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CRM · head to head

Apollo.io vs Seismic

Apollo.io logo

Apollo.io

CRM

Revenue intelligence platform

From
Free
Rated
-
Full reviewWebsite
Seismic logo

Seismic

CRM

Sales enablement and content management platform

From
On request
Rated
-
Full reviewWebsite

The short version

  • Only Apollo.io has a free tier, so it costs nothing to try first.
  • Each has a real cost: Apollo.io everything is metered in credits, and the free Starter plan runs on them too, so prospecting volume is capped rather than the feature set; Seismic weak digital sales room and micro-site functionality with low customer engagement
  • They diverge on capability: Apollo.io covers Contact database, Seismic covers Content management.
  • Prices and features above were last checked on 30 August 2026.

Where they differ

Only the attributes on which Apollo.io and Seismic actually diverge.

Attributes where Apollo.io and Seismic differ
AttributeApollo.ioSeismic
Starting priceFreeOn request
Pricing modelsubscriptionUnknown
Free tierYesNo
PlatformsWebWeb, API
Founded20202010

Identical on both: user rating (Not yet rated), category (CRM).

What each one covers

Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.

Only in Apollo.io

  • Contact database
  • Email finder
  • Lead search
  • Automation
  • Engagement tracking
  • Reporting
  • Outlook
  • Gmail

Only in Seismic

  • Content management
  • LiveDocs automation
  • Content analytics
  • Learning & coaching
  • Buyer engagement
  • Microsoft Dynamics
  • Outreach
  • SOC 2 Type II

Both cover

  • Salesforce
  • HubSpot
  • Slack
  • Web support

What people use each for

The jobs each tool is most often brought in to do.

Apollo.io

  • Sales prospecting and lead generationnot Seismic
  • Contact database management for sales teamsnot Seismic
  • Email outreach and workflow automationnot Seismic

Seismic

  • Content managementnot Apollo.io
  • Sales trainingnot Apollo.io
  • Proposal automationnot Apollo.io
  • Buyer engagementnot Apollo.io

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

Apollo.io

  • Everything is metered in credits, and the free Starter plan runs on them too, so prospecting volume is capped rather than the feature set
  • Plans described as unlimited are capped in the fair use policy at 10,000 credits a month for non-paying accounts
  • Connecting a mailbox that is not Gmail or Microsoft requires a paid plan
  • How many records can be selected at once varies by tier
  • Running out of credits means buying more rather than waiting for a reset

Seismic

  • Weak digital sales room and micro-site functionality with low customer engagement
  • Search feature lacks keyword depth, making content discovery difficult
  • Limited learning and LMS capabilities with underwhelming analytics and reporting
  • Complex implementations requiring dedicated internal resources and strong change management
  • High price point with multi-year contracts and no free trial option

Pricing, plan by plan

Apollo.io

Free
  • FreeFree
    • Basic contact search
    • Limited searches
  • Starter$49/month
    • Everything in Free
    • Advanced search
    • Email finder
  • Professional$149/month
    • Everything in Starter
    • Automation
    • Advanced analytics

Seismic

On request

No published plan breakdown. See the Seismic review.

Which should you pick?

Choose Apollo.io if

  • You need contact database.
  • You want to start without paying.
  • You also want email finder.
Apollo.io review

Choose Seismic if

  • You need content management.
  • You work on Web, API.
  • You also want livedocs automation.
Seismic review

Questions people ask

Is Apollo.io or Seismic better?
Neither clearly leads. Apollo.io starts at Free and Seismic at On request, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, Apollo.io or Seismic?
Apollo.io has a free tier; the other does not. Paid plans start at Free for Apollo.io and On request for Seismic.
Does Apollo.io or Seismic run on more platforms?
Apollo.io runs on Web. Seismic runs on Web, API.
Can I use Apollo.io for free?
Yes. Apollo.io has a free tier, so you can try it without paying. Seismic starts at On request.
What is Apollo.io best used for?
Apollo.io is most often used for sales prospecting and lead generation, contact database management for sales teams, email outreach and workflow automation. Of those, sales prospecting and lead generation and contact database management for sales teams are not what Seismic is typically brought in for.
What can Apollo.io do that Seismic cannot?
Apollo.io covers Contact database, Email finder, Lead search, Automation. Seismic covers Content management, LiveDocs automation, Content analytics, Learning & coaching. Both handle Salesforce, HubSpot, Slack, Web support.

Answered from the vendors’ own pages

Apollo.io: Does Apollo offer a free plan?

Yes, Apollo offers a Starter plan that is free forever and includes unlimited email addresses for contacts. Gmail and Microsoft email account linking are available on the free plan with limited third-party email account linking.

Source
Seismic: How is Seismic priced?

Seismic uses custom, quote-based pricing without published list rates. Typical pricing ranges from $30-60 per user for Professional Edition, with mid-market teams spending $20,000-60,000 annually and enterprises exceeding $100,000 per year. Seismic Learning is priced as an incremental per-user fee.

Source
Apollo.io: How does Apollo's credit system work?

Apollo uses a credit-based system for exporting contact data outside the platform. Free and non-paying accounts have a monthly credit limit of 10,000 credits. Paid accounts receive limits based on their plan pricing, calculated as the lesser of annual commit divided by $0.025 or 1 million credits annually.

Source
Seismic: What does Seismic's Enablement Cloud include?

Seismic Enablement Cloud spans five areas: Content Management, Learning & Coaching, Program Strategy & Execution, Meeting Intelligence, and Digital Sales Rooms. An AI engine called Aura runs across all functions, powering content recommendations, learning content generation, meeting summaries, and conversational search.

Source
Apollo.io: How much do trial plans cost on Apollo?

Apollo trial plans include 50 credits and 5 mobile credits to test paid features at no charge. Trial versions do not support non-Gmail/Microsoft email account linking. Upgrades take effect immediately while downgrades take effect at the end of the billing cycle.

Source
Seismic: Does Seismic integrate with Salesforce?

Yes, Seismic provides real-time, two-way sync with Salesforce to embed personalized content, playbooks, and AI-driven recommendations directly into Sales Cloud and Experience Cloud workflows. Seismic also integrates with 150+ platforms including Microsoft Teams, Slack, Zoom, Webex, and sales engagement tools like Salesloft and Outreach.

Source
Seismic: What was Seismic's recent acquisition?

On February 12, 2026, Seismic announced a definitive agreement to merge with Highspot. The combined company operates as Seismic, led by CEO Rob Tarkoff, with Highspot founder Robert Wahbe joining the board. The deal creates a platform worth north of six billion dollars.

Source
Seismic: What are Seismic's main limitations?

Key limitations include weak micro-site and digital sales room functionality with low customer engagement, search features that miss keywords, limited learning and LMS capabilities, complex implementations requiring dedicated resources, and high pricing with multi-year contracts and no free trial.

Source
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