DoubleZero vs Mailchimp: Features, Pricing and User Reviews 2026
Compare features, pricing, reviews, and more to make an informed decision
DoubleZero
DoubleZero is a free, open-source email service you can host yourself using AWS SES for sending and monitoring emails.
Mailchimp
Mailchimp is an email marketing and automation platform that helps businesses create campaigns, manage audiences, and grow customer relationships easily.
DoubleZero
DoubleZero is a free, open-source email service you can host yourself using AWS SES for sending and monitoring emails.
Mailchimp
Mailchimp is an email marketing and automation platform that helps businesses create campaigns, manage audiences, and grow customer relationships easily.
DoubleZero
Self-hosted email service with AWS SES integration
Email monitoring dashboard with delivery tracking
Multi-recipient tracking and analytics
REST API and JavaScript client library
Open source and fully customizable
Docker container deployment
SST automated AWS configuration
Pro version with WYSIWYG editor and automation
Contact and list management capabilities
Team collaboration features
Mailchimp
Email campaign creation with drag-and-drop editor
Marketing automation for customer journeys
Contact management and smart segmentation
Real-time analytics and performance tracking
Integration with Shopify, WordPress, and Salesforce
Landing page and website builder
Social media post scheduling
SMS marketing add-on
AI-powered send time optimization
Mobile app for iOS and Android
DoubleZero
DoubleZero offers two pricing options that stand out from typical subscription services.
The Free Version is completely open source and available at no cost. You can download the code, host it yourself, and use all core features including transactional emails, monitoring dashboard, multi-recipient tracking, SMTP endpoint, and REST API access. Your only costs are AWS SES fees, which are extremely low at around $0.10 per thousand emails.
The Pro Version costs $175 as a one-time purchase. This is not a monthly subscription. You buy it once and own it forever. Pro adds powerful features including a WYSIWYG email editor, contact management system, email lists, broadcast campaigns, team collaboration tools, activity feed, and automation workflows.
Both versions require you to provide your own AWS account and hosting, giving you complete control and keeping ongoing costs minimal.
Mailchimp
Mailchimp offers flexible pricing based on your contact list size and features needed.
Free Plan: Perfect for beginners with up to 500 contacts and 1,000 monthly emails. Includes basic email tools and limited reporting. Currently has a promotional offer with expanded features.
Essentials Plan: Starts at $13 per month for 500 contacts (promotional price $6.50 for 12 months). Includes 5,000 monthly emails, 3 user seats, and 24/7 support with limited automation.
Standard Plan: Starts at $20 per month for 500 contacts (promotional price $10 for 12 months). Offers 6,000 monthly emails, 5 user seats, advanced automation with 200 flow steps, and AI features at no extra cost.
Premium Plan: Starts at $350 per month for 10,000 contacts (promotional price $175 for 12 months). Includes 150,000 monthly emails, unlimited users and audiences, phone support, and 5 role-based access levels for complex business needs.
All paid plans scale with your contact list, and you get better features as you upgrade.