JustCall vs Mailarrow: Sales Engagement Platform vs Cold Email Platform Comparison
Compare JustCall (sales engagement platform) and Mailarrow (cold email platform) side by side. See pricing, features, and integrations to decide which one, or both, your stack needs.
JustCall is a sales engagement platform for multi-channel outreach across phone, SMS, and WhatsApp, starting at $29 per month, while Mailarrow is a cold email platform focused on deliverability and warmup, starting at $39 per month. Teams needing coordinated multi-channel outreach should choose JustCall, while teams focused purely on cold email should choose Mailarrow. Many teams use both together.
Key takeaways
- JustCall's entry plan (Team) costs $29 per month, while Mailarrow's entry plan (Basic) costs $39 per month.
- JustCall offers 5 pricing tiers (Team, Pro, Pro Plus, Business, SalesPro), compared to Mailarrow's 3 tiers (Basic, Professional, Growth).
- Mailarrow's Basic plan supports 2,000 active prospects and 6,000 emails, scaling up to Growth at 50,000 prospects and 150,000 emails for $99 per month.
- JustCall and Mailarrow both integrate with Zoho and Zapier, but JustCall additionally connects with Salesforce, HubSpot, Pipedrive, Slack, Copper, Intercom, Zendesk, and Freshdesk.
- JustCall lists features such as Sales Dialer, SMS Workflows, WhatsApp Inbox, and AI call scoring, while Mailarrow lists Unlimited Email Warmup, Unlimited Mailboxes, and AI Personalization.
Reviewed and updated September 4, 2026
JustCall vs Mailarrow: Sales Engagement Platform vs Cold Email Platform Comparison
Sales teams building an outbound stack often weigh JustCall, a sales engagement platform for multi-channel sales outreach and engagement tracking, against Mailarrow, 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
JustCall is a sales engagement platform for multi-channel sales outreach and engagement tracking; Mailarrow is a cold email platform for cold email outreach. By each vendor's own wording, JustCall lists sales dialer and sms workflows, and Mailarrow lists unlimited email warmup and unlimited mailboxes.
JustCall offers a lower entry point at $29/mo compared to Mailarrow at $39/mo.
If your priority is coordinating outreach across email, phone, and social channels, JustCall is the one built for it; for sending campaigns that land in the inbox and generate replies, that is Mailarrow. Many teams run one of each.
Understanding the Core Difference
JustCall is AI communication platform for sales and support teams combining a cloud phone system, sales dialer, SMS and WhatsApp inboxes, and multi-channel workflow automation. Adds AI call coaching, transcription, sentiment analysis and CRM integration.
Mailarrow is Cold email outreach software with email warmup, AI personalization, unlimited sequences and unlimited connected mailboxes. Users bring their own mailboxes and prospect lists; Mailarrow does not sell leads or provide inboxes.
The two platforms take different approaches to solving the same core challenge.
Pricing Comparison
Team
Basic
JustCall Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Team | $29/mo | Per user; minimum license applies | Unlimited outbound minutes under fair usage; included SMS segments by region |
| Pro | $49/mo | Per user; minimum license applies | Unlimited outbound minutes under fair usage |
| Pro Plus | $89/mo | Minimum license: 2 | Unlimited outbound and inbound minutes under fair usage; 1,000 SMS segments |
| Business | Contact Sales | Minimum license: 10 | Unlimited calling & SMS |
| SalesPro | Contact Sales | Minimum license: 2 | Unlimited outbound calling under fair usage |
Source: JustCall Pricing
Mailarrow Pricing (as of September 2026)
| Plan | Price | Contacts | Emails |
|---|---|---|---|
| Basic | $39/mo | 2,000 active prospects | 6,000 emails |
| Professional | $59/mo | 20,000 active prospects | 60,000 emails |
| Growth | $99/mo | 50,000 active prospects | 150,000 emails |
Source: Mailarrow Pricing
Pricing Analysis
JustCall is more affordable at the entry level ($29/mo vs $39/mo). For teams with tight budgets or those just getting started with multi-channel sales outreach and engagement tracking and cold email outreach, this price difference matters.
JustCall offers 5 pricing tiers compared to Mailarrow's 3, giving you more granularity as you scale.
