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Sales Automation · Email Automation

Reply.io

Reply.io is a multichannel sales engagement platform combining a billion-contact B2B database, built-in email infrastructure and warm-up, and conditional sequences across email, LinkedIn, calls, SMS and WhatsApp, plus Jason, an autonomous AI SDR agent.

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Overview

What is Reply.io?

Reply.io is a sales engagement platform published by ReplyApp Inc., an American company founded in 2014 with roughly a hundred staff spread across the United States, Canada and Ukraine. Its pitch is consolidation: rather than paying for a contact database, a warm-up service, a sequencing tool and an AI writer separately, a team runs the whole outbound motion inside one subscription.

The product is organised around three moments. Discover covers audience building: real-time search across a claimed one billion-plus B2B contacts, intent signals drawn from hiring activity, LinkedIn engagement, tech-stack changes and company growth, contact enrichment, the Findy and Name2Email Chrome extensions, and website visitor tracking that pushes identified companies straight into a sequence. Engage covers outreach: conditional multichannel sequences spanning email, LinkedIn, calls, SMS and semi-automated WhatsApp, plus any other channel reachable through a Zapier step. AI variables and configurable research agents personalise each message, and replies land in a unified inbox. Convert covers the finish: a meeting scheduler embedded in sequences, AI-generated replies that answer basic questions and book calls, and synchronisation with HubSpot, Salesforce and Calendly.

Underneath sits an email infrastructure layer that few competitors bundle. Reply sells Google or Microsoft mailboxes, new or pre-warmed, configures SPF, DKIM and DMARC automatically, starts a peer-to-peer warm-up the moment a mailbox connects, and rotates mailboxes across campaigns. The site advertises 98% email delivery and fourteen days from purchase to first send.

Jason, the AI SDR agent, is the headline feature: presented as learning your product and strategy, finding prospects, personalising outreach, handling replies and booking meetings, in either autopilot or copilot mode. An MCP server extends the same control to Claude Desktop, ChatGPT, n8n and Make.com, alongside a documented public API and iOS and Android apps. Reply claims 3,000-plus customers and a 4.6/5 rating on G2. The footer notes the company has no connection whatsoever with Reply S.p.A.

What it does

  • Build conditional sequences across email, LinkedIn, calls, SMS and WhatsApp
  • Hand outbound to Jason, an AI SDR agent working on autopilot or in approval mode
  • Search more than one billion B2B contacts in real time, filtered by intent signals
  • Buy, connect and warm up mailboxes, with SPF, DKIM and DMARC configured automatically
  • Personalise every message with AI variables and per-prospect research agents
  • Book meetings directly from sequences and sync them to HubSpot or Salesforce
  • Run campaigns from Claude, ChatGPT, n8n or Make.com through the Reply MCP server
Audience

When to use Reply.io / When not to

A quick filter to help you decide if Reply.io is the right fit.

When to use Reply.io

  • SDR and BDR teams running high-volume outbound across several channels at once
  • Founders and solopreneurs who need pipeline before they can afford a sales team
  • Lead generation agencies juggling many client workspaces under a single account
  • Recruiters and talent sourcers who prospect candidates the way sales teams prospect buyers
  • Revenue teams tired of stitching together a database, a warm-up tool and a sequencer

When not to use Reply.io

  • Anyone hoping for a permanently free tool: only a 14-day trial is on offer
  • Occasional senders, since the bill scales on both seats and active contacts
  • Buyers who require European data residency, as hosting is in the United States
  • B2C marketers and support teams, since the platform is built for B2B outbound
  • Teams needing a localised interface, as no supported-language list is published
Get started

How to use Reply.io

A typical end-to-end flow, from setup to results.

  1. Create an account and start the 14-day free trial; no credit card is requested
  2. Connect existing mailboxes over SMTP or OAuth, or buy new or pre-warmed ones inside Reply
  3. Let Reply configure the DNS records (SPF, DKIM, DMARC) automatically for purchased mailboxes
  4. Leave the peer-to-peer warm-up running, which starts as soon as a mailbox is connected
  5. Build the audience from the real-time database, LinkedIn and Sales Navigator filters, or the Findy extension
  6. Assemble a multichannel sequence by hand or have the AI generate one
  7. Add AI variables and research agents so each message carries prospect-specific detail
  8. Launch, then work the replies from the unified inbox and the team and channel reports
  9. Optionally connect an AI assistant: copy your API key into the MCP connection URL, a five-minute setup with no code
  10. Lean on in-app chat support, quoted under fifteen minutes between 2 AM and 7 PM EST
Quick read

