separate add-ons provide a B2B lead database with credits, enrichment, a CRM for managing positive replies and AI agents that classify or answer responses. Outreach plans are priced by contacts and monthly emails, and the add-ons are billed on top.

Instantly is popular with lead-generation agencies, founders and SDR teams who run outbound at scale and understand domain setup, SPF, DKIM and DMARC. Results depend on list quality and restraint; pushing volume carelessly can burn domains. It focuses on email rather than LinkedIn or phone. lemlist is stronger for personalized multichannel sequences, Smartlead is a close rival for agencies, and Apollo combines a larger contact database with sequencing in one subscription.