MaileroovsPlunk

Maileroo vs Plunk

email delivery service with SMTP relay, REST API, and free email verification vs open-source modern email platform for developers

TL;DR

Maileroo ($8/month) is a email delivery service with SMTP relay, REST API, and free email verification. Plunk (Free tier) is a open-source modern email platform for developers. Maileroo wins on free email verification api. Plunk wins on open source. For SaaS founders, Sequenzy ($49/mo) offers Stripe integration and AI sequences that neither provides.

Key Differences

The main things that set these tools apart

Pricing Model

Maileroo costs $8/month. Plunk costs Free tier. Different pricing models for different needs and budgets.

Primary Strength

Maileroo is best for free email verification api. Plunk is best for open source. They optimize for different goals.

Feature Depth

Maileroo strengths: Free email verification API, Free dedicated IPs on 250k+ plans, SDKs for 7+ languages. Plunk strengths: Open source, Modern stack, Developer-friendly.

Pricing Comparison

At comparable email volume

Maileroo
$8/month

Free 5,000 emails/mo. Paid from $8/mo. Free email verification API. 50% nonprofit discount.

Visit Maileroo
Plunk
Free tier

Free tier. Open-source. Modern. Transactional + marketing. Developer-friendly.

Visit Plunk
Sequenzy

The SaaS alternative

$49/month

SaaS marketing + transactional, Stripe integration, 10k contacts

Feature Comparison

Side-by-side feature breakdown

Feature
Maileroo
Plunk
Sequenzy
Email Delivery
API Quality
Modern REST + SMTP
Open source
Modern REST
Free Tier
5,000 emails/mo
Free tier
Free trial
Email Verification
Free API included
SDK Support
7+ languages
Available
TypeScript, Python
Marketing Features
Campaign Sending
Templates + forms
Limited
Full campaigns
Automation
Limited
AI-powered sequences
Stripe Integration
Native

Best For

When to choose each tool

Choose Maileroo if you...
  • Free email verification API
  • Free dedicated IPs on 250k+ plans
  • SDKs for 7+ languages
  • Drag-and-drop templates
Choose Plunk if you...
  • Open source
  • Modern stack
  • Developer-friendly
  • Transactional + marketing
Choose Sequenzy if you...
  • SaaS founders needing Stripe integration
  • Teams wanting marketing + transactional in one
  • Startups wanting AI-powered email sequences
  • Companies building subscription businesses

When to Consider Sequenzy Instead

Built for SaaS

Neither Maileroo nor Plunk offers native Stripe integration. Sequenzy connects to [Stripe](/features/stripe-integration) and triggers emails based on subscription events automatically.

Marketing + Transactional Unified

One platform for [campaigns](/features/campaigns), [transactional emails](/features/transactional-emails), and [AI sequences](/features/ai-sequences). No stitching tools together.

AI-Powered Sequences

Describe what you want and Sequenzy generates the email sequence. Neither Maileroo nor Plunk has AI content generation built in.

Simple Pricing

$49/month for 10,000 subscribers with everything included. Check [pricing](/pricing) for details.

Try Sequenzy Free

Overview

Maileroo and Plunk both handle email delivery but approach it differently. Maileroo is a email delivery service with SMTP relay, REST API, and free email verification. Plunk is a open-source modern email platform for developers.

Delivery Approach

Maileroo offers SMTP relay and REST API with a standout feature: free email verification API included with all plans. Starting at $8/month with 5,000 free emails, it's positioned as an affordable alternative to established providers.

Plunk offers open source and modern stack, providing a developer-friendly alternative in the email delivery space.

Pricing

Maileroo starts free (5,000 emails/mo) with paid plans from $8/month. Plunk Free tier. Open-source. Modern. Transactional + marketing. Developer-friendly.. Maileroo's free email verification API is a genuine differentiator that can save you money on a separate verification service.

The SaaS Alternative

If you're building a SaaS product and need both transactional delivery and marketing automation, Sequenzy unifies both with Stripe integration and AI sequences. No need to stitch together a delivery API and a marketing tool.

Making the Choice

Choose Maileroo for affordable delivery with free email verification. Choose Plunk for open source. For unified SaaS email, consider Sequenzy.

Frequently Asked Questions

Maileroo costs $8/month. Plunk costs Free tier. The better value depends on what features you need beyond just sending.

Neither is purpose-built for SaaS. For subscription businesses, Sequenzy offers native Stripe integration, AI sequences, and unified transactional + marketing email at $49/month.

Yes. Export your contacts from Maileroo and import them into Plunk. Templates and automations will need to be recreated. Domain authentication (SPF, DKIM) needs to be reconfigured.

Maileroo has limited automation. For advanced automation, consider ActiveCampaign or Sequenzy.

Both have adequate deliverability for their use cases. Proper domain authentication (SPF, DKIM, DMARC) matters more than the platform choice.

Sequenzy combines marketing and transactional email with native Stripe integration and AI sequences at $49/month. Built specifically for SaaS businesses that need subscription-aware email automation.

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.

Start Free TrialSee All Features

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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