AiSDR vs ReachInbox: Sales Engagement Platform vs Cold Email Platform Comparison
Compare AiSDR (sales engagement platform) and ReachInbox (cold email platform) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
AiSDR is a sales engagement platform built for multi-channel outreach across email, phone, and social, priced from $250/mo. ReachInbox is a cold email platform focused on inbox deliverability and campaign volume, with a free plan and paid tiers starting at $39/mo. Teams needing full multi-channel coordination should pick AiSDR; teams focused purely on cold email deliverability should pick ReachInbox. Many teams use both together.
Key takeaways
- AiSDR's Solo plan starts at $250/mo and includes 200 AI-researched contacts per month, 1 domain, 3 mailboxes, and 1 LinkedIn account.
- ReachInbox offers a Free Plan with 50 active leads per month and 250 emails per month, plus a Starter Plan at $39/mo.
- ReachInbox has 5 pricing tiers compared to AiSDR's 3 tiers, giving more granularity as usage scales.
- AiSDR integrates with HubSpot, Salesforce, Gmail, Microsoft Outlook, Aircall, Calendly, and LinkedIn.
- AiSDR lists features like native two-way Salesforce CRM sync and LinkedIn signals, while ReachInbox lists features like unlimited email accounts, lead finder, and inbox placement tests.
Reviewed and updated September 5, 2026
AiSDR vs ReachInbox: Sales Engagement Platform vs Cold Email Platform Comparison
Sales teams building an outbound stack often weigh AiSDR, a sales engagement platform for multi-channel sales outreach and engagement tracking, against ReachInbox, a cold email platform for cold email outreach. They cover different parts of the workflow, so this comparison covers what each one does, what each one costs, and where they overlap.
The Quick Answer
AiSDR is a sales engagement platform for multi-channel sales outreach and engagement tracking; ReachInbox is a cold email platform for cold email outreach. By each vendor's own wording, AiSDR lists ai-researched emails and linkedin actions on autopilot and ami ai gtm agent for strategy and campaign building, and ReachInbox lists unlimited e-mail accounts and unlimited ai warmup.
ReachInbox offers a lower entry point at $0/mo compared to AiSDR at $250/mo.
If your priority is coordinating outreach across email, phone, and social channels, AiSDR is the one built for it; for sending campaigns that land in the inbox and generate replies, that is ReachInbox. Many teams run one of each.
Understanding the Core Difference
AiSDR is AI SDR platform whose agent researches prospects and runs email and LinkedIn outreach on autopilot, with turnkey mailbox setup and warmup, inbox rotation and two-way CRM sync.
ReachInbox is Cold outreach platform that connects unlimited email accounts, warms them up, and runs AI-personalized campaigns from a unified inbox. Adds a lead finder, website visitor identification and inbox placement tests as separate product tabs.
The two platforms take different approaches to solving the same core challenge.
Pricing Comparison
Solo
Free Plan
AiSDR Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Solo | $250/mo | 200 AI-researched contacts/month | 1 domain, 3 mailboxes, 1 LinkedIn account |
| Explore | $900/mo | 800 AI-researched contacts/month | 2 domains, 6 mailboxes, 5 LinkedIn accounts |
| Scale | $2500/mo | 2,500 AI-researched contacts/month | 6 domains, 18 mailboxes, 20 LinkedIn accounts |
Source: AiSDR Pricing
ReachInbox Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Free Plan | Free | 50 Active Leads/mo | 250 Emails/mo |
| Starter Plan | $39/mo | 2,000 Active Leads/mo | 10,000 E-mails/mo |
| Growth Plan | $99/mo | 50,000 Active Leads/mo | 250,000 Emails/mo |
| Pro Plan | $299/mo | 200,000 Active Leads/mo | 1 Million Emails/mo |
| Enterprise Plan | Contact Sales | 500,000 Active Leads | 1 M Emails Monthly |
Source: ReachInbox Pricing
Pricing Analysis
ReachInbox offers the lower entry point ($0/mo vs $250/mo). Teams watching their budget will appreciate the savings, especially when starting out.
ReachInbox offers 5 pricing tiers compared to AiSDR's 3, giving you more granularity as you scale.
ReachInbox includes a free tier, which is helpful for evaluating the platform without upfront cost.
Features Breakdown
- AI-researched emails and LinkedIn actions on autopilot
- Ami AI GTM agent for strategy and campaign building
- Unlimited AI personas
- Turnkey email setup and warmup
- Automated inbox rotation with domain health tracking
- Native two-way HubSpot CRM sync
- and 4 more listed below
- Unlimited E-mail Accounts
- Unlimited AI Warmup
- Hyper-Personalization
- AI Enrichment
- AI Replies
- Webhooks
- and 5 more listed below
AiSDR Key Features
- AI-researched emails and LinkedIn actions on autopilot
- Ami AI GTM agent for strategy and campaign building
- Unlimited AI personas
- Turnkey email setup and warmup
- Automated inbox rotation with domain health tracking
- Native two-way HubSpot CRM sync
- Native two-way Salesforce CRM sync
- LinkedIn signals for post engagement, profile visits and keyword tracking
- AI videos in messages and AI voice notes in LinkedIn messages
- Website visitor tracking, enrichment and outreach
ReachInbox Key Features
- Unlimited E-mail Accounts
- Unlimited AI Warmup
- Hyper-Personalization
- AI Enrichment
- AI Replies
- Webhooks
- API Access and Integrations
- White Labeling
- Lead Finder
- Website Visitor Identification
- Inbox Placement Tests
The two lists below are a diff of each vendor's own feature list by exact wording, so a capability both tools offer can appear on either side under a different name.
