MailmodovsCustomer.io

Mailmodo vs Customer.io

Interactive emails vs behavioral messaging power

TL;DR

Mailmodo offers innovative AMP emails with in-email forms and surveys, but only works in Gmail and Yahoo Mail. Customer.io is a powerful behavioral messaging platform at $100/month for 5k profiles with event-driven automation, push, SMS, and in-app messaging. Choose Mailmodo for interactive email experiments; choose Customer.io for sophisticated multi-channel automation.

Key Differences

The main things that set these tools apart

Platform Sophistication
Customer.io wins

Customer.io is an enterprise-grade behavioral messaging platform with years of development. Deep event tracking, sophisticated segmentation, multi-channel orchestration. Mailmodo focuses narrowly on email with AMP innovation. For complex messaging needs, Customer.io is far more powerful.

Email Technology

Mailmodo's AMP emails let subscribers fill forms and surveys inside the email. Customer.io uses standard emails but excels at behavioral triggers - sending the right message based on user actions. Different strengths.

Multi-Channel
Customer.io wins

Customer.io supports email, push notifications, SMS, and in-app messaging from one platform with unified workflows. Mailmodo is email-only. For multi-channel customer communication, Customer.io wins decisively.

Price and Complexity
Mailmodo wins

Mailmodo costs $39/month at 5k contacts. Customer.io costs $100/month with steeper learning curve. Mailmodo is cheaper and simpler. Customer.io justifies the price with capabilities Mailmodo can't match.

Pricing Comparison

At 5,000 contacts

Mailmodo
$39/month

Lite plan, AMP emails, basic automation

Visit Mailmodo
Customer.io
$100/month

Essentials plan, 1M emails, $0.009/extra profile

Visit Customer.io
Sequenzy

The SaaS alternative

$29/month

SaaS-focused, Stripe integration, 5k contacts

Feature Comparison

Side-by-side feature breakdown

Feature
Mailmodo
Customer.io
Sequenzy
Email Technology
AMP interactive emails
Core feature
In-email forms
In-email surveys
Email client support
Gmail, Yahoo only
Universal
Universal
Multi-Channel
Push notifications
In-app messaging
SMS
Add-on
Webhooks
Basic
Advanced
Automation & Behavioral
Event-driven automation
Standard
Advanced, any event
Events + Stripe
Visual workflow builder
Conditional logic
Basic
Advanced branching
Good
Segmentation
Good
Advanced behavioral
Attribute-based
A/B testing
Send time optimization
Technical Capabilities
API depth
Standard REST
Comprehensive REST
Developer-friendly
Data warehouse sync
Limited
Advanced (Reverse ETL)
Limited
Real-time event processing
Standard
Advanced
Good
Setup complexity
Moderate
High
Low
Pricing
Price at 5k
$39/month
$100/month
$29/month
Free tier
21-day trial
No (startup program)
14-day trial
Learning curve
Moderate
Steep
Low

Best For

When to choose each tool

Choose Mailmodo if you...
  • Teams wanting interactive email experiments
  • B2C with Gmail-heavy audiences
  • Lead generation with in-email forms
  • Survey and feedback collection campaigns
  • Budget-conscious teams wanting email innovation
Choose Customer.io if you...
  • Growth-stage SaaS with complex automation needs
  • Multi-channel messaging requirements
  • Deep behavioral tracking and segmentation
  • Teams with engineering resources for setup
  • Enterprise compliance requirements
Choose Sequenzy if you...
  • SaaS founders needing Stripe integration
  • Companies wanting simplicity without Customer.io complexity
  • Teams needing subscription-aware automation
  • Startups seeking lower cost than both competitors

When to Consider Sequenzy Instead

Native Stripe Integration

Neither Mailmodo nor Customer.io has native Stripe integration out of the box. Sequenzy connects directly to Stripe for subscription-aware automation - trial ending, payment failed, plan upgraded.

Simpler Than Customer.io

Customer.io is powerful but complex. Sequenzy offers SaaS-specific automation without the steep learning curve or enterprise pricing.

Lower Cost

At $29/month for 5k contacts, Sequenzy costs less than both Mailmodo ($39) and Customer.io ($100). Best value for SaaS with billing integration.

Try Sequenzy Free

Overview

Mailmodo and Customer.io serve different needs with different approaches. Mailmodo is a YC-backed platform bringing AMP technology for interactive emails. Customer.io is an enterprise-grade behavioral messaging platform with years of development powering sophisticated multi-channel automation. See our Mailmodo comparison and Customer.io comparison for more context.

These platforms aren't really direct competitors. Customer.io is in a different league of sophistication.

Power vs Innovation

Customer.io is powerful. Deep event tracking. Sophisticated segmentation. Multi-channel orchestration - email, push, SMS, in-app. Advanced conditional logic. Data warehouse integrations. Enterprise compliance.

Mailmodo is innovative. AMP emails with forms and surveys inside the email. Reduce friction for engagement. Unique technology that few competitors offer.

The question: Do you need messaging sophistication or email technology innovation?

Multi-Channel Reality

Customer.io supports email, push notifications, SMS, and in-app messaging from one platform. Unified workflows can send the right message on the right channel based on user behavior.

Mailmodo is email-only. If you need multi-channel customer messaging, there's no comparison - Customer.io wins.

Email Client Compatibility

Customer.io emails work in every email client. Outlook, Apple Mail, Gmail, Yahoo - all supported equally.

