# Alternatives to Apollo

> Source: https://theagentsindex.com/apollo-io/alternatives/ (re-verified)
> Updated: 19 October 2026

## At a glance

| Name | Best for | Starts at | Better than Apollo at | Checked |
| --- | --- | --- | --- | --- |
| [Apollo](https://theagentsindex.com/apollo-io.md) | B2B sales and SDR teams running outbound prospecting on bought-in contact data | Free, then $65/seat/month | — | 19 October 2026 |
| [Clay](https://theagentsindex.com/clay.md) | GTM and RevOps teams, ideally with a GTM engineer, who want best-in-class enrichment, AI research, and now orchestrated multi-step workflows to power outbound at scale. | Free, then $185/month | Model choice, API access | 14 October 2026 |
| [Lead Scorer](https://theagentsindex.com/lead-scorer.md) | A solo founder or small B2B team who wants an autonomous outbound SDR with human-in-the-loop approval and a free CRM underneath. | Free, then about $111/month | Getting out | 18 September 2026 |
| [Gong](https://theagentsindex.com/gong.md) | enterprise revenue teams that want AI over their own sales calls and CRM | On quote | API access, Single sign-on | 19 October 2026 |

“About” figures are converted at the European Central Bank rate of 22 October 2026.

## What to watch for

- **Clay**: Costs scale non-linearly with row count and AI usage; budget the Actions and Data Credits sliders carefully and remember failed lookups still consume credits.
- **Lead Scorer**: Primary discovery is the French SIRENE registry; web discovery fills gaps but the platform is tuned for French B2B sourcing.

Best match first.

## Shortlist

### 1. Clay

GTM data platform with AI research agents, enrichment waterfalls and outbound workflow automation.

**Where it improves on Apollo:**
- [Model choice: yes — The buyer picks the model per AI action from a published catalogue spanning several providers, and can substitute their own provider account entirely by supplying an API key.](https://university.clay.com/docs/ai-in-clay)
- [API access: yes — A documented Public API with its own key is available on every plan including free and trial, though tables are read-only and structured queries or paging past 100 rows need Enterprise API table sync.](https://university.clay.com/docs/clay-api-cli)
- [Bring your own key: yes — Bringing your own provider keys is included on every tier down to Free; doing so skips Data Credit charges entirely and only consumes one Action per run, though Clay's own keys run AI roughly twice as fast.](https://www.clay.com/pricing)

**Trade-offs against Apollo:**
- [Seat model: no — Clay does not charge per seat at all: every tier from Free upward includes unlimited users and tables per workspace, so there is no seat floor or ceiling and spend scales on Actions and Data Credits instead.](https://www.clay.com/pricing)

[View Clay](https://theagentsindex.com/clay)

### 2. SEOmatic

Autonomous SEO agents that read Search Console data and publish approved fixes into your CMS.

**Where it improves on Apollo:**
- [Opt out of training: yes — The vendor trains nothing of its own on your data and routes EU-sensitive workspaces to Anthropic in code, but is explicit that its default Moonshot provider gives no equivalent guarantee.](https://seomatic.ai/trust)
- [Getting out: yes — Content exports to spreadsheet or JSON on any plan, published work stays in your own CMS if you cancel, and purchased credit packs roll over until used.](https://seomatic.ai/features)

**Trade-offs against Apollo:**
- [GPT: partial — OpenAI is used for images, embeddings and some text tasks rather than as the main writer, though a workspace may elect to run its text generation on OpenAI with its own key.](https://seomatic.ai/trust)
- [Certifications: partial — GDPR compliance is substantiated with a published Article 28 DPA and EU rights process, but the vendor states plainly that it holds neither SOC 2 nor ISO 27001.](https://seomatic.ai/trust)

[View SEOmatic](https://theagentsindex.com/seomatic)

### 3. Argorant

Verified B2B contact data, email verification and outbound campaigns, drivable by your own AI agent over MCP.