Pros & Cons

Pros

  • End-to-end coverage: database, mailboxes, warm-up, sequences, AI and reporting in one subscription
  • Warm-up is included free with every mailbox, removing a separate tool and a separate bill
  • Genuinely multichannel rather than email-only, with LinkedIn, calls, SMS and WhatsApp
  • The AI agent can run on autopilot or in approval mode, so the level of control is yours
  • MCP support and a documented API make the platform drivable from an AI assistant, with no code
  • A 14-day trial with no credit card opens the core features, MCP included
  • Track record matters here: founded in 2014, 3,000-plus customers and 4.6/5 on G2

Cons

  • No permanently free plan, and pricing scales on two axes at once, seats and active contacts
  • LinkedIn and Calls & SMS are paid add-ons at USD 69 and USD 29 per account per month
  • The Jason AI SDR agent starts at USD 500 per month, with far higher Growth and Enterprise tiers
  • No subprocessor list is published: it is supplied only on request
  • No EU representative is designated under Article 27, and no SOC 2 or ISO 27001 is claimed
  • Hosting is in the United States with no EU data residency option offered
  • The site and product are English-only, and unlimited mailboxes sit under a Fair Usage Policy
Pricing

Pricing & Plans

There is no permanently free plan. Reply.io offers a 14-day free trial that requires no credit card. The lowest paid entry point is USD 49.00 per user per month on annual billing, or USD 59.00 per user per month billed monthly, on the Email Volume plan covering 1,000 active contacts. LinkedIn automation is charged separately at USD 69 per account per month and Calls & SMS at USD 29 per account per month. The Multichannel plan starts at USD 89 per user per month on annual billing, and the Jason AI SDR agent starts at USD 500 per month.

Plan 1
Email Volume
  • from USD 49 per user/month annually (USD 59 monthly) for 1
  • 000 active contacts
  • rising through published tiers to USD 899 and then contact sales
  • unlimited mailboxes under Fair Usage Policy
  • unlimited emails
  • 50 Live Data credits and up to 200 website visitor reveals per month
  • anti-spam and deliverability suite
Plan 3
AI SDR Starter
  • from USD 500 per month annually or USD 800 monthly
  • unlimited users
  • AI personalisation
  • intent signals
  • autopilot and copilot modes
  • unlimited mailboxes and warm-ups
  • unlimited lead-level visitor reveals
  • managed deliverability
Plan 4
AI SDR Growth
  • from USD 1
  • 500 per month annually or USD 2
  • 500 monthly
  • marked most popular
  • everything in Starter plus white-glove onboarding
  • a Slack channel and custom playbooks
Plan 5
AI SDR Enterprise
  • contact sales
  • everything in Growth plus custom prompt engineering and CEO strategy calls
Plan 6
Agency Core
  • from USD 210 per month on the homepage
  • listed as from USD 166 on the pricing page
  • multi-workspace structure
  • unlimited clients
  • users and mailboxes
  • consolidated email and LinkedIn inbox
  • agency dashboard
  • role-based access
Plan 7
Agency AI SDR
  • from USD 500 per month per client
  • billed as best value for agencies
  • everything in Agency Core plus LinkedIn and email included
  • AI hyper-personalisation at every step
  • AI agents for all clients
  • custom AI playbooks
  • fully autonomous or approval mode
Plan 8
Hybrid plan
  • a combination of high-volume sequences and agentic outreach
  • arranged through the sales team
Special offers — 14-day free trial with no credit card required, opening the core features including MCP access · Migration offer: up to 30% off for teams switching to Reply.io from another tool · Annual commitment savings advertised at up to 17% on some plan families and up to 50% on others · Email warm-up included free with every mailbox, with no separate subscription · 50 Live Data credits and up to 200 website visitor reveals included per month on standard plans · Setup assistance offered to customers on annual plans
Prices and plans listed above may evolve. Always check the official pricing page before subscribing.
Trust & Privacy

Data, GDPR & hosting

A consolidated view of how Reply.io handles your data.

GDPR overview

Reply publishes a Data Processing Agreement and names GDPR, UK GDPR, CCPA/CPRA and CASL as applicable frameworks. It self-certifies to the EU-U.S. Data Privacy Framework, the UK Extension and the Swiss-U.S. Data Privacy Framework with the U.S. Department of Commerce, and relies on Standard Contractual Clauses and the UK International Data Transfer Addendum for transfers. ReplyApp Inc. submits to Federal Trade Commission enforcement, and unresolved Framework complaints are referred to BBB National Programs. Data subject rights are exercised at dpo@reply.io, while requests about customer-controlled data are redirected to the relevant customer. Two gaps deserve naming: no EU representative under Article 27 is designated although the publisher is US-based, and no SOC 2 or ISO 27001 certification is claimed anywhere on the site.

Who owns the data?

