MailStream vs MailerBot

MailStream8.8Visit MailerBot8.6Visit

Higher score MailStream #5 in Direct Mail Automation Software 8.8/10 Free plan Free plan✓ 2 of 2 features Visit MailStream

vs

MailerBot #7 in Direct Mail Automation Software 8.6/10 Paid ✓ 2 of 2 features Visit MailerBot

• MailStream fits best

  API-first postcard and letter automation

• MailerBot fits best

  Advanced automated campaigns and integrations

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Side by side

Feature	MailStream 8.8/10 Visit ↗	MailerBot 8.6/10 Visit ↗
At a glance
Editor score	8.8	8.6
Ranking	#5 in Direct Mail Automation Software	#7 in Direct Mail Automation Software
Best for	API-first postcard and letter automation	Advanced automated campaigns and integrations
Pricing model	Free plan + paid	Paid
Starting price	$99/mo	$99/mo
Free plan	✓ (best)	—
Free trial	—	—
Deployment	Cloud	Cloud, Desktop
Platforms	Web	Web, Windows, macOS, Linux
Support	Email, Docs	Email, Live chat, Community, Docs
Integrations	11 integrations	15 integrations
Built for	Solo, Small business, Mid-market, Enterprise	Solo, Small business, Mid-market, Enterprise
Features MailStream 2/2 · MailerBot 2/2
API access	✓	✓
Address verification	✓	✓
Specs
Mail formats	4×6, 6×9, and 6×11 postcards; 8.5×11 letters	postcards, letters, invoices, EDDM, custom print pieces
Personalization level	Variable	One-to-one
CRM connections	Planning Center, HubSpot, Salesforce, GoHighLevel, ActiveCampaign	HubSpot, Salesforce, ServiceTitan, Housecall Pro, Jobber, FieldEdge, Workiz
Delivery scope	Domestic	Not checked yet
Our review
Pros	REST API, webhooks, and AI-agent MCP server Variable-data personalization with reusable HTML/CSS templates Address verification, USPS tracking, and radius-based targeting	Scheduled, triggered, drip, and multi-touch campaigns REST API, SDKs, and one-to-one personalization Address verification, tracking, and EDDM support
Cons	Delivery is currently focused on the US Priority support starts with the $99 Pro plan Enterprise features require a $499 monthly subscription	No free plan Command requires $399 per month Some listed connectors may not be immediately available
Our verdict	MailStream is a direct mail automation platform for sending postcards and letters through a web dashboard, REST API, webhooks, or AI-agent workflows. It is designed for developers, marketers, agencies, SaaS teams, e-commerce businesses,… Read the review →	MailerBot is a direct mail automation platform for businesses that need to create, personalize, and send physical mail. It supports postcards, letters, invoices, custom print pieces, and EDDM through a web dashboard or REST API. Retailers,… Read the review →

Strengths and trade-offs

• MailStream — where it wins

  • REST API, webhooks, and AI-agent MCP server
  • Variable-data personalization with reusable HTML/CSS templates
  • Address verification, USPS tracking, and radius-based targeting

  Where it doesn't

  • Delivery is currently focused on the US
  • Priority support starts with the $99 Pro plan
  • Enterprise features require a $499 monthly subscription

• MailerBot — where it wins

  • Scheduled, triggered, drip, and multi-touch campaigns
  • REST API, SDKs, and one-to-one personalization
  • Address verification, tracking, and EDDM support

  Where it doesn't

  • No free plan
  • Command requires $399 per month
  • Some listed connectors may not be immediately available

• MailStream8.8/10 · Free plan

  A strong API-first choice for variable direct mail, with plans from free to enterprise.

  Visit MailStreamFull verdict →
• MailerBot8.6/10 · Paid

  A capable choice for automated, personalized mail with API and CRM connections.

  Visit MailerBotFull verdict →