Features Breakdown
- Sales Dialer
- SMS Workflows
- Bulk SMS
- WhatsApp Inbox
- Call Recording
- Advanced Analytics
- and 4 more listed below
- Unlimited Email Warmup
- Unlimited Mailboxes
- AI Personalization
- Sending mailbox rotation
- Detailed campaign analytics
- Bulk Prospects Import
- and 4 more listed below
JustCall Key Features
- Sales Dialer
- SMS Workflows
- Bulk SMS
- WhatsApp Inbox
- Call Recording
- Advanced Analytics
- Automated Call Distribution
- Sentiment analysis
- AI call scoring
- Real-time agent assist
Mailarrow Key Features
- Unlimited Email Warmup
- Unlimited Mailboxes
- AI Personalization
- Sending mailbox rotation
- Detailed campaign analytics
- Bulk Prospects Import
- Custom properties
- Sending schedules
- Advanced tracking
- Reply tracking
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 JustCall
- Sales Dialer
- SMS Workflows
- Bulk SMS
- WhatsApp Inbox
- Call Recording
- Advanced Analytics
- Automated Call Distribution
- Sentiment analysis
- AI call scoring
- Real-time agent assist
Listed only by Mailarrow
- Unlimited Email Warmup
- Unlimited Mailboxes
- AI Personalization
- Sending mailbox rotation
- Detailed campaign analytics
- Bulk Prospects Import
- Custom properties
- Sending schedules
- Advanced tracking
- Reply tracking
Integration Ecosystem
JustCall Integrations
JustCall connects with: Salesforce, HubSpot, Pipedrive, Zoho, Zapier, Slack, Copper, Intercom, Zendesk, Freshdesk.
Mailarrow Integrations
Mailarrow connects with: Gmail, Outlook, Zoho, Zapier, TrulyInbox.
Shared Integrations
Both tools integrate with: Zoho, Zapier.
Integrations listed only by JustCall: Salesforce, HubSpot, Pipedrive, Slack, Copper, Intercom, Zendesk, Freshdesk.
Integrations listed only by Mailarrow: Gmail, Outlook, TrulyInbox.
Use Case Recommendations
Best Fit for JustCall
- Budget-conscious teams looking for an affordable sales engagement platform
- Organizations with complex tech stacks needing broad integration support (10 integrations)
- Enterprise buyers who prefer custom pricing and dedicated support
Best Fit for Mailarrow
- Budget-conscious teams looking for an affordable cold email platform
- Sales teams running high-volume outbound email campaigns
- Agencies managing multiple client outreach programs
- SDR teams focused on pipeline generation
Feature Comparison Summary
| Feature | JustCall | Mailarrow |
|---|---|---|
| Starting Price | $29/mo | $39/mo |
| Top Tier Price | Contact Sales | $99/mo |
| Total Features Listed | 10 | 10 |
| Integrations | 10 | 5 |
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
JustCall serves the multi-channel sales outreach and engagement tracking side of an outbound stack and Mailarrow the cold email outreach side. JustCall offers a more accessible entry point at $29/mo, while Mailarrow starts at $39/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 JustCall and Mailarrow for current information.
Frequently asked questions.
Frequently asked questions- What's the main difference between JustCall and Mailarrow?
- JustCall is a sales engagement platform built for multi-channel sales outreach and engagement tracking across phone, SMS, and WhatsApp. Mailarrow is a cold email platform focused specifically on cold email outreach, with email warmup and unlimited mailboxes. They cover different parts of the outbound workflow, so many teams use both.
- Which is cheaper, JustCall or Mailarrow?
- JustCall is cheaper at the entry level, starting at $29 per month on its Team plan, compared to Mailarrow's Basic plan at $39 per month. JustCall also offers more pricing tiers overall, with 5 tiers compared to Mailarrow's 3, giving more granularity as a team scales.
- Does JustCall or Mailarrow integrate with more tools?
- JustCall lists more integrations than Mailarrow. JustCall connects with Salesforce, HubSpot, Pipedrive, Zoho, Zapier, Slack, Copper, Intercom, Zendesk, and Freshdesk, while Mailarrow connects with Gmail, Outlook, Zoho, Zapier, and TrulyInbox. Both tools share Zoho and Zapier as common integrations.
- How much does Mailarrow's Growth plan include?
- Mailarrow's Growth plan costs $99 per month and includes support for 50,000 active prospects and 150,000 emails. This sits above the Basic plan at $39 per month for 2,000 prospects and 6,000 emails, and the Professional plan at $59 per month for 20,000 prospects and 60,000 emails.
- Should a team use both JustCall and Mailarrow?
- The article notes that many teams run one of each, since JustCall handles coordinating outreach across email, phone, and social channels, while Mailarrow handles sending campaigns designed to land in the inbox and generate replies. The two platforms take different approaches to solving related but distinct parts of outbound sales.
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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