**Where it improves on Apollo:**
- [Done-for-you service: yes — Argorant Managed is a done-for-you engagement where their team buys domains, warms inboxes, writes and runs campaigns and works replies; it is quoted on a call rather than priced publicly.](https://argorant.com/pricing)
- [Model choice: yes — The buyer picks the model by picking the client: Argorant is the tool layer behind one MCP endpoint and takes whatever agent you already pay for.](https://argorant.com/features)
- [API access: yes — A documented REST API is included on every paid plan and on pay-as-you-go, sharing one account and credit balance with the app, with rate limits rising by tier.](https://argorant.com/pricing)

**Trade-offs against Apollo:**
- [Open source: no — The terms reserve the software, models and database compilation to Argorant and grant no rights beyond using the service, so nothing is source-available.](https://argorant.com/terms)
- [Free tier: partial — You can start without a card, but it is a 14-day trial rather than a standing free plan: campaigns pause and unused trial credits expire at day 14.](https://argorant.com/pricing)
- [Single sign-on: no — Sign-in is email and password or Google only; no SAML, OIDC enterprise connection or SCIM provisioning appears on the pricing page, in the docs or in the help centre's account and security section.](https://help.argorant.com/help/getting-started/create-your-account)

[View Argorant](https://theagentsindex.com/argorant)

### 4. Lead Scorer

AI SDR that finds, scores and drafts to B2B leads, with the whole workflow exposed as an MCP server.

**Where it improves on Apollo:**
- [Getting out: yes — CSV export of leads and companies is a free-plan feature and the Terms point to export before closure; what is not stated is whether monthly credits roll over or expire.](https://lead-scorer.com/terms)

**Trade-offs against Apollo:**
- [On the command line: partial — There is no Lead Scorer CLI of its own; terminal use means connecting the MCP server from Claude Code or Codex, for which the vendor publishes a plugin bundling the OAuth MCP and its skills.](https://lead-scorer.com/llms.txt)
- [Open source: no — The product itself is proprietary; what is published openly is the playbook layer, 25 downloadable SKILL.md files, not the application the vendor retains rights in.](https://lead-scorer.com/terms)
- [A company can buy it: partial — An organisation can contract for it and billing details include organisation data, but every published plan is a single-user workspace with one connected inbox; no team or enterprise plan is offered.](https://lead-scorer.com/terms)

[View Lead Scorer](https://theagentsindex.com/lead-scorer)

### 5. Gong

Revenue AI platform with pre-built and custom agents over calls, emails and CRM data.

**Where it improves on Apollo:**
- [API access: yes — A documented public REST API covers calls, transcripts, users, stats and permission profiles, with Basic or OAuth credentials and published rate limits.](https://help.gong.io/docs/what-the-gong-api-provides)
- [Single sign-on: yes — SAML 2.0, OIDC and OAuth 2.0 are all supported with named IdPs, alongside SCIM provisioning and configurable SAML session timeouts.](https://help.gong.io/docs/summary-of-security-features)
- [Opt out of training: yes — No opt-out is needed because the default is exclusion: Gong states customer data never trains generative models and outputs stay inside the tenant's own data environment.](https://www.gong.io/platform/trust)

**Trade-offs against Apollo:**
- [Done-for-you service: no — You buy and run the software yourself; Gong's people provide implementation, training and support around it rather than running revenue work as a service.](https://www.gong.io/platform/revenue-ai)
- [Claude: partial — Claude is supported as an external AI client that queries Gong's MCP server, not as a model you can point Gong's own AI at; a tech admin must enable the connector.](https://help.gong.io/docs/about-gong-mcp-server)
- [GPT: partial — ChatGPT appears only as an MCP client an admin can connect to Gong; Gong does not document running GPT models behind its own features.](https://help.gong.io/docs/about-gong-mcp-server)

[View Gong](https://theagentsindex.com/gong)

### 6. Revnu

AI growth agent that runs outbound, paid ads and SEO/GEO with a human approval queue.

**Where it improves on Apollo:**
- [API access: yes — A documented REST API with an OpenAPI 3.1 description, bearer tokens, seven scopes and published rate limits covers review, agent chat, results, workflows and leads.](https://revnu.com/docs/llms.txt)

**Trade-offs against Apollo:**
- [Free tier: partial — You can start without a sales call and the first day is free, but a card is taken up front on Pro and there is no standing free plan.](https://revnu.com/pricing)
- [Seat model: no — Pricing is not per seat at all: one flat account price with no seats to count, though the account itself is capped at twenty-five people.](https://revnu.com/solutions/enterprise)
- [Admin controls: partial — Real constraints exist on the agent — approval queue, per-lane auto-send, a do-not-contact block list, ad caps — but there is no role model to constrain teammates.](https://revnu.com/solutions/enterprise)

[View Revnu](https://theagentsindex.com/revnu)