Apollo.io vs Omnisend in 2026: B2B contact database vs eCommerce email and SMS
Apollo.io finds the B2B prospects you have not talked to yet. Omnisend automates the email and SMS flows for the eCommerce customers who already bought something. Different databases, different jobs.
Apollo.io
Omnisend- Apollo.io's database covers 275M+ B2B contacts across 65+ filters; Omnisend has no contact database at all, it works with subscribers already captured through your store's signup forms and checkout flow.
- Omnisend offers free migration from Klaviyo, Mailchimp, and other platforms, handling the technical transfer at no charge; Apollo.io has no comparable migration service since it is not a list-based sending platform.
- Omnisend supports the Model Context Protocol, letting AI tools connect directly to workflow automation; Apollo.io's AI is oriented toward prospecting research and lead scoring rather than campaign workflow management.
- Apollo.io includes a built-in US dialer and phone outreach on paid plans; Omnisend has no calling feature, its channels are email, SMS, and push notifications for eCommerce lifecycle messaging.
- Omnisend prices flat by list size with no send-volume overage charges on most plans; Apollo.io prices by credits consumed per action, which scales differently and requires more active budget tracking for high-volume prospecting.
- Apollo.io's free tier gives 900 credits a year for prospecting and sequencing; Omnisend's free tier gives 500 emails a month and covers up to 250 contacts for eCommerce automation.
Apollo.io and Omnisend both sit inside the marketing automation category, but they were built to solve unrelated problems. Apollo.io's 275M-plus contact database and dialer exist for B2B sales teams reaching prospects cold. Omnisend's pre-built eCommerce workflows, abandoned cart, browse abandonment, post-purchase, and win-back, exist for online stores automating email and SMS to customers who already have a relationship with the brand. Both offer free tiers, but Apollo.io's free tier is scoped to prospecting credits while Omnisend's is scoped to email and SMS sends for an existing subscriber list, which tells you most of what you need to know about how differently these two products think about a "contact."
The tools at a glance
Apollo.io
Sales intelligence and outreach platform with 275M+ verified contacts, email sequences, dialer, and AI-powered prospecting.
Apollo.io is built around the assumption that your next customer is not yet a contact in any system you own. The 275 million-plus database, searchable across 65-plus filters including job title, company size, and buyer intent signals, gives sales teams a starting point that Omnisend simply has no equivalent for, because Omnisend's entire model assumes the contact already exists.
AI Research prompts and AI lead scoring extend that prospecting focus: reps define custom criteria and get insights like funding rounds or hiring signals per prospect, then let the scoring engine rank contacts by fit. Paired with a built-in dialer and unlimited email sequences on paid tiers, the whole platform is oriented toward outbound motion rather than lifecycle automation for existing customers.
The credits system is the trade-off for that flexibility. Exporting a contact, enriching a record, or making a call all draw from the same shared pool, and a team running daily prospecting will burn through Basic's 30,000 annual credits faster than the number first suggests, which is a different kind of budget discipline than Omnisend's flat, list-size-based pricing requires.
| Feature | Free $0/mo | Basic $49/seat/mo | Professional $79/seat/mo | Organization $119/seat/mo |
|---|---|---|---|---|
| Credits per seat per year | 900 | 30,000 | 48,000 | 72,000 |
| Email Sequences | 2 | Unlimited | Unlimited | Unlimited |
| AI Lead Scoring | No | Yes | Yes | Yes |
| Dialer | Included | Included | Included | Included |
| Waterfall Enrichment | No | Yes | Yes | Yes |
Omnisend
Email and SMS automation for eCommerce with a free tier, flat-rate pricing, and free migration from other platforms.
Omnisend is scoped narrowly and deliberately: email, SMS, and push notification automation built specifically for eCommerce brands, used by over 150,000 stores. Pre-built workflows cover the standard retail lifecycle, welcome series, abandoned cart recovery, browse abandonment, post-purchase follow-up, and win-back, and the AI layer handles copy generation and send-time optimization within those flows.
The pricing structure is the part worth noting against a platform like Apollo.io that charges by credit consumption: Omnisend's tiers are flat-rate by list size, positioned explicitly as a lower-cost alternative to Klaviyo, and the free migration service handles the technical transfer of contacts, segments, templates, and workflows if you are switching from another platform, at no extra charge on Standard plans and above.