Mailmodo's AMP features only work in Gmail and Yahoo Mail. For B2B SaaS with Outlook-heavy audiences, this significantly reduces Mailmodo's value. Customer.io's standard emails reach everyone.

Pricing and Complexity Trade-off

Mailmodo costs $39/month at 5k contacts with moderate complexity. Customer.io costs $100/month with steep learning curve.

Customer.io requires more setup - event tracking implementation, workflow design, channel configuration. Mailmodo is simpler but less capable.

The price difference reflects the capability gap.

When Each Platform Shines

Choose Mailmodo when: You want to experiment with interactive emails. Your audience is Gmail-heavy. Survey completion rates matter. You don't need multi-channel or sophisticated automation.

Choose Customer.io when: You need enterprise-grade behavioral messaging. Multi-channel communication is important. Sophisticated segmentation and automation are required. You have engineering resources for setup.

The Sequenzy Alternative

For SaaS companies wanting native Stripe integration without Customer.io's complexity, consider Sequenzy at $29/month for 5k contacts. It offers subscription-aware automation that neither competitor provides natively, with a simpler setup experience. Check our Stripe integration features.

Frequently Asked Questions

For sophisticated SaaS automation, yes. Customer.io offers deep behavioral triggers, multi-channel messaging, and advanced segmentation. Mailmodo's AMP emails are interesting for surveys but don't address core SaaS messaging needs like Customer.io does.

No. Customer.io has far more sophisticated automation with advanced branching, any-event triggers, and multi-channel orchestration. Mailmodo's automation is functional but basic compared to Customer.io's enterprise capabilities.

No, Customer.io uses standard HTML emails. However, it compensates with superior behavioral triggers and multi-channel capabilities that Mailmodo lacks.

Customer.io costs $100/month at 5k profiles - more than double Mailmodo's $39/month. However, Customer.io offers multi-channel messaging and enterprise features that justify the price for teams that need them.

No, but they offer a startup program providing one free year for companies with under $10M raised. Mailmodo offers a 21-day trial. Neither has a permanent free tier.

Customer.io is significantly more powerful for behavioral tracking. It can trigger messages based on any event with complex conditional logic. Mailmodo handles basics but lacks Customer.io's sophistication.

Not with the interactivity of Mailmodo's AMP. Customer.io emails can link to surveys, but Mailmodo allows completing surveys inside the email itself for Gmail/Yahoo users.

Customer.io is better for B2B SaaS due to advanced behavioral automation and universal email client support. Mailmodo's AMP features don't work in Outlook, which B2B audiences heavily use.

Export contacts from Mailmodo. Import into Customer.io as people/profiles. Set up event tracking in Customer.io for behavioral triggers. Rebuild automations in Customer.io's campaign builder - you'll gain sophisticated branching but lose AMP interactivity. Plan for longer setup time.

Export people from Customer.io. Import into Mailmodo. You'll lose multi-channel capabilities, advanced behavioral triggers, and sophisticated segmentation. You'll gain AMP email interactivity for Gmail/Yahoo users. This is a significant downgrade for most SaaS use cases.

Not sure which to pick?

If you're a SaaS founder who needs Stripe integration and unified email, try Sequenzy free. No credit card required.

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Sequenzy - Complete Pricing Guide

Pricing Model

Sequenzy uses subscriber-based pricing. You only pay for subscribers active in sequences (automations). Inactive subscribers are free to store.

All Pricing Tiers

  • 0-100 subscribers: Free (Free annually) - 2k emails/month
  • 101-1,000 subscribers: $19/month ($205/year annually) - 15k emails/month
  • 1,001-5,000 subscribers: $29/month ($313/year annually) - 60k emails/month
  • 5,001-10,000 subscribers: $49/month ($529/year annually) - 120k emails/month
  • 10,001-25,000 subscribers: $99/month ($1069/year annually) - 300k emails/month
  • 25,001-50,000 subscribers: $199/month ($2149/year annually) - 600k emails/month
  • 50,001-100,000 subscribers: $349/month ($3769/year annually) - 1.2M emails/month
  • 100,000+ subscribers: Custom pricing (Custom annually) - Unlimited emails/month

Yearly billing: All plans offer a 10% discount when billed annually.

Free Plan Features (0-100 subscribers)

  • Visual automation builder
  • Transactional email API
  • Reply tracking & team inbox
  • Goal tracking & revenue attribution
  • Dynamic segments
  • Payment integrations
  • Full REST API access
  • Custom sending domain

Paid Plan Features (1,000 - 100,000 subscribers)

  • Visual automation builder
  • Transactional email API
  • Reply tracking & team inbox
  • Goal tracking & revenue attribution
  • Dynamic segments
  • Payment integrations (Stripe, Paddle, Lemon Squeezy)
  • Full REST API access
  • Custom sending domain

Enterprise Plan Features (100,000+ subscribers)

  • Visual automation builder
  • Transactional email API
  • Reply tracking & team inbox
  • Goal tracking & revenue attribution
  • Dynamic segments
  • Payment integrations
  • Full REST API access
  • Custom sending domain

Important Pricing Notes

  • You only pay for subscribers who are active in automations/sequences
  • Storing inactive subscribers is free
  • No hidden fees - all features included in the price
  • No credit card required for free tier

Contact

  • Pricing Page: https://sequenzy.com/pricing
  • Sales: hello@sequenzy.com