ReplyApp Inc. states the point plainly: you retain ownership of your data. The company acts as a controller for its own records, meaning account and billing details, website usage, support exchanges, marketing activity and its own Reply Database. It acts as a processor for everything the customer drives, including prospect lists, campaign content, CRM records, mailbox data and AI inputs, where a Data Processing Agreement governs the relationship. Internal access is restricted to authorised personnel bound by confidentiality obligations, and Reply says it does not sell personal information. Aggregated, anonymised or de-identified data may still be reused by Reply for analytics, benchmarking, security and product improvement.

Reuse rights

Customers may use, export and reuse their own data without asking Reply for permission; for that content Reply acts on customer instructions rather than on its own account. Reply itself uses the data to run and secure the service, operate campaigns and mailbox infrastructure, power AI features, monitor deliverability and abuse, and improve the product. AI inputs may pass through unnamed third-party AI providers, which are contractually required not to use that content for generalised model training. Reply makes the same commitment for itself, except where expressly agreed in writing. Aggregated and de-identified data may be reused freely by Reply. One point deserves attention: the Reply Database may infer a company email format when no direct address is available.

Data retention & training

Retention summary
Reply keeps personal information for as long as reasonably necessary to run the service, meet legal obligations, resolve disputes, enforce agreements and maintain security and fraud prevention. Once an account is cancelled, account data is deleted within commercially reasonable timeframes, generally within 60 days. The same 60-day window applies to integration data after you disconnect a third-party service. Limited information may be kept longer for legal compliance, security, fraud prevention, backup integrity, financial record-keeping and dispute resolution. Actual periods vary with the nature of the data, legal requirements, customer instructions and operational need. Deletion requests and other privacy rights are exercised at dpo@reply.io, including removal from the Reply Database. The privacy policy in force is dated 3 July 2026.
Trains on customer data
No
Subprocessors disclosed
No
DPA available
Yes
GDPR contact

Hosting summary

Reply processes and stores data in the United States and in other jurisdictions where the company, its affiliates, subprocessors, service providers, AI providers or infrastructure providers operate. No country other than the United States is named, and no European data residency option is offered. The infrastructure is described only as cloud-based; no hosting provider is identified. Cross-border transfers rely on Standard Contractual Clauses, the UK International Data Transfer Addendum, and the EU-U.S., UK Extension and Swiss-U.S. Data Privacy Frameworks. Data in transit is protected with SSL/TLS, and personal information processed on behalf of customers is encrypted at the database level. One caveat for anyone checking independently: the domain resolves to a Cloudflare anycast address, which reveals nothing about where the origin servers actually sit.

Hosting countries
🇺🇸 United States
Availability

Where Reply.io works

Country-level availability.

Not available in

No country Level blocklist is published. The Terms of Service instead require users to confirm they are not located in, and will not access the service from, any country or territory subject to a comprehensive United States embargo, and that they appear on no United States government list of prohibited or restricted parties. No individual country is named in that clause.
Watch-outs

Things to keep in mind

Risks and trade-offs to weigh before adopting Reply.io.

  • Cold outreach is regulated and the responsibility stays with you: GDPR, CAN-SPAM and CASL compliance, and a working unsubscribe mechanism in every commercial message, are the customer's obligation, not Reply's
  • AI-generated content can be inaccurate, incomplete or plainly unsuitable; the platform states it must be reviewed before sending, and automating that review away is the fastest route to reputational damage
  • The Reply Database may infer a company email format when no direct address exists, which means some contacts you reach were guessed rather than verified
  • Handing prospecting entirely to an autonomous agent erodes the tacit market knowledge a sales team builds by writing to buyers itself, a loss that only shows up much later
  • Unlimited mailboxes are bounded by a Fair Usage Policy indexed on active contacts, and stored prospects default to a 100,000 cap, so capacity assumptions should be checked rather than assumed
  • AI features route through unnamed third-party providers, and no subprocessor list is published, so you cannot fully map who touches your prospect data
  • Disputes fall under Delaware law with an arbitration clause and a class action waiver; opting out requires posting a written notice within the stated window
Setup

Setup & Integrations

Technical difficulty

Low for the common path. Sign-up is self-service, and connecting an existing mailbox over OAuth or SMTP takes seconds. If you buy mailboxes inside Reply, SPF, DKIM and DMARC are configured automatically and the platform states no technical skills are required; warm-up starts on its own, and pre-warmed domains arrive with three mailboxes ready. The MCP connection is a five-minute, no-code affair needing only an API key. CRM integrations and direct API work demand more. Annual customers get setup assistance, and support answers in-app in under fifteen minutes during operating hours.