The newer MCP integration lets AI tools connect directly into Omnisend for workflow automation tasks, which is a genuinely forward-looking addition, but it does not change what the platform fundamentally is: a tool for automating messages to people who are already your customers or subscribers, with no prospecting or cold-contact capability of any kind.
| Feature | Free $0/mo | Standard From $11.20/mo | Pro From $41.30/mo | Custom Contact |
|---|---|---|---|---|
| Emails per Month | 500 | Scaled to list | Unlimited | Unlimited |
| SMS Campaigns | Yes | Yes | Yes | Yes |
| Automation Workflows | Yes | Yes | Yes | Yes |
| A/B Testing | No | Yes | Yes | Yes |
| Free Migration | No | Yes | Yes | Yes |
Head-to-head feature comparison
| Feature | Apollo.io | Omnisend |
|---|---|---|
| Contact database included | Yes, 275M+ contacts | No, works with your existing subscriber list |
| Primary use case | B2B outbound prospecting | eCommerce email and SMS automation |
| Pricing model | Credits consumed per action | Flat rate by list size |
| Free tier | Yes, 900 credits/year | Yes, 500 emails/month, up to 250 contacts |
| Phone dialer | Yes, included on paid plans | No |
| SMS / push channels | No | Yes, SMS and push included |
| Free migration service | No | Yes, from Standard up |
| MCP / AI tool integration | AI Assistant for prospecting workflows | Yes, Model Context Protocol support |
| AI capability focus | Lead scoring and research prompts | Copy generation and send-time optimization |
| Starting price | $0/mo (Free tier) | $0/mo (Free tier) |
Which should you choose?
Apollo.ioOmnisendApollo.ioOmnisendApollo.ioOmnisendNeither tool is trying to be the other, and that clarity is actually useful: there is no murky middle ground where a buyer genuinely cannot tell which one fits. Apollo.io has no answer for eCommerce lifecycle automation because it has no purchase or cart data to work from, and Omnisend has no answer for cold B2B prospecting because it has no contact database beyond your own subscriber list.
Bottom line
Choose Apollo.io if your growth depends on finding and reaching B2B contacts who are not yet in any system you own, using the free tier to validate data quality before paying. Choose Omnisend if you run an eCommerce store and want flat-rate, predictable pricing for email, SMS, and push automation to your existing customers, especially if you are migrating off Klaviyo and want the technical transfer done for you at no cost. A company with both a B2B sales arm and a DTC storefront has a legitimate reason to run both tools rather than force one to do the other's job.
Frequently asked questions
Can Omnisend be used for B2B prospecting like Apollo.io?
No, Omnisend has no contact database and no cold outreach capability, it only sends to subscribers already captured through your store's signup forms, pop-ups, or checkout flow. Apollo.io is built specifically for finding and reaching B2B contacts who are not already in any list you own.
Does Apollo.io offer free migration from other platforms the way Omnisend does?
No, Apollo.io has no migration service since it is not a list-based sending platform in the way Omnisend is; there is no equivalent concept of migrating a subscriber list into a prospecting and outreach tool. Omnisend's free migration handles moving contacts, segments, templates, and automation workflows from Klaviyo, Mailchimp, or other platforms on Standard plans and above.
Which tool is cheaper for a small team starting out?
Both offer real free tiers scoped to their own use case: Apollo.io gives 900 credits a year for prospecting and sequencing, while Omnisend gives 500 emails a month and covers up to 250 contacts for eCommerce automation. Neither is cheaper in a directly comparable sense since a B2B sales team and an eCommerce store are solving different problems.
Does Apollo.io support SMS or push notifications like Omnisend?
No, Apollo.io has no SMS or push notification channel at any tier, its outreach is limited to email, phone, and LinkedIn sequences aimed at B2B prospecting. Omnisend includes SMS and push notifications on every plan including its free tier, built around eCommerce lifecycle messaging rather than cold outbound.
What is Omnisend's MCP integration and does Apollo.io have something similar?
Omnisend supports the Model Context Protocol, which lets AI tools connect directly into an Omnisend account to automate campaign creation and workflow management tasks. Apollo.io does not publish a comparable MCP integration, its AI capabilities center on research prompts and lead scoring inside its own interface rather than external AI tool connectivity.
Is Apollo.io or Omnisend better for a DTC brand also doing B2B wholesale outreach?
In that case, most brands end up using both rather than choosing one, since Omnisend handles the eCommerce side, abandoned cart, post-purchase, and win-back automation for direct consumers, while Apollo.io handles finding and reaching wholesale or B2B buyers who are not already customers. Neither platform is built to cover the other's side of that split.