Apollo.io wins for most sales teams evaluating this pair in 2026. It combines a 275M+ contact database with built-in sequencing, calling, and email tools at $49/user/month on Professional — and a genuinely useful free tier with 10,000 email credits per month. Outreach is a purpose-built enterprise sales execution platform with no public pricing (expect $100+/user/month after negotiation), and it earns that premium with deeper Salesforce bi-directional sync, conversation intelligence, and coaching dashboards that serious revenue operations teams depend on. Choose Outreach if you are running a 50+ rep org with a dedicated RevOps function; choose Apollo if you want data and engagement in one tool without enterprise procurement.
Quick comparison
| Feature | Outreach | Apollo.io |
|---|---|---|
| Starting price | Free | Free plan |
| Free plan | No | Yes |
| Open source | No | No |
| Self-hostable | No | No |
| G2 rating | Not listed | Not listed |
| Best for | enterprise sales teams with dedicated RevOps, deep Salesforce integration needs, and $100+/user budgets | SMB and mid-market sales teams who need a B2B contact database and outbound sequencing in one affordable tool |
| Starting price | No public pricing — requires a sales demo; typically $100–$150+/user/month at enterprise | Free tier available; Professional at $49/user/month |
| Free plan | No | Yes — 10,000 email credits/month, 5 sequences, basic CRM |
| Contact database | No built-in database — sequences your own lists | 275M+ B2B contacts with filters for title, industry, headcount, tech stack |
| Open source | No | No |
| Self-hostable | No | No |
| Deployment model | SaaS (enterprise) | SaaS (SMB to mid-market) |
| Salesforce integration | Deep bi-directional sync, native activity capture, opportunity influence tracking | Two-way sync available, solid for most teams but less granular than Outreach |
| Conversation intelligence | Yes — Kaia AI for call recording, transcription, and coaching | Basic call recording; more limited coaching features |
| Best for | Enterprise orgs with RevOps teams managing pipeline attribution and rep coaching | Teams who want prospecting data + outreach sequences without two separate tools |
Outbound sequence workflow
Apollo.io wins here for the majority of sales teams. You can build a multi-step sequence — email, call, LinkedIn task — in under ten minutes, and the free plan lets you run five active sequences simultaneously with real sending limits that are actually useful. The interface is clean, A/B testing on email steps is built in, and you can pull prospects directly from the contact database into sequences without switching tools or uploading CSVs. Outreach has a more powerful sequence builder — branching logic, conditional rules, and deeper trigger-based automation — but it requires setup time and usually a dedicated admin to configure correctly. For teams that need basic to mid-complexity sequences running quickly, Apollo is faster to value. Outreach earns its complexity for large enterprise teams where sequence governance, multi-channel orchestration, and sequence attribution to pipeline matter at scale.
Email deliverability and inbox controls
Outreach has a meaningful edge on deliverability infrastructure and inbox management. It offers detailed sending controls including throttling by rep, daily volume limits per mailbox, warm-up sequencing for new domains, and proactive bounce handling that flags risky sends before they go out. Outreach's deliverability reporting shows open rates, reply rates, and bounce rates by sequence and rep in a way that makes diagnosing inbox problems faster. Apollo's deliverability controls have improved significantly — it now offers mailbox health scoring, bounce tracking, and basic throttling — but the controls are less granular and the reporting less actionable for teams running high volumes across dozens of reps. If your team is sending 500+ emails per rep per week and domain reputation is a real concern, Outreach's tooling gives you more levers to pull.
CRM sync and activity capture
Outreach's Salesforce integration is the strongest in the sales engagement category. Activity capture is bidirectional and near real-time — emails sent, calls logged, meetings booked, and sequence enrollment all flow back to Salesforce opportunity and contact records without manual intervention. Outreach can write to custom fields, map to specific activity types, and handle complex multi-object relationships that Apollo's sync occasionally flattens. Apollo's Salesforce sync handles the core flows well — contacts, accounts, activities, and sequence data sync reliably — and for most SMB and mid-market teams it is more than sufficient. But enterprise RevOps teams running complex attribution models, pipeline inspection dashboards, or Salesforce-native forecasting workflows will hit the ceiling of Apollo's sync sooner. If Salesforce is the system of record and accuracy of activity data matters for forecasting, Outreach is the safer choice.
B2B contact data and prospecting
This is where Apollo has no competition from Outreach. Apollo.io's database contains 275 million B2B contacts with verified email addresses and direct dials, filterable by job title, seniority, department, company size, industry, geography, technology stack, funding stage, and hiring signals. You can build a prospecting list, enrich it with intent data, and launch a sequence in the same session — no CSV export, no switching tools, no separate data vendor invoice. Outreach does not include a contact database at all. It is a sequencing and engagement platform that assumes you will bring your own lists from Salesforce, a data vendor like ZoomInfo or Lusha, or manual research. For teams that are also spending $10,000–$30,000 per year on a separate data vendor, Apollo's $49/month Professional plan can consolidate two bills into one. That is the single most compelling reason many SMB teams choose Apollo over the Outreach + ZoomInfo stack.
