Tool review · est. 2015
Apollo.io
All-in-one B2B sales platform with 275M+ contacts and free tier
Visit Apollo.io →apollo.io
Tier across use cases
Strengths
- Most generous free tier in B2B sales category - 100 credits/month with over 1M users onboarded provides genuine evaluation versus most platforms requiring paid trials.
- 275M+ claimed contacts is one of the largest databases in B2B sales intelligence - significant raw coverage advantage for startups and early-stage teams.
- Most powerful list-building filters in category per G2 reviewers - industry, company size, title, technology, location, dozens of other attributes.
- Basic at $49/user/mo (annual) is among lowest entry prices for all-in-one sales platforms - $588/user/yr is significantly below Amplemarket ($2,880/user/yr) and ZoomInfo ($15K+/yr).
- 100+ platform integrations including all major CRMs (Salesforce, HubSpot, Pipedrive), engagement platforms (Outreach, SalesLoft), marketing automation (Marketo), and email providers (Gmail, Outlook, SMTP, Clay enrichment).
- API access supports custom integrations and bidirectional data flow between Apollo and other tools.
- AI email writer drafts outreach using company and role data - basic AI capability included in Basic plan.
- For startups and small teams under 5 users where budget is primary priority, Apollo's free tier and low starting price genuinely serve basic prospecting needs.
Trade-offs
- No public affiliate program available - content publishers cannot monetize Apollo recommendations through standard affiliate networks.
- 275M contact figure drops to 96M when "Verified Emails" filter applied - real verified data significantly smaller than headline.
- 20-30% bounce rates documented in real-world testing - significantly higher than Amplemarket (under 3%), creates domain reputation liability without recovery tools.
- Email warmup feature discontinued in 2024 - users hitting deliverability issues have no built-in recovery; must pair with separate Warmy.io ($279/mo) or Smartlead.
- 42.4% capability score across 231 features per Amplemarket benchmark - covers data and basic email but leaves deliverability (2/21), intent signals (8/30), social prospecting (3/18), and AI (7/21) almost entirely empty.
- Pricing inflexibility reportedly locks loyal customers into subscription-time terms per G2 reviewer cited: "rigid policy tied pricing to specific terms at the time of subscription; could not upgrade plan."
- Cookie cutter "all-in-one" claim depends on team needs - users requiring deliverability recovery, intent signals, social prospecting, or advanced AI will hit gaps quickly.
- For teams scaling outbound at volume, the 20-30% bounce rate problem compounds domain reputation damage faster than Apollo's data advantage compensates.
- For procurement-driven enterprise teams, Apollo's pricing model and capability gaps make scaling beyond 25 seats challenging.
- For teams that need built-in deliverability and intent signals, Amplemarket at $2,880-$3,960/user/yr trades higher cost for under-3% bounce rates and complete platform.
- For multichannel engagement at lower cost, Reply.io with Jason AI at $500-$2,250/year covers email + LinkedIn + phone + SMS.
- Apollo's broad positioning means depth in any single use case (data, sequencing, intent, AI) is shallower than dedicated specialists.
Key features
- 275M+ claimed contact database
- 75M+ company profiles
- Most powerful list-building filters in category
- Free tier with 100 credits/mo (1M+ users onboarded)
- Email sequences (unlimited at Basic+)
- AI email writer (basic, uses company/role data)
- Basic phone calling
- CRM data enrichment
- 100+ platform integrations
- Salesforce / HubSpot / Pipedrive sync
- Outreach / SalesLoft integration
- Marketo integration
- Gmail / Outlook / SMTP support
- Clay enrichment integration
- API access for custom integrations
- Conversation intelligence (Professional+)
- Bidirectional CRM sync (Organization+)
- SSO (Organization+)
Pricing
Freemium with massive free tier. Free (100 credits/mo - over 1M users onboarded). Basic $49/user/mo. Professional $79/user/mo. Organization $119/user/mo. 275M+ claimed contacts (96M verified after filter). 20-30% bounce rates documented. Email warmup feature discontinued 2024.
Free
$0/mo
1 seat
- Genuinely usable free tier
- 100 credits/mo
- Basic email outreach
- Most generous free tier in B2B sales category
Basic
$49/mo
1 seat
- 275M+ contact database
- Email sequences (unlimited)
- Basic phone calling
- CRM data enrichment
- Annual saves 17%
Professional
$79/mo
1 seat
- Advanced filters
- Higher credit volumes
- Conversation intelligence
- Outreach analytics
- Salesforce integration
Organization
$119/mo
- Custom reports
- SSO
- Advanced security
- Dedicated CSM
- Bidirectional Salesforce / HubSpot sync
Enterprise
Custom
- Custom pricing
- Volume API
- Dedicated team
- Custom integrations
- Procurement-friendly terms
What reviewers say
g2
4.7/5
Strong G2 sentiment on database size and powerful filters; pricing inflexibility flagged
Best for
Startups and early-stage teams with fewer than 5 users where budget is primary priority and basic prospecting needs are dominant, solo founders running cold email at small scale, teams comfortable with 20-30% bounce rates trading data quality for low cost, and B2B reps wanting most powerful filters in category for niche list building - particularly users planning to migrate to dedicated platforms (Amplemarket, Outreach + ZoomInfo, Reply.io) once outbound scales to teams of 10+.
Frequently asked
- Who is Apollo.io best for?
- Startups and early-stage teams with fewer than 5 users where budget is primary priority and basic prospecting needs are dominant, solo founders running cold email at small scale, teams comfortable with 20-30% bounce rates trading data quality for low cost, and B2B reps wanting most powerful filters in category for niche list building - particularly users planning to migrate to dedicated platforms (Amplemarket, Outreach + ZoomInfo, Reply.io) once outbound scales to teams of 10+.
- How is Apollo.io ranked on TIERSAI?
- Apollo.io earns B tier (7.69/10) for Sales Prospect & Contact Data, and is ranked across 4 use cases in total. Every score uses the same transparent 0-to-10 scale across five axes.
- How much does Apollo.io cost?
- Freemium with massive free tier. Free (100 credits/mo - over 1M users onboarded). Basic $49/user/mo. Professional $79/user/mo. Organization $119/user/mo. 275M+ claimed contacts (96M verified after filter). 20-30% bounce rates documented. Email warmup feature discontinued 2024.
Ready to try Apollo.io?
Start with the free or entry plan and test it on your own work — pricing and limits change often, so check the current options on their site.
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