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Apollo.io vs Klaviyo

Side-by-side comparison of features, pricing, ratings, and alternatives.

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Apollo.io
Apollo.ioAI-powered sales platform combining prospecting data, outreach, and deal management.
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Klaviyo
KlaviyoData-driven email and SMS marketing for e-commerce.
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Overview
Description

Apollo.io is a unified sales intelligence and engagement platform that combines a database of 240M+ verified contacts and 30M+ company profiles with outbound campaign tools, inbound lead routing, and deal execution features. It's positioned to replace several separate prospecting, outreach, and pipeline tools with one integrated system used by over 600,000 companies.

Klaviyo is a marketing automation platform focused on e-commerce, combining email and SMS with deep store-data integration for personalized, behavior-driven campaigns. It is especially popular with Shopify stores.

Pricing
Freemium

Free tier for small lists; paid plans scale with contacts.

Category
Marketing Platforms
Marketing Platforms
Best for
Sales teams, SDRs, and revenue operations professionals
E-commerce marketers
Specifications
deployment
Cloud/SaaS
Cloud/SaaS
api available
Yes
Yes
key integrations
Salesforce, HubSpot, Outreach, SalesLoft, Marketo
—
platforms
—
Web
open source
—
No
Pros & Cons
Pros
  • Combines prospecting database, outreach, and deal tools that often require separate subscriptions elsewhere
  • Free plan is permanently free rather than a time-limited trial
  • Large, actively maintained contact and company database
  • Deep CRM integrations with Salesforce and HubSpot
  • Powerful e-commerce personalization
  • Email and SMS together
  • Strong store integrations
  • Good automation flows
Cons
  • Credit-based system for emails, phone numbers, and enrichment can get confusing to budget for
  • Higher-value features like call recording minutes and workflow automation are gated to paid tiers
  • Non-Gmail/Microsoft email account connection requires a paid plan
  • Pricier at scale
  • Complex for beginners
  • Overkill for non-commerce
Community & Metrics
Upvotes
0
7
User rating
Not enough data
4.7 (3)

What reviewers say

Apollo.io Reviews

No reviews yet.

Klaviyo Reviews

4.7 (3)
Verified User

Recommend Klaviyo

We rolled out Klaviyo last quarter. Powerful e-commerce personalization. No real complaints. Would recommend.

Verified User

Recommend Klaviyo

We rolled out Klaviyo last quarter. Good automation flows. No real complaints. Would recommend.

Verified User

Great email-marketing

Klaviyo has been part of our stack. Strong store integrations. Minor gripe: pricier at scale. Would recommend.

Read all reviews →

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The Verdict

AI-generated from listing data

Apollo.io is a free‑forever sales prospecting and engagement platform for B2B teams, while Klaviyo is a paid‑at‑scale email/SMS marketing tool focused on e‑commerce.

Key differences

  • •Target audience: Apollo serves sales/SDR teams; Klaviyo serves e‑commerce marketers.
  • •Core function: Apollo provides prospect database, multichannel outreach, and deal tools; Klaviyo provides email/SMS campaign automation.
  • •Pricing model: Apollo offers a permanently free starter tier; Klaviyo’s free tier is limited to small contact lists and becomes costly as lists grow.
  • •Integrations: Apollo integrates deeply with CRMs like Salesforce and HubSpot; Klaviyo integrates primarily with e‑commerce platforms such as Shopify.
DimensionWinner

Pricing & value

Apollo has a permanently free starter plan; Klaviyo’s free tier is limited and paid plans scale with contacts.

Apollo.io

Ease of use / learning curve

Klaviyo’s prebuilt flows are geared toward marketers, while Apollo’s credit system and multi‑channel tools can be more complex for sales reps.

Klaviyo

Features & depth

Apollo combines prospect database, outreach automation, AI assistance, and deal execution in one platform; Klaviyo focuses on email/SMS only.

Apollo.io

Integrations & ecosystem

Apollo lists native integrations with Salesforce, HubSpot, Outreach, SalesLoft, Marketo; Klaviyo lists only e‑commerce store integrations.

Apollo.io

Scalability

Klaviyo is built to handle large contact lists and high‑volume email/SMS sends; Apollo’s credit limits may restrict high‑volume outreach.

Klaviyo

Choose Apollo.io if…

B2B sales teams needing prospect data, multichannel outreach, and free entry.

Choose Klaviyo if…

E‑commerce marketers needing email/SMS campaigns and deep store integration.

Common questions

Can I use Apollo.io for free indefinitely?

Yes, the Starter plan is permanently free, though advanced features require paid tiers.

Does Klaviyo support sales prospecting or CRM integration?

No, Klaviyo focuses on email/SMS marketing for e‑commerce and does not list CRM integrations.

Which tool scales better for large contact lists?

Klaviyo is designed to scale with growing contact lists; Apollo’s credit‑based limits can become a bottleneck.