Manager reporting and coaching
Outreach is meaningfully stronger for sales managers who need to inspect rep activity, coach on calls, and tie engagement metrics to pipeline outcomes. Outreach Kaia records and transcribes calls, surfaces talk-time ratios, identifies competitor mentions, and flags coaching moments — all surfaced in a manager dashboard without requiring a separate conversation intelligence tool. Pipeline overview, sequence performance by rep, and deal risk signals are all available in a unified view designed for weekly rep reviews and QBRs. Apollo's reporting covers the basics well — sequence performance, open/reply rates, activity by rep — but it lacks the depth of conversation intelligence and pipeline-level coaching that Outreach provides. Teams running a structured sales methodology like MEDDIC, Sandler, or Challenger who want tooling to reinforce it during coaching will find Outreach's platform significantly better suited.
Cost per rep and total cost of ownership
Apollo wins decisively on cost for most teams. The free tier supports real prospecting and sequencing work — 10,000 email credits, 5 sequences, basic analytics — and the Professional plan at $49/user/month includes the contact database, full sequencing, dialer, and CRM sync. Outreach has no public pricing; in practice, enterprise contracts typically run $100–$150 per user per month with annual commitments, implementation fees, and add-ons for conversation intelligence, deal management, and forecasting. For a 10-rep team, Apollo Professional costs roughly $490/month versus an estimated $1,000–$1,500/month for Outreach — a gap that widens at scale. The calculus changes if Outreach replaces a separate conversation intelligence tool (like Gong at $100+/user/month) because Kaia is included. But for teams not needing enterprise-grade coaching and attribution, Apollo's total cost of ownership is dramatically lower.
Pricing deep-dive
Outreach
- No public pricing — requires a sales demo to get a quote.
- Typical enterprise contracts: $100–$150+/user/month with annual commitment.
- Add-ons available for Kaia conversation intelligence, deal management, and forecasting.
- Implementation and onboarding fees apply for larger deployments.
Apollo.io
- Free: 10,000 email credits/month, 5 active sequences, basic CRM integration.
- Basic: $0/month (free forever for solo prospecting).
- Professional: $49/user/month — full contact database, unlimited sequences, dialer, advanced filters.
- Organization: custom pricing for teams needing SSO, advanced permissions, and dedicated support.
Pricing verdict: Apollo.io wins on pricing for almost every team below 50 reps. The free tier is genuinely usable, Professional at $49/user/month bundles what most teams pay two vendors to get (data + sequencing), and there is no procurement process to start. Outreach's enterprise pricing — typically $100–$150+/user/month without public transparency — is justified only when you need its depth: advanced Salesforce attribution, Kaia conversation intelligence, and enterprise governance at 50+ reps. At that scale, Outreach can consolidate Gong and a data vendor, making the per-seat math more defensible.
How to migrate from Outreach to Apollo.io
What real users say
Outreach: Outreach users consistently praise the depth of Salesforce integration, the quality of Kaia call intelligence, and the sequence analytics available to managers. The recurring complaints are predictable: pricing opacity makes budget planning difficult, the admin configuration burden is high without a dedicated RevOps resource, and the platform can feel over-engineered for smaller teams. G2 reviewers frequently note that onboarding takes longer than expected and that the feature set rewards investment in proper setup.
Apollo.io: Apollo.io users love the combination of contact data and sequencing in a single tool — the elimination of a separate data vendor is the most-cited reason teams switch. The free tier receives strong praise for being genuinely functional rather than artificially limited. Common complaints include data accuracy variability on direct dials and mobile numbers, occasional sync lag with Salesforce, and the sense that the UI has grown complex as features have been added. Teams using Apollo at high volume sometimes report email deliverability challenges that require careful throttling configuration.
Sources: Synthesized from G2, Capterra, and Reddit r/sales review patterns, vendor positioning pages, and public pricing documentation. Verify current reviews and pricing before committing to either platform.
Final verdict
Choose Outreach if...
- Choose Outreach if you run a 50+ rep enterprise sales team with a dedicated RevOps function that needs deep Salesforce attribution, manager coaching tools, and sequence governance at scale.
- Choose Outreach if you are already paying for Gong for conversation intelligence — Outreach's Kaia can consolidate that spend while adding sequencing under one contract.
- Choose Outreach if your compliance or security requirements demand enterprise-grade audit logs, SSO, and permission controls that Apollo's current plans do not cover.
Choose Apollo.io if...
- Choose Apollo.io if you want B2B prospecting data and outbound sequencing in a single tool without paying two vendors — the Professional plan at $49/user/month consolidates what most teams spend $200+/user/month to assemble separately.
- Choose Apollo.io if you are a founder, SDR team lead, or small sales team that needs to start generating pipeline immediately — the free tier with 10,000 email credits and 5 sequences is genuinely enough to prove the workflow.
- Choose Apollo.io if you need a platform your reps will actually use without weeks of onboarding — the UI is self-service enough that non-technical reps can set up sequences and pull prospect lists on day one.
Consider neither if: Consider neither if your primary need is conversation intelligence and deal forecasting rather than outbound engagement — Gong or Clari are better fits. If you are primarily an inbound team, a CRM like HubSpot with built-in sequencing may be more efficient than adding a dedicated sales engagement layer.