Deployment

Web appMobile appBrowser extensionAPIChrome extensionIOS appAndroid app

Apps stores

Integrations

Salesforce HubSpot Pipedrive Copper Close Zapier Make N8n Calendly Gmail Google Workspace Microsoft 365 LinkedIn LinkedIn Sales Navigator WhatsApp Skyvia Claude Desktop ChatGPT MailToaster.ai Google Postmaster Tools
Company

Behind Reply.io

Company name
ReplyApp Inc.
Founded
02/11/2011
Country of origin
🇺🇸 United States
Headquarters
6218 Georgia Ave. NW, Suite #1, Office 3048, Washington, DC 20011
UBO
Oleg Campbell
UBO country
INFORMATION_NOT_FOUND
Domain registrar country
🇺🇸 United States
Legal contact
Support contact

Fundraising

Reply.io publishes no funding information on its own website: there is no investor page, no press release and no mention of financing on the About page.
Third-party databases contradict each other. Some report roughly USD 400,000 raised over two rounds, the last a seed round of about USD 0.4 million in March 2016 backed by Digital Future and WannaBiz. A founder interview, by contrast, describes the company as bootstrapped with no outside funding. Neither account is confirmed by a first-party source, so both should be treated as unverified.

Social

Official links

Resources

All the official URLs gathered for verification and reference.

Compare

Alternatives

Tools that compete with or complement Reply.io.

I InstantlyS SmartleadA ApolloL LemlistO Outreach.ioS SalesloftH HubSpotM MixmaxE ExpandiM MailshakeK KlentyO OutplayW WoodpeckerS SaleshandyS Snov.ioQ QuickMailS SmartReachS Salesforge
FAQ

Frequently asked questions

What is Reply.io?
Reply.io is a multichannel sales engagement and cold email platform published by ReplyApp Inc. It combines a B2B contact database, built-in email infrastructure, conditional sequences and an AI SDR agent called Jason.
Is there a free plan?
No. There is no permanently free tier, only a 14-day free trial that requires no credit card and opens the core features, including MCP access.
How much does Reply.io cost?
The cheapest paid entry point is USD 49.00 per user per month on annual billing, or USD 59.00 billed monthly, on the Email Volume plan for 1,000 active contacts. The AI SDR agent starts at USD 500 per month.
Which channels does it cover?
Email, LinkedIn, calls, SMS and semi-automated WhatsApp, plus any other channel you can reach through a Zapier step inside a sequence.
Which CRMs does Reply.io integrate with?
Salesforce, HubSpot, Pipedrive, Copper and Close, syncing contacts, accounts, calls, tasks, statuses and activities. Calendly can be added so prospects book straight into the CRM.
Can I run Reply.io from an AI assistant?
Yes. The Reply MCP server works with any MCP-compatible assistant, including Claude Desktop, ChatGPT via n8n, n8n itself and Make.com. Setup takes about five minutes and needs only your API key.
Will my data be used to train AI models?
No, unless you expressly agree in writing. Reply states it does not train generalised models on customer data, and contractually requires the same of its third-party AI providers.
Where is the data hosted?
In the United States, and in other jurisdictions where Reply or its subprocessors operate. No EU data residency option is offered, and no specific hosting provider is named.
How long is data kept after I cancel?
Account data is deleted within commercially reasonable timeframes, generally within 60 days, with exceptions for legal compliance, security, fraud prevention, backup integrity, accounting and dispute resolution.
Who do I contact about privacy or legal matters?
Privacy and data protection requests go to dpo@reply.io, legal enquiries to legal@reply.io, and customer support to support@reply.io. A Data Processing Agreement is published on the site.
Conclusion

Should you pick Reply.io?

Reply.io makes a coherent bet that outbound teams are tired of paying four vendors to do one job. Bundling a billion-contact database, mailbox purchase, automatic DNS setup, peer-to-peer warm-up, multichannel sequencing and an AI agent into a single subscription is genuinely unusual, and the warm-up being free with every mailbox removes a line item most competitors still charge for. The MCP server and public API push that further: being able to start, pause and audit campaigns from Claude or ChatGPT without writing code is something few rivals in this category currently offer. A 2014 founding date, 3,000-plus customers and 4.6/5 on G2 suggest the platform has been tested at scale.

The reservations are real, and mostly about cost and disclosure. Pricing moves on two axes at once, seats and active contacts, which makes forecasting awkward, and the headline figures exclude LinkedIn and Calls & SMS, each a separate per-account add-on. AI credits and email validation are billed on top again, and the Jason agent begins at USD 500 per month. On compliance, the picture is mixed: a published DPA, Data Privacy Framework certification and a clear no-training commitment sit alongside a subprocessor list available only on request, no Article 27 EU representative, no SOC 2 or ISO 27001, and US-only hosting with no European residency option. European buyers in regulated sectors should read those gaps carefully before committing.

The verdict is one of fit rather than quality. For a structured outbound team or a lead generation agency running many client workspaces, Reply.io consolidates a real problem into one place and prices it defensibly. For anyone sending occasionally, or needing EU data residency, the economics and the compliance profile both argue for looking elsewhere.