Listed only by AiSDR
- AI-researched emails and LinkedIn actions on autopilot
- Ami AI GTM agent for strategy and campaign building
- Unlimited AI personas
- Turnkey email setup and warmup
- Automated inbox rotation with domain health tracking
- Native two-way HubSpot CRM sync
- Native two-way Salesforce CRM sync
- LinkedIn signals for post engagement, profile visits and keyword tracking
- AI videos in messages and AI voice notes in LinkedIn messages
- Website visitor tracking, enrichment and outreach
Listed only by ReachInbox
- Unlimited E-mail Accounts
- Unlimited AI Warmup
- Hyper-Personalization
- AI Enrichment
- AI Replies
- Webhooks
- API Access and Integrations
- White Labeling
- Lead Finder
- Website Visitor Identification
- Inbox Placement Tests
Integration Ecosystem
AiSDR Integrations
AiSDR connects with: HubSpot, Salesforce, Gmail, Microsoft Outlook, Aircall, Calendly, LinkedIn.
ReachInbox Integrations
ReachInbox connects with: GoHighLevel, n8n, Zapier, Make, Slack, Pabbly, Activepieces.
Integrations listed only by AiSDR: HubSpot, Salesforce, Gmail, Microsoft Outlook, Aircall, Calendly, LinkedIn.
Integrations listed only by ReachInbox: GoHighLevel, n8n, Zapier, Make, Slack, Pabbly, Activepieces.
Use Case Recommendations
Best Fit for AiSDR
- Mid-market to enterprise teams with established multi-channel sales outreach and engagement tracking budgets
- SDR teams running multi-channel outreach sequences
- Sales managers tracking team engagement metrics
- Revenue teams coordinating email, phone, and social touches
Best Fit for ReachInbox
- Budget-conscious teams looking for an affordable cold email platform
- Teams that need a wide feature set (11 capabilities listed)
- Teams that want to start free and scale up as needs grow
- Enterprise buyers who prefer custom pricing and dedicated support
Feature Comparison Summary
| Feature | AiSDR | ReachInbox |
|---|---|---|
| Starting Price | $250/mo | Free |
| Top Tier Price | $2500/mo | Contact Sales |
| Total Features Listed | 10 | 11 |
| Integrations | 7 | 7 |
Getting Started Checklist
- Define your multi-channel sales outreach and engagement tracking and cold email outreach requirements and monthly budget
- Estimate your expected sequences and engagement actions and email sending volume to find the right tier
- List the integrations your team currently relies on
- Sign up for free trials or demos of both platforms
- Run a small test with each tool before making a commitment
- Evaluate the onboarding experience and support quality
Final Thoughts
AiSDR serves the multi-channel sales outreach and engagement tracking side of an outbound stack and ReachInbox the cold email outreach side. ReachInbox offers a more accessible entry point, while AiSDR starts at $250/mo. Your decision should weigh pricing against the specific features that matter most for your workflow.
Start with a trial of each to see which platform fits your team's daily process. The best tool is the one your team actually uses consistently.
Pricing and features verified as of September 2026. Visit AiSDR and ReachInbox for current information.
Frequently asked questions.
Frequently asked questions- What's the main difference between AiSDR and ReachInbox?
- AiSDR is a sales engagement platform for multi-channel outreach across email, LinkedIn, and phone, with AI-driven prospect research and CRM sync. ReachInbox is a cold email platform focused on sending campaigns, warming up mailboxes, and generating replies. They serve different parts of an outbound workflow, and many teams use both together.
- Which is cheaper, AiSDR or ReachInbox?
- ReachInbox has the lower entry point, offering a free plan compared to AiSDR's Solo plan at $250/mo. ReachInbox's paid tiers start at $39/mo for the Starter Plan, while AiSDR's plans scale up to $2500/mo for the Scale tier with 2,500 AI-researched contacts per month.
- Does AiSDR support LinkedIn outreach?
- Yes, AiSDR lists AI-researched emails and LinkedIn actions on autopilot as a core feature, along with LinkedIn signals for post engagement, profile visits, and keyword tracking. It also supports AI videos in messages and AI voice notes in LinkedIn messages, and integrates directly with LinkedIn.
- Does ReachInbox offer a free plan?
- Yes, ReachInbox has a Free Plan that includes 50 active leads per month and 250 emails per month. This makes it possible to evaluate the platform without any upfront cost before moving to paid tiers like the Starter Plan at $39/mo or Growth Plan at $99/mo.
- Which CRMs does AiSDR integrate with?
- AiSDR integrates with HubSpot and Salesforce, offering native two-way CRM sync with both platforms. It also connects with Gmail, Microsoft Outlook, Aircall, Calendly, and LinkedIn to support its multi-channel outreach and engagement tracking features.
About the author.
Tim Carden is CMO / CTO at RevenueFlow, which builds and operates outbound revenue engines for B2B companies. Studied at McGill University.
Tim Carden · CMO / CTO
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