10 Best Email Marketing Tools for Dify AI Apps
You built your AI app with Dify because you wanted open-source agentic workflows. With 100K+ GitHub stars and model-neutral support (GPT-4, Claude, Llama), Dify has become the go-to for AI-powered applications. Now you need email that matches your AI-first approach.
Dify users expect AI-native workflows. Your email platform should use AI for content generation, optimization, and automation. Traditional rule-based email feels dated when your entire app is powered by LLMs.
This guide covers 10 email marketing tools that fit AI-powered Dify applications. I prioritized platforms with AI features that complement Dify's approach. If you are using a different tool, check out our guides for Cursor, Replit, or Lovable.
Quick Comparison
| Tool | Best For | Price at 10k Subs | AI Features | Automation |
|---|---|---|---|---|
| Sequenzy | AI sequences | $49/mo | AI generation | Advanced |
| Customer.io | AI segmentation | $100+/mo | AI optimization | Advanced |
| Encharge | AI-powered | $79+/mo | AI automation | Advanced |
| ActiveCampaign | AI features | $29+/mo | AI content | Advanced |
| Mailmodo | AI + AMP | Free-$99/mo | AI + interactive | Moderate |
| SendGrid | AI writing | $20-$90/mo | AI assist | Moderate |
| Brevo | AI assistant | Free-$25/mo | AI writing | Moderate |
| Loops | Modern | $79/mo | Basic | Moderate |
| Resend | API | $20/mo (volume) | None | None |
| Postmark | Reliable | $15/mo (volume) | None | Basic |
1. Sequenzy
Price: Free (100 subscribers) / $49/mo at 10,000 subscribers. Transactional emails included at no extra cost.
Dify builds AI apps. Sequenzy's AI campaign generator creates complete emails from a goal description, matching the AI-first workflow Dify users expect. Describe what you want, get working email sequences.
AI-native email for AI-native apps. The AI sequence generator creates complete onboarding, activation, and retention flows from natural language prompts. Visual builder handles behavioral triggers and conditional logic.
At $49/mo for 10k subscribers, it is cheaper than every AI-focused alternative. Revenue attribution tracks which sequences drive MRR.
Sequenzy handles both transactional and marketing in one platform.
Where it falls short: AI focuses on sequences, not per-email optimization.
Best for: Indie hackers building AI products who want sophisticated automation without complexity.
2. Customer.io
Price: From $100/mo for up to 5,000 profiles
Customer.io uses AI for segmentation and optimization. Predictive audiences, send-time optimization, multi-channel orchestration.
Where it falls short: Expensive. AI features are optimization, not generation.
Best for: AI optimization of existing campaigns.
3. Encharge
Price: From $79/mo
Encharge focuses on AI-powered automation for SaaS. Behavior-based flows, AI-driven optimization.
Where it falls short: Not the cheapest.
Best for: AI-powered behavioral automation.
4. ActiveCampaign
Price: From $29/mo for 1,000 contacts
ActiveCampaign offers AI content suggestions and optimization.
Where it falls short: AI features are additions, not core.
Best for: CRM with AI features.
5. Mailmodo
Price: Free (1,000 contacts) / $99/mo at 10,000
Mailmodo combines AI with AMP emails for interactive experiences. Surveys, forms, calendars inside emails.
Where it falls short: AMP support varies by email client.
Best for: Interactive AI-powered emails.
6. SendGrid
Price: Free (100 emails/day) / $20-$90/mo at scale
SendGrid offers AI writing assistance for email content.
Where it falls short: AI is basic writing help.
Best for: Scale with AI writing help.
7. Brevo
Price: Free (300 emails/day) / $25/mo at 20,000 emails
Brevo includes AI assistant for content generation.
Where it falls short: AI is writing focused.
Best for: Budget with AI writing.
8. Loops
Price: Free (1,000 contacts) / $79/mo at 10,000 subscribers
Loops is modern but AI features are limited.
Where it falls short: No significant AI features.
Best for: Modern approach without AI focus.
9. Resend
Price: Free (3,000 emails/month) / $20/mo for 50,000 emails
Resend is excellent API without AI features.
Where it falls short: No AI. Pure transactional.
Best for: Developer transactional.
10. Postmark
Price: From $15/mo for 10,000 emails
Postmark focuses on deliverability, not AI.
Where it falls short: No AI features.
Best for: Transactional reliability.
AI Email Patterns for Dify
LLM-generated content
Use Dify to generate email content, then send via email platform API. Personalized emails at scale.
Behavior-triggered sequences
Track user behavior in your Dify app, trigger email sequences based on actions.
AI segmentation
Use AI to segment users based on behavior patterns, send targeted campaigns.
The Bottom Line
For Dify AI apps, Sequenzy offers AI-native email generation that matches Dify's approach. For AI optimization, Customer.io. For AI + interactive, Mailmodo.
See our SaaS email marketing guide for more context.