11x vs MailRush.io: Sales Engagement Platform vs Cold Email Platform Comparison
Compare 11x (sales engagement platform) and MailRush.io (cold email platform) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
11x is a sales engagement platform built for multi-channel outreach across email, phone, and social, using custom pricing and features like multi-channel sequences and consented outbound calling. MailRush.io is a cold email platform starting at $19 per month with unlimited senders and unlimited email warming. Many teams use both together for different parts of the workflow.
Key takeaways
- MailRush.io publishes an entry price of $19 per month for its Starter plan, while 11x uses custom, contact-sales pricing across all tiers.
- 11x lists Multi-Channel Sequences, Sequence Builder, Smart Replies, and Consented Outbound Calling as features unique to its platform.
- MailRush.io lists Unlimited senders, Unlimited email warming, Email validation, and Spintax support as features unique to its platform.
- 11x integrates with Salesforce, HubSpot, Pipedrive, Zoho, Gmail, Slack, and G2, totaling 7 named integrations.
- MailRush.io integrates with SMTP, IMAP, Zapier, and Webhooks, totaling 4 named integrations.
Reviewed and updated September 4, 2026
11x vs MailRush.io: Sales Engagement Platform vs Cold Email Platform Comparison
11x is a sales engagement platform; MailRush.io is a cold email platform. Whether you need one, the other, or both depends on which part of the workflow you are buying for: multi-channel sales outreach and engagement tracking on one side, cold email outreach on the other. This guide lays out what each vendor publishes.
The Quick Answer
11x is a sales engagement platform for multi-channel sales outreach and engagement tracking; MailRush.io is a cold email platform for cold email outreach. By each vendor's own wording, 11x lists multi-channel sequences and sequence builder, and MailRush.io lists unlimited senders and unlimited email warming.
MailRush.io publishes an entry price of $19/mo; 11x uses custom pricing, so the two cannot be compared on list price.
If your priority is coordinating outreach across email, phone, and social channels, 11x is the one built for it; for sending campaigns that land in the inbox and generate replies, that is MailRush.io. Many teams run one of each.
Understanding the Core Difference
11x is AI digital worker platform for pipeline generation, built around Alice for outbound and Julian for inbound. Alice runs multi-channel sequences with deep research and AI personalization, consented outbound calling and managed mailboxes, while Julian qualifies inbound leads across phone, chat, SMS and WhatsApp.
MailRush.io is Cold email software that automates outreach and multi-step follow-ups from your own SMTP/IMAP mailboxes or MailRush-provided sending accounts. Email warmup and email validation are included in every plan.
The two platforms take different approaches to solving the same core challenge.
Pricing Comparison
Growth
Starter
11x Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Growth | Contact Sales | Up to 5 End Users; 2,000 New Prospects per Month | 11x Managed Gmail Mailboxes, including domain setup, warmup, inbox rotation and monitoring |
| Pro | Contact Sales | Up to 10 End Users; 5,000 New Prospects per Month | 11x Managed Gmail Mailboxes; Multi-language Outreach (105+) |
| Enterprise | Contact Sales | Unlimited End Users; 10,000+ Prospects per Month | 11x Managed Gmail Mailboxes; Custom Integrations + API |
Source: 11x Pricing
MailRush.io Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Starter | $19/mo | Up to 1,000 contacts | Up to 5,000 emails per month; up to 1,000 emails per day |
| Pro | $39/mo | Up to 30,000 contacts | Up to 10,000 emails per month; up to 1,500 emails per day |
| Scale | $99/mo | Up to 50,000 contacts | Up to 25,000 emails per month; up to 3,000 emails per day |
Source: MailRush.io Pricing
Pricing Analysis
One or both platforms use custom or contact-based pricing for some tiers. Reach out to their sales teams for exact quotes based on your usage needs.
Features Breakdown
- Multi-Channel Sequences
- Sequence Builder
- Smart Replies
- Multi-Lingual Outreach
- Consented Outbound Calling
- Deep Research
- and 3 more listed below
- Unlimited senders
- Unlimited email warming
- Email validation
- API access & Webhooks
- Zapier integrations
- Spintax support
- and 5 more listed below
11x Key Features
- Multi-Channel Sequences
- Sequence Builder
- Smart Replies
- Multi-Lingual Outreach
- Consented Outbound Calling
- Deep Research
- AI Personalization
- Signals and Triggers
- Deliverability & Mailbox Health
MailRush.io Key Features
- Unlimited senders
- Unlimited email warming
- Email validation
- API access & Webhooks
- Zapier integrations
- Spintax support
- Email follow-ups
- Suppression list
- Email copy spam assessment
- Email personalization
- Unsubscription automation
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 11x
- Multi-Channel Sequences
- Sequence Builder
- Smart Replies
- Multi-Lingual Outreach
- Consented Outbound Calling
- Deep Research
- AI Personalization
- Signals and Triggers
- Deliverability & Mailbox Health
Listed only by MailRush.io
- Unlimited senders
- Unlimited email warming
- Email validation
- API access & Webhooks
- Zapier integrations
- Spintax support
- Email follow-ups
- Suppression list
- Email copy spam assessment
- Email personalization
- Unsubscription automation
Integration Ecosystem
11x Integrations
11x connects with: Salesforce, HubSpot, Pipedrive, Zoho, Gmail, Slack, G2.
MailRush.io Integrations
MailRush.io connects with: SMTP, IMAP, Zapier, Webhooks.
Integrations listed only by 11x: Salesforce, HubSpot, Pipedrive, Zoho, Gmail, Slack, G2.
Integrations listed only by MailRush.io: SMTP, IMAP, Zapier, Webhooks.
Use Case Recommendations
Best Fit for 11x
- Organizations with complex tech stacks needing broad integration support (7 integrations)
- Enterprise buyers who prefer custom pricing and dedicated support
- SDR teams running multi-channel outreach sequences
- Sales managers tracking team engagement metrics
Best Fit for MailRush.io
- Budget-conscious teams looking for an affordable cold email platform
- Teams that need a wide feature set (11 capabilities listed)
- Sales teams running high-volume outbound email campaigns
- Agencies managing multiple client outreach programs
Feature Comparison Summary
| Feature | 11x | MailRush.io |
|---|---|---|
| Starting Price | Contact Sales | $19/mo |
| Top Tier Price | Contact Sales | $99/mo |
| Total Features Listed | 9 | 11 |
| Integrations | 7 | 4 |
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
11x serves the multi-channel sales outreach and engagement tracking side of an outbound stack and MailRush.io the cold email outreach side. MailRush.io publishes an entry price of $19/mo, while 11x uses custom pricing for its plans, so compare on features and on the quote you receive. 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 11x and MailRush.io for current information.
Frequently asked questions.
Frequently asked questions- What is the main difference between 11x and MailRush.io?
- 11x is a sales engagement platform focused on multi-channel outreach and engagement tracking, while MailRush.io is a cold email platform focused specifically on email outreach. 11x lists multi-channel sequences and a sequence builder, while MailRush.io lists unlimited senders and unlimited email warming as core capabilities.
- How much does 11x cost compared to MailRush.io?
- MailRush.io publishes a starting price of $19 per month for its Starter plan, while 11x uses custom pricing across its Growth, Pro, and Enterprise tiers, requiring buyers to contact sales for a quote. Because 11x has no published list price, the two cannot be directly compared on cost.
- Which integrations does 11x support?
- 11x connects with Salesforce, HubSpot, Pipedrive, Zoho, Gmail, Slack, and G2, giving it 7 named integrations. This is presented as a broader integration ecosystem than MailRush.io, which lists only SMTP, IMAP, Zapier, and Webhooks.
- Is MailRush.io a good fit for budget-conscious teams?
- Yes, MailRush.io is recommended for budget-conscious teams looking for an affordable cold email platform, with an entry plan priced at $19 per month. It is also positioned for teams that want a wide feature set, since it lists 11 capabilities on its features page.
- Can 11x and MailRush.io be used together?
- Yes, the article notes that many teams run one of each platform since they serve different parts of the outreach workflow. 11x handles multi-channel sales engagement across email, phone, and social, while MailRush.io focuses specifically on cold email deliverability and follow-